What do I need to know about cookies?

<!DOCTYPE html> <html lang="en" class="no-js b-header--white--black"> <head><script type="text/javascript" src="/_static/js/bundle-playback.js?v=HxkREWBo" charset="utf-8"></script> <script type="text/javascript" src="/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("https://www.bbc.co.uk/usingthebbc/cookies/what-do-i-need-to-know-about-cookies/","20200217171921","https://web.archive.org/","web","/_static/", "1581959961"); </script> <link rel="stylesheet" type="text/css" href="/_static/css/banner-styles.css?v=S1zqJCYt" /> <link rel="stylesheet" type="text/css" href="/_static/css/iconochive.css?v=3PDvdIFv" />         <meta name="viewport" content="width=device-width, initial-scale=1.0"><meta property="fb:admins" content="100004154058350"><link rel="stylesheet" href="https://web.archive.org/web/20200217171921cs_/https://nav.files.bbci.co.uk/orbit/1b2e292884201dd13064a9204e177864/css/orb-ltr.min.css"><script type="text/javascript">/*<![CDATA[*/ window.orb = { lang: 'en', bbcBaseUrl: 'https://web.archive.org/web/20200217171921/https://www.bbc.co.uk', bbcUrlPrefix: 'https://web.archive.org/web/20200217171921/https://www.', staticHost: 'https://web.archive.org/web/20200217171921/https://nav.files.bbci.co.uk/orbit/1b2e292884201dd13064a9204e177864', figUrl: 'https://web.archive.org/web/20200217171921/https://fig.bbc.co.uk/frameworks/fig/2/fig.js', partialCookieOvenUrl: 'https://web.archive.org/web/20200217171921/https://cookie-oven.api.bbc' }; document.documentElement.className += (document.documentElement.className? ' ' : '') + 'orb-js'; window.orb.worldwideNavlinks = '<li class="orb-nav-homedotcom"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.com/">Home</a></li><li class="orb-nav-newsdotcom"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.com/news">News</a></li><li class="orb-nav-sport"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.com/sport">Sport</a></li><li class="orb-nav-reeldotcom"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.com/reel">Reel</a></li><li class="orb-nav-worklife"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.com/worklife">Worklife</a></li><li class="orb-nav-traveldotcom"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.com/travel">Travel</a></li><li class="orb-nav-future"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.com/future">Future</a></li><li class="orb-nav-culture"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.com/culture">Culture</a></li><li class="orb-nav-music"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.com/culture/music">Music</a></li><li class="orb-nav-tv"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/schedules/p00fzl9m">TV</a></li><li class="orb-nav-weather"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.com/weather">Weather</a></li><li class="orb-nav-sounds"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/sounds">Sounds</a></li>'; /*]]>*/</script><script>// Promise polyfill from https://github.com/bramstein/promis (function(){'use strict';var f,g=[];function l(a){g.push(a);1==g.length&&f()}function m(){for(;g.length;)g[0](),g.shift()}f=function(){setTimeout(m)};function n(a){this.a=p;this.b=void 0;this.f=[];var b=this;try{a(function(a){q(b,a)},function(a){r(b,a)})}catch(c){r(b,c)}}var p=2;function t(a){return new n(function(b,c){c(a)})}function u(a){return new n(function(b){b(a)})}function q(a,b){if(a.a==p){if(b==a)throw new TypeError;var c=!1;try{var d=b&&b.then;if(null!=b&&"object"==typeof b&&"function"==typeof d){d.call(b,function(b){c||q(a,b);c=!0},function(b){c||r(a,b);c=!0});return}}catch(e){c||r(a,e);return}a.a=0;a.b=b;v(a)}} function r(a,b){if(a.a==p){if(b==a)throw new TypeError;a.a=1;a.b=b;v(a)}}function v(a){l(function(){if(a.a!=p)for(;a.f.length;){var b=a.f.shift(),c=b[0],d=b[1],e=b[2],b=b[3];try{0==a.a?"function"==typeof c?e(c.call(void 0,a.b)):e(a.b):1==a.a&&("function"==typeof d?e(d.call(void 0,a.b)):b(a.b))}catch(h){b(h)}}})}n.prototype.g=function(a){return this.c(void 0,a)};n.prototype.c=function(a,b){var c=this;return new n(function(d,e){c.f.push([a,b,d,e]);v(c)})}; function w(a){return new n(function(b,c){function d(c){return function(d){h[c]=d;e+=1;e==a.length&&b(h)}}var e=0,h=[];0==a.length&&b(h);for(var k=0;k<a.length;k+=1)u(a[k]).c(d(k),c)})}function x(a){return new n(function(b,c){for(var d=0;d<a.length;d+=1)u(a[d]).c(b,c)})};window.Promise||(window.Promise=n,window.Promise.resolve=u,window.Promise.reject=t,window.Promise.race=x,window.Promise.all=w,window.Promise.prototype.then=n.prototype.c,window.Promise.prototype["catch"]=n.prototype.g);}()); // Polyfill Event constructor for IE ref: https://jira.dev.bbc.co.uk/browse/ORBITEN-919 // see: https://stackoverflow.com/questions/26596123 (function () { if (typeof window.CustomEvent === "function") { return false; } function CustomEvent(event, params) { params = params || { bubbles: false, cancelable: false, detail: undefined }; var evt = document.createEvent('CustomEvent'); evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail); return evt; } CustomEvent.prototype = window.Event.prototype; window.Event = CustomEvent; })(); //Element.prototype.matches polyfill //from https://developer.mozilla.org/en-US/docs/Web/API/Element/matches#Polyfill if (!Element.prototype.matches) { Element.prototype.matches = Element.prototype.msMatchesSelector || Element.prototype.webkitMatchesSelector; } //NodeList.forEach Polyfill //from https://developer.mozilla.org/en-US/docs/Web/API/NodeList/forEach#Polyfill if (window.NodeList && !NodeList.prototype.forEach) { NodeList.prototype.forEach = Array.prototype.forEach; } // Object.assign polyfill from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign#Polyfill if (typeof Object.assign != 'function') { // Must be writable: true, enumerable: false, configurable: true Object.defineProperty(Object, "assign", { value: function assign(target, varArgs) { // .length of function is 2 'use strict'; if (target == null) { // TypeError if undefined or null throw new TypeError('Cannot convert undefined or null to object'); } var to = Object(target); for (var index = 1; index < arguments.length; index++) { var nextSource = arguments[index]; if (nextSource != null) { // Skip over if undefined or null for (var nextKey in nextSource) { // Avoid bugs when hasOwnProperty is shadowed if (Object.prototype.hasOwnProperty.call(nextSource, nextKey)) { to[nextKey] = nextSource[nextKey]; } } } } return to; }, writable: true, configurable: true }); } // window.fetch polyfill https://github.com/github/fetch/blob/v0.11.0/fetch.js - chosen for IE9 compatibility if(typeof window.fetch !== 'function') { (function(self){"use strict";if(self.fetch){return}function normalizeName(name){if(typeof name!=="string"){name=String(name)}if(/[^a-z0-9\-#$%&'*+.\^_`|~]/i.test(name)){throw new TypeError("Invalid character in header field name")}return name.toLowerCase()}function normalizeValue(value){if(typeof value!=="string"){value=String(value)}return value}function Headers(headers){this.map={};if(headers instanceof Headers){headers.forEach(function(value,name){this.append(name,value)},this)}else if(headers){Object.getOwnPropertyNames(headers).forEach(function(name){this.append(name,headers[name])},this)}}Headers.prototype.append=function(name,value){name=normalizeName(name);value=normalizeValue(value);var list=this.map[name];if(!list){list=[];this.map[name]=list}list.push(value)};Headers.prototype["delete"]=function(name){delete this.map[normalizeName(name)]};Headers.prototype.get=function(name){var values=this.map[normalizeName(name)];return values?values[0]:null};Headers.prototype.getAll=function(name){return this.map[normalizeName(name)]||[]};Headers.prototype.has=function(name){return this.map.hasOwnProperty(normalizeName(name))};Headers.prototype.set=function(name,value){this.map[normalizeName(name)]=[normalizeValue(value)]};Headers.prototype.forEach=function(callback,thisArg){Object.getOwnPropertyNames(this.map).forEach(function(name){this.map[name].forEach(function(value){callback.call(thisArg,value,name,this)},this)},this)};function consumed(body){if(body.bodyUsed){return Promise.reject(new TypeError("Already read"))}body.bodyUsed=true}function fileReaderReady(reader){return new Promise(function(resolve,reject){reader.onload=function(){resolve(reader.result)};reader.onerror=function(){reject(reader.error)}})}function readBlobAsArrayBuffer(blob){var reader=new FileReader;reader.readAsArrayBuffer(blob);return fileReaderReady(reader)}function readBlobAsText(blob){var reader=new FileReader;reader.readAsText(blob);return fileReaderReady(reader)}var support={blob:"FileReader"in self&&"Blob"in self&&function(){try{new Blob;return true}catch(e){return false}}(),formData:"FormData"in self,arrayBuffer:"ArrayBuffer"in self};function Body(){this.bodyUsed=false;this._initBody=function(body){this._bodyInit=body;if(typeof body==="string"){this._bodyText=body}else if(support.blob&&Blob.prototype.isPrototypeOf(body)){this._bodyBlob=body}else if(support.formData&&FormData.prototype.isPrototypeOf(body)){this._bodyFormData=body}else if(!body){this._bodyText=""}else if(support.arrayBuffer&&ArrayBuffer.prototype.isPrototypeOf(body)){}else{throw new Error("unsupported BodyInit type")}if(!this.headers.get("content-type")){if(typeof body==="string"){this.headers.set("content-type","text/plain;charset=UTF-8")}else if(this._bodyBlob&&this._bodyBlob.type){this.headers.set("content-type",this._bodyBlob.type)}}};if(support.blob){this.blob=function(){var rejected=consumed(this);if(rejected){return rejected}if(this._bodyBlob){return Promise.resolve(this._bodyBlob)}else if(this._bodyFormData){throw new Error("could not read FormData body as blob")}else{return Promise.resolve(new Blob([this._bodyText]))}};this.arrayBuffer=function(){return this.blob().then(readBlobAsArrayBuffer)};this.text=function(){var rejected=consumed(this);if(rejected){return rejected}if(this._bodyBlob){return readBlobAsText(this._bodyBlob)}else if(this._bodyFormData){throw new Error("could not read FormData body as text")}else{return Promise.resolve(this._bodyText)}}}else{this.text=function(){var rejected=consumed(this);return rejected?rejected:Promise.resolve(this._bodyText)}}if(support.formData){this.formData=function(){return this.text().then(decode)}}this.json=function(){return this.text().then(JSON.parse)};return this}var methods=["DELETE","GET","HEAD","OPTIONS","POST","PUT"];function normalizeMethod(method){var upcased=method.toUpperCase();return methods.indexOf(upcased)>-1?upcased:method}function Request(input,options){options=options||{};var body=options.body;if(Request.prototype.isPrototypeOf(input)){if(input.bodyUsed){throw new TypeError("Already read")}this.url=input.url;this.credentials=input.credentials;if(!options.headers){this.headers=new Headers(input.headers)}this.method=input.method;this.mode=input.mode;if(!body){body=input._bodyInit;input.bodyUsed=true}}else{this.url=input}this.credentials=options.credentials||this.credentials||"omit";if(options.headers||!this.headers){this.headers=new Headers(options.headers)}this.method=normalizeMethod(options.method||this.method||"GET");this.mode=options.mode||this.mode||null;this.referrer=null;if((this.method==="GET"||this.method==="HEAD")&&body){throw new TypeError("Body not allowed for GET or HEAD requests")}this._initBody(body)}Request.prototype.clone=function(){return new Request(this)};function decode(body){var form=new FormData;body.trim().split("&").forEach(function(bytes){if(bytes){var split=bytes.split("=");var name=split.shift().replace(/\+/g," ");var value=split.join("=").replace(/\+/g," ");form.append(decodeURIComponent(name),decodeURIComponent(value))}});return form}function headers(xhr){var head=new Headers;var pairs=xhr.getAllResponseHeaders().trim().split("\n");pairs.forEach(function(header){var split=header.trim().split(":");var key=split.shift().trim();var value=split.join(":").trim();head.append(key,value)});return head}Body.call(Request.prototype);function Response(bodyInit,options){if(!options){options={}}this.type="default";this.status=options.status;this.ok=this.status>=200&&this.status<300;this.statusText=options.statusText;this.headers=options.headers instanceof Headers?options.headers:new Headers(options.headers);this.url=options.url||"";this._initBody(bodyInit)}Body.call(Response.prototype);Response.prototype.clone=function(){return new Response(this._bodyInit,{status:this.status,statusText:this.statusText,headers:new Headers(this.headers),url:this.url})};Response.error=function(){var response=new Response(null,{status:0,statusText:""});response.type="error";return response};var redirectStatuses=[301,302,303,307,308];Response.redirect=function(url,status){if(redirectStatuses.indexOf(status)===-1){throw new RangeError("Invalid status code")}return new Response(null,{status:status,headers:{location:url}})};self.Headers=Headers;self.Request=Request;self.Response=Response;self.fetch=function(input,init){return new Promise(function(resolve,reject){var request;if(Request.prototype.isPrototypeOf(input)&&!init){request=input}else{request=new Request(input,init)}var xhr=new XMLHttpRequest;function responseURL(){if("responseURL"in xhr){return xhr.responseURL}if(/^X-Request-URL:/m.test(xhr.getAllResponseHeaders())){return xhr.getResponseHeader("X-Request-URL")}return}xhr.onload=function(){var status=xhr.status===1223?204:xhr.status;if(status<100||status>599){reject(new TypeError("Network request failed"));return}var options={status:status,statusText:xhr.statusText,headers:headers(xhr),url:responseURL()};var body="response"in xhr?xhr.response:xhr.responseText;resolve(new Response(body,options))};xhr.onerror=function(){reject(new TypeError("Network request failed"))};xhr.open(request.method,request.url,true);if(request.credentials==="include"){xhr.withCredentials=true}if("responseType"in xhr&&support.blob){xhr.responseType="blob"}request.headers.forEach(function(value,name){xhr.setRequestHeader(name,value)});xhr.send(typeof request._bodyInit==="undefined"?null:request._bodyInit)})};self.fetch.polyfill=true})(typeof self!=="undefined"?self:this); } if (typeof window.CustomEvent !== 'function') { function CustomEvent(event, params) { params = params || { bubbles: false, cancelable: false, detail: null }; var evt = document.createEvent('CustomEvent'); evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail); return evt; } CustomEvent.prototype = window.Event.prototype; window.CustomEvent = CustomEvent; } (function() { var language = 'en'; language = 'en'; var modal = false; var istatsLabels = {name: '' || undefined}; function getMetaValue(propertyName) { var metaTag = document.querySelector( "meta[property='" + propertyName + "'], " + "meta[name='" + propertyName + "']"); if (metaTag) { return metaTag.getAttribute("content"); } else { throw new Error('No meta tag called: ' + propertyName) } } function generateCountername() { if (window.location.protocol === 'file:') { return 'local.file'; } var pathName = window.location.pathname .replace(/\/$/, "") .replace(/^\//, "") .replace(/\//g, '.'); return pathName + '.page'; } var additionalPageProperties = {}; var page = { name: '' || istatsLabels.name || generateCountername(), destination: '' || null, producer: '' || null, section: '' || null, site: '' || istatsLabels.bbc_site || istatsLabels.app_name || istatsLabels.prod_name || null, contentId: '' || null, contentType: '' || null, edition: '' || null, additionalProperties: additionalPageProperties }; function updatePageData(newData) { page = Object.assign(page, newData); } document.addEventListener('bbc-page-reset', function(event) { if (event.detail && event.detail.page) { updatePageData(event.detail.page); } document.dispatchEvent(new Event('bbc-page-updated')); }); window.bbcpage = { loadModule: function(deps) { return new Promise(function (resolve, reject) { window.require(deps, function () { resolve.apply(this, arguments); }, function (error) { reject(error); }); }) }, loadCSS: function (url, timeout) { return window.bbcpage.loadModule(['orb/lib/_$']) .then(function($) { return new Promise(function(resolve, reject) { var stylesheet = loadCSS(url); $.onloadCSS(stylesheet, function() { resolve(); }); if (timeout) { setTimeout(function () { reject(); }, timeout); } }); }); }, isModal: function () { return modal; }, getLanguage: function () { return new Promise(function(resolve, reject) { resolve(language); }); }, trackRegion: function (region, labels) { return window.bbcpage.loadModule(['istats-1']) .then(function(istats) { var trackLabels = { region: region }; for (var label in labels) { trackLabels[label] = labels[label]; } var linkType = labels.linkType || 'internal'; istats.track(linkType, trackLabels); }); }, getName: function() { return Promise.resolve(page.name); }, getDestination: function() { return Promise.resolve(page.destination); }, getProducer: function() { return Promise.resolve(page.producer); }, getSite: function() { return Promise.resolve(page.site); }, getSection: function() { return Promise.resolve(page.section); }, getContentType: function() { return Promise.resolve(page.contentType); }, getContentId: function() { return Promise.resolve(page.contentId); }, getEdition: function() { return new Promise(function (resolve, reject) { if (page.edition) { resolve(page.edition); return; } try { resolve(getMetaValue('x-audience').toLowerCase()); } catch (err){ // This property is related to Chartbeat; see http://support.chartbeat.com/docs/ if (window._sf_async_config) { resolve(window._sf_async_config.region || null); } } resolve(null); }); }, getReferrer: function() { return Promise.resolve(window.orb && window.orb.referrer !== null && window.orb.referrer !== undefined ? window.orb.referrer : document.referrer); }, getAdditionalProperties: function() { return Promise.resolve(page.additionalProperties); } }; var USERINFO_URL = ""; var USERINFO_PREFIX = "www." || "www."; function initUserCache(orbitUser) { var availableAttr = [ 'X-Country', 'X-Ip_is_advertise_combined', 'X-Ip_is_uk_combined' ]; var userCache = availableAttr.reduce(function(user, curr, i) { if (!orbitUser[curr]) { return user; } var res = Object.assign({}, user); res[curr] = orbitUser[curr]; return res; }, {}); if (Object.keys(userCache).length !== availableAttr.length) { userCache._partial = true; } return userCache; } var user = initUserCache({ }); function checkStatus(response) { if (response.status >= 200 && response.status < 300) { return response; } else { var error = new Error(response.statusText); error.response = response; throw error; } } function parseJSON(response) { return response.json(); } var supportsCors = function() { return typeof XMLHttpRequest !== 'undefined' && 'withCredentials' in new XMLHttpRequest(); }; var getUserInfoFallback = function() { return window.bbcpage.loadModule(['orb/fig']) .then(function(orbFig) { return new Promise(function(resolve, reject) { orbFig.load(function(fig) { var getCountryFallback = function() { if (fig.geo.isUK()) { return 'GB'; } else if (fig.geo.isEU()) { return 'EU'; } }; resolve({ 'X-Country': user.country || getCountryFallback(), 'X-Ip_is_uk_combined': fig().uk ? 'yes' : 'no', 'X-Ip_is_advertise_combined': fig().ad ? 'yes' : 'no' }); }, function () { reject('Error determining country. Timeout?'); }); }); }); }; var _userInfoRequest; var getUserInfo = function() { var host = window.location.host.toString().match(/bbc\.com$/) ? 'bbc.com' : 'bbc.co.uk'; var userInfoUrl = USERINFO_URL || window.location.protocol + "//" + USERINFO_PREFIX + host + '/userinfo'; if (!user._partial) { return Promise.resolve(user); } if (!_userInfoRequest) { if (typeof window.fetch === 'undefined' || !supportsCors()) { _userInfoRequest = getUserInfoFallback(); } else { _userInfoRequest = window.fetch(userInfoUrl, { credentials: 'same-origin' }) .then(checkStatus) .then(parseJSON) .then(function(userInfo) { user = userInfo; return user; }); } } return _userInfoRequest; }; window.bbcuser = { getHashedId: function() { return window.bbcpage.loadModule(['idcta-v2/idcta-1']) .then(function(idcta) { return idcta.getCookieInstance().getHidFromCookie(); }); }, getCountry: function() { if (user['X-Country']) { return Promise.resolve(user['X-Country']); } return getUserInfo().then(function(userInfo) { return userInfo['X-Country'] || 'GB'; }); }, isUKCombined: function() { return getUserInfo().then(function(userInfo) { if (!userInfo['X-Ip_is_uk_combined']) { throw new Error('missing isUKCombined from userinfo response'); } return userInfo['X-Ip_is_uk_combined'].toLowerCase() === 'yes'; }) }, canSeeAdverts: function() { return getUserInfo().then(function(userInfo) { if (!userInfo['X-Ip_is_advertise_combined']) { throw new Error('missing canSeeAdverts from userinfo response'); } return userInfo['X-Ip_is_advertise_combined'].toLowerCase() === "yes"; }); }, isSignedIn: function() { return window.bbcpage.loadModule(['idcta-v2/idcta-1']) .then(function(idcta) { return (idcta && idcta.getCookieInstance().hasCookie()); }); }, allowsPerformanceCookies: function() { return window.bbcpage.loadModule(['orb/cookies']) .then(function(bbccookies) { return !!bbccookies.cookiesEnabled() && !!bbccookies.readPolicy('performance'); }); }, allowsFunctionalCookies: function() { return window.bbcpage.loadModule(['orb/cookies']) .then(function(bbccookies) { return !!bbccookies.cookiesEnabled() && !!bbccookies.readPolicy('personalisation'); }); }, getCookieValue: function(cookieName) { return window.bbcpage.loadModule(['orb/cookies']) .then(function(bbccookies) { return bbccookies.get(cookieName); }); }, resetCookiesPreferences: function() { return window.bbcpage.loadModule(['orb/cookies']) .then(function(bbccookies) { bbccookies.setDefaultCookiesSingleDomain(); }); }, hasCookiesEnabled: function() { return window.bbcpage.loadModule(['orb/cookies']) .then(function(bbccookies) { return !!bbccookies.cookiesEnabled(); }); }, hasSeenCookieBanner: function() { return window.bbcpage.loadModule(['orb/cookies']) .then(function (bbccookies) { return !!bbccookies.isCookiePolicySet(); }); }, logEvent: function (verb, noun, extraLabels) { return window.bbcuser.hasCookiesEnabled() .then(function(allowsCookies) { if (allowsCookies) { return window.bbcpage.loadModule(['istats-1']) .then(function(istats) { istats.log(verb, noun, extraLabels); }); } else { throw new Error('User cannot be tracked due to cookies preferences.'); } }); }, }; }());</script><script src="https://web.archive.org/web/20200217171921js_/https://nav.files.bbci.co.uk/orbit/1b2e292884201dd13064a9204e177864/js/require.min.js"></script> <script src="https://web.archive.org/web/20200217171921js_/https://nav.files.bbci.co.uk/orbit-webmodules/0.0.2-441.b5f0561/cookie-banner/cookie-library.min.js"></script><script type="text/javascript">if (window.define !== undefined) { define('orb/cookies', function() { return window.bbccookies; }); }</script> <script src="https://web.archive.org/web/20200217171921js_/https://nav.files.bbci.co.uk/orbit/1b2e292884201dd13064a9204e177864/js/api.min.js"></script><script type="text/javascript">window.bbcFlagpoles_istats="ON",require.config({paths:{"istats-1":"https://web.archive.org/web/20200217171921/https://nav.files.bbci.co.uk/orbit-webmodules/0.0.2-441.b5f0561/istats/istats-1"}}),require(["istats-1","orb/cookies"],function(t,a){if(a.isAllowed("s1")){var e=(o=document.location.href.match(/^(?:https|http):\/\/\w*\.(?:(int|test|stage|live|)\.)?bbc\.(?:co\.uk|com)/))?void 0===o[1]||""===o[1]||"live"===o[1]?"//web.archive.org/web/20200217171921/https://sa.bbc.co.uk/bbc/bbc/s":"//web.archive.org/web/20200217171921/https://sa.bbc.co.uk/bbc/"+o[1]+"/s":"//web.archive.org/web/20200217171921/https://sa.bbc.co.uk/bbc/test/s";t.addCollector({name:"default",url:e,separator:"&"});var s="unknown";t.setCountername(s),window.istats_countername&&t.setCountername(window.istats_countername),t.addLabels("ml_name=webmodule&ml_version=0.0.2-441.b5f0561&blq_e=orbit&blq_r=orbit&blq_s=orbit&blq_v=default&language=en")}var o});</script><link rel="stylesheet" href="https://web.archive.org/web/20200217171921cs_/https://static.files.bbci.co.uk/account/id-cta/1.36.1/style/id-cta.css"><script type="text/javascript">(function() {if (!window.require) {throw new Error('idcta: could not find require module');}if (typeof(map) == 'undefined') {var map = {};}if (!!document.createElementNS && !!document.createElementNS('http://www.w3.org/2000/svg', 'svg').createSVGRect) {document.documentElement.className += ' id-svg';}var ptrt = new RegExp("[\\?&]ptrt=([^&]*)").exec(document.location.href);var ENDPOINT_URL = 'https://web.archive.org/web/20200217171921/https://idcta.api.bbc.co.uk';var ENDPOINT_CONFIG = ('/idcta/config?callback=&ptrt=' + encodeURIComponent((ptrt ? ptrt[1] : document.location.href))).replace(/\&/g, '&');var ENDPOINT_TRANSLATIONS = '/idcta/translations?callback=';function hasPromise() {var P = window.Promise;var promiseToString = null;if (P) {try {promiseToString = Object.prototype.toString.call(P.resolve());} catch(e) {/*silently ignored*/}}return (promiseToString === '[object Promise]' && !P.cast);}if (hasPromise()) {define('idcta/es6-promise', function() {return window.Promise;});define('idcta-v2/es6-promise', function() {return window.Promise;});}map['idcta-v2'] = 'https://web.archive.org/web/20200217171921/https://static.files.bbci.co.uk/account/id-cta/1.36.1/modules/idcta-v2';map['idcta-v2/config'] = ENDPOINT_URL + ENDPOINT_CONFIG;map['idcta-v2/translations'] = ENDPOINT_URL + ENDPOINT_TRANSLATIONS;map['idcta'] = 'https://web.archive.org/web/20200217171921/https://static.files.bbci.co.uk/account/id-cta/1.8.2/modules/idcta';map['idcta-v2/idcta-1'] = 'https://web.archive.org/web/20200217171921/https://static.files.bbci.co.uk/account/id-cta/1.36.1/modules/idcta-v2/dist/idcta-1.min';map['idcta-v2/experiment-snippet'] = 'https://web.archive.org/web/20200217171921/https://cdn.optimizely.com/public/4621041136/s/idcta_live';const idctaShim = {deps: ['idcta-v2/idcta-1'],};require({shim: {'idcta-v2/statusbar': idctaShim,'idcta-v2/id-config': idctaShim},map: {'*': {'idcta/idcta-1': 'idcta-v2/idcta-1','idcta': 'idcta-v2',}},paths: map});window.idctaBaseUrl = ENDPOINT_URL;define('idcta/config', ['idcta-v2/config'], function(data) {return data;});define('idcta/translations', ['idcta-v2/translations'], function(data) {return data;});})();</script> <script type="text/javascript">/*<![CDATA[*/ var _sf_startpt = (new Date()).getTime(); /*]]>*/</script><style type="text/css">.bbccom_display_none{display:none;}</style><script type="text/javascript">/*<![CDATA[*/ var bbcdotcomConfig, googletag = googletag || {}; googletag.cmd = googletag.cmd || [], bbcdotcomScripts = [], tp = window.tp || []; var bbcdotcom = false; (function(){ if(typeof require !== 'undefined') { require({ paths:{ "bbcdotcom":"https://web.archive.org/web/20200217171921/https://static.bbc.co.uk/bbcdotcom/3.6.969/script" } }); } })(); /*]]>*/</script><script type="text/javascript">/*<![CDATA[*/ var bbcdotcom = { adverts: { keyValues: { set: function() {} } }, advert: { write: function () {}, show: function () {}, isActive: function () { return false; }, layout: function() { return { reset: function() {} } } }, config: { init: function() {}, isActive: function() {}, setSections: function() {}, isAdsEnabled: function() {}, setAdsEnabled: function() {}, isAnalyticsEnabled: function() {}, setAnalyticsEnabled: function() {}, setAssetPrefix: function() {}, setFlagpoles: function() {}, setVersion: function () {}, setJsPrefix: function() {}, setSwfPrefix: function() {}, setCssPrefix: function() {}, setConfig: function() {}, getAssetPrefix: function() {}, getJsPrefix: function () {}, getSwfPrefix: function () {}, getCssPrefix: function () {}, isOptimizelyEnabled: function() {} }, survey: { init: function(){ return false; } }, data: {}, init: function() {}, objects: function(str) { return false; }, locale: { set: function() {}, get: function() {} }, setAdKeyValue: function() {}, utils: { addEvent: function() {}, addHtmlTagClass: function() {}, log: function () {} }, addLoadEvent: function() {} }; /*]]>*/</script><script type="text/javascript">/*<![CDATA[*/ (function(){ if (typeof orb !== 'undefined' && typeof orb.fig === 'function') { if (orb.fig('ad') && orb.fig('uk') == 0) { bbcdotcom.data = { ads: (orb.fig('ad') ? 1 : 0), stats: (orb.fig('uk') == 0 ? 1 : 0), statsProvider: orb.fig('ap') }; } } else { document.write('<script type="text/javascript" src="https://web.archive.org/web/20200217171921/https://www.bbc.com/wwscripts/data">\x3C/script>'); } })(); /*]]>*/</script><script type="text/javascript">/*<![CDATA[*/ (function(){ if (typeof orb === 'undefined' || typeof orb.fig !== 'function') { bbcdotcom.data = { ads: bbcdotcom.data.a, stats: bbcdotcom.data.b, statsProvider: bbcdotcom.data.c }; } if (bbcdotcom.data.ads == 1) { document.write('<script type="text/javascript" src="https://web.archive.org/web/20200217171921/https://www.bbc.com/wwscripts/flag">\x3C/script>'); } })(); /*]]>*/</script><script type="text/javascript">/*<![CDATA[*/ (function(){ if (window.bbcdotcom && (typeof bbcdotcom.flag == 'undefined' || (typeof bbcdotcom.data.ads !== 'undefined' && bbcdotcom.flag.a != 1))) { bbcdotcom.data.ads = 0; } if (/[?|&]ads/.test(window.location.href) || /(^|; )ads=on; /.test(document.cookie) || /; ads=on(; |$)/.test(document.cookie)) { bbcdotcom.data.ads = 1; bbcdotcom.data.stats = 1; } if (window.bbcdotcom && (bbcdotcom.data.ads == 1 || bbcdotcom.data.stats == 1)) { bbcdotcom.assetPrefix = "https://web.archive.org/web/20200217171921/https://static.bbc.co.uk/bbcdotcom/3.6.969/"; if (/(sandbox|int)(.dev)*.bbc.co*/.test(window.location.href) || /[?|&]ads-debug/.test(window.location.href) || document.cookie.indexOf('ads-debug=') !== -1) { document.write('<script type="text/javascript" src="https://web.archive.org/web/20200217171921/https://static.bbc.co.uk/bbcdotcom/3.6.969/script/dist/bbcdotcom.dev.js">\x3C/script>'); } else { document.write('<script type="text/javascript" src="https://web.archive.org/web/20200217171921/https://static.bbc.co.uk/bbcdotcom/3.6.969/script/dist/bbcdotcom.js">\x3C/script>'); } } })(); /*]]>*/</script><script type="text/javascript">if (window.bbcdotcom && bbcdotcom.data.stats == 1) { document.write('<link rel="dns-prefetch" href="//web.archive.org/web/20200217171921/https://secure-us.imrworldwide.com/">'); document.write('<link rel="dns-prefetch" href="//web.archive.org/web/20200217171921/https://me-cdn.effectivemeasure.net/">'); document.write('<link rel="dns-prefetch" href="//web.archive.org/web/20200217171921/https://ssc.api.bbc.com/">'); } if (window.bbcdotcom && bbcdotcom.data.ads == 1) { document.write('<link rel="dns-prefetch" href="//web.archive.org/web/20200217171921/https://www.googletagservices.com/">'); document.write('<link rel="dns-prefetch" href="//web.archive.org/web/20200217171921/https://bbc.gscontxt.net/">'); document.write('<link rel="dns-prefetch" href="//web.archive.org/web/20200217171921/https://tags.crwdcntrl.net/">'); document.write('<link rel="dns-prefetch" href="//web.archive.org/web/20200217171921/https://ad.crwdcntrl.net/">'); }</script><script type="text/javascript">if (window.bbcdotcom && bbcdotcom.data.ads == 1) { document.write('<meta name="google-site-verification" content="auTeTTwSt_KBY_4iDoR00Lwb7-qzx1IgzJy6ztaWgEI" />'); }</script><script type="text/javascript">/*<![CDATA[*/ (function(){ var GDPR_COUNTRIES = ['AT', 'BE', 'BG', 'HR', 'CY', 'CZ', 'DK', 'EE', 'FI', 'FR', 'DE', 'GR', 'HU', 'IE', 'IT', 'LV', 'LT', 'LU', 'MT', 'NL', 'PL', 'PT', 'RO', 'SK', 'SI', 'ES', 'SE', 'IS', 'LI', 'NO', 'CH']; if (window.bbcdotcom && (bbcdotcom.data.ads == 1 || bbcdotcom.data.stats == 1)) { bbcdotcomConfig = {"adFormat":"standard","adKeyword":"","adMode":"smart","adsEnabled":true,"appAnalyticsSections":"","asyncEnabled":true,"disableInitialLoad":false,"advertInfoPageUrl":"https:\/\/web.archive.org\/web\/20200217171921\/https:\/\/www.bbc.com\/privacy\/cookies\/international\/","advertisementText":"Advertisement","analyticsEnabled":true,"sherlockEnabled":false,"appName":"","assetPrefix":"https:\/\/web.archive.org\/web\/20200217171921\/https:\/\/static.bbc.co.uk\/bbcdotcom\/3.6.969\/","customAdParams":[],"customStatsParams":[],"headline":"","id":"","inAssociationWithText":"in association with","keywords":"","language":"","orbTransitional":false,"optimizelyEnabled":true,"palEnv":"live","productName":"","sections":[],"comScoreEnabled":true,"comscoreSite":"bbc","comscoreID":"19293874","comscorePageName":"","slots":"","sponsoredByText":"is sponsored by","adsByGoogleText":"Ads by Google","summary":"","type":"","features":{"testfeature":{"name":"testfeature","envs":["sandbox","int","test"],"on":true,"options":{},"override":null},"lxadverts":{"name":"lxadverts","envs":[],"on":true,"options":{},"override":null}},"staticBase":"\/bbcdotcom","staticHost":"https:\/\/web.archive.org\/web\/20200217171921\/https:\/\/static.bbc.co.uk","staticVersion":"3.6.969","staticPrefix":"https:\/\/web.archive.org\/web\/20200217171921\/https:\/\/static.bbc.co.uk\/bbcdotcom\/3.6.969","dataHttp":"tps.bbc.com","dataHttps":"www.bbc.com","flagHttp":"www.bbc.co.uk","flagHttps":"www.bbc.co.uk","analyticsHttp":"sa.bbc.com","analyticsHttps":"ssa.bbc.com"}; bbcdotcom.config.init(bbcdotcomConfig, bbcdotcom.data, window.location, window.document); bbcdotcom.config.setFlagpoles(bbcdotcom.flag || {}); bbcdotcom.config.setAssetPrefix("https://web.archive.org/web/20200217171921/https://static.bbc.co.uk/bbcdotcom/3.6.969/"); bbcdotcom.config.setVersion("3.6.969"); if (window.bbcuser && window.bbcuser.getCountry && typeof(window.bbcuser.getCountry) === 'function') { window.bbcuser.getCountry().then(function(countryCode) { var isEU = countryCode ? GDPR_COUNTRIES.indexOf(countryCode.toUpperCase()) !== -1 : false; bbcdotcom.config.setEU(isEU); }); } else if (window.orb && window.orb.fig && typeof(window.orb.fig) === 'function') { bbcdotcom.config.setEU(window.orb.fig('eu')); } document.write(''); document.write(''); document.write(''); if (/[?|&]ex-dp/.test(window.location.href) || document.cookie.indexOf('ex-dp=') !== -1) { bbcdotcom.utils.addHtmlTagClass('bbcdotcom-ex-dp'); } } })(); /*]]>*/</script><script type="text/javascript">var initOptimizely = (function(isEnabled){ if(!isEnabled) return; var logger = window.bbcdotcom.Logger('bbcdotcom:head:optimizely'); /* Allow Optimizely in these paths */ var allowPaths = ['/', '/wwhp']; /* Only run on optimizely on homepage */ if (bbcdotcom.utils && allowPaths.indexOf(window.location.pathname) !== -1){ /* set correct OptimizelyURL for prod or sandbox */ var optimizelyURL = "https://web.archive.org/web/20200217171921/https://cdn.optimizely.com/public/4621041136/s/bbccom_sandbox.js"; if(window.location.hostname === 'www.bbc.com') { optimizelyURL = "https://web.archive.org/web/20200217171921/https://cdn.optimizely.com/public/4621041136/s/bbccom_prod.js"; } /* Set cookie to 1 year */ window['optimizely'] = window['optimizely'] || []; window['optimizely'].push({ "type": "cookieExpiration", "cookieExpirationDays": 365 }); document.write('<script type="text/javascript" src="'+optimizelyURL+'">\x3C/script>'); } })( bbcdotcom.config.isOptimizelyEnabled() );</script><script type="text/javascript">/*<![CDATA[*/ if ( window.bbcdotcom && bbcdotcom.data && bbcdotcom.data.ads && bbcdotcom.data.ads == 1 && bbcdotcom.config && bbcdotcom.config.isGrapeshotEnabled && bbcdotcom.config.isGrapeshotEnabled() && bbcdotcom.config.isWorldService && !bbcdotcom.config.isWorldService() ) { var gs_channels="DEFAULT"; (function () { var gsurl = window.location.href.split("?")[0]; bbcdotcomScripts.push({src:'https://web.archive.org/web/20200217171921/https://bbc.gscontxt.net/?url='+encodeURIComponent(gsurl)}); })(); } /*]]>*/</script><script type="text/javascript">/*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.config && bbcdotcom.config.isLotameActive && bbcdotcom.config.isLotameActive()&& bbcdotcom.config.isLotameEnabled && bbcdotcom.config.isLotameEnabled()){ (function () { var clientId, lotameUrl, lotameAudienceUrl; clientId = (bbcdotcom.config.isWorldService && bbcdotcom.config.isWorldService()) ? '10826' : '10816'; lotameUrl = 'https://web.archive.org/web/20200217171921/https://tags.crwdcntrl.net/c/'+clientId+'/cc.js?ns='+clientId; lotameAudienceUrl = 'https://web.archive.org/web/20200217171921/https://ad.crwdcntrl.net/5/c=10815/pe=y/var=ccauds'; bbcdotcomScripts.push({src:lotameUrl,id:"LOTCC"+clientId}); bbcdotcomScripts.push({src:lotameAudienceUrl}); })(); } /*]]>*/</script><script type="text/javascript">/*<![CDATA[*/ /** * ASYNC waits to make any gpt requests until the bottom of the page */ if ( window.bbcdotcom && bbcdotcom.data && bbcdotcom.data.ads && bbcdotcom.data.ads == 1 && bbcdotcom.config && bbcdotcom.config.isAsync && bbcdotcom.config.isAsync() ) { (function () { bbcdotcomScripts.push({src:'https://web.archive.org/web/20200217171921/https://securepubads.g.doubleclick.net/tag/js/gpt.js'}); })(); } /*]]>*/</script><script type="text/javascript">/*<![CDATA[*/ /* Load Lotame, Grapeshot and GPT without blocking rendering but executing in order */ if ( bbcdotcomScripts && bbcdotcomScripts.length > 0 ) { (function () { bbcdotcomScripts.forEach(function(item) { var script = document.createElement('script'); script.async = false; if(item.id) script.id = item.id; script.src = item.src; document.head.appendChild(script); }); })(); } /*]]>*/</script><script type="text/javascript">/*<![CDATA[*/ (function() { window.bbcdotcom.head = true; }()); /*]]>*/</script><script type="text/javascript">// Globally available search context window.SEARCHBOX={"variant":"default","locale":"en","feature":"","navSearchboxStaticPrefix":"https://web.archive.org/web/20200217171921/https://nav.files.bbci.co.uk/searchbox/c3832368b067cb95b274bc5796e4249c/","searchboxAppStaticPrefix":"https://web.archive.org/web/20200217171921/https://nav.files.bbci.co.uk/searchbox/c3832368b067cb95b274bc5796e4249c/drawer","searchFormHtml":"<div tabindex=\"-1\" data-reactroot=\"\" data-reactid=\"1\" data-react-checksum=\"842287743\"><div data-reactid=\"2\"><section class=\"se-searchbox-panel\" data-reactid=\"3\"><div class=\"se-g-wrap\" data-reactid=\"4\"><div class=\"se-g-layout\" data-reactid=\"5\"><div class=\"se-g-layout__item se-searchbox-title\" aria-hidden=\"true\" data-reactid=\"6\">search</div><div class=\"se-g-layout__item se-searchbox\" data-reactid=\"7\"><form accept-charset=\"utf-8\" id=\"searchboxDrawerForm\" method=\"get\" action=\"https://search.bbc.co.uk/search\" data-reactid=\"8\"><label class=\"se-searchbox__input\" for=\"se-searchbox-input-field\" data-reactid=\"9\"><span class=\"se-sr-only\" data-reactid=\"10\">Search Term</span><input type=\"text\" name=\"q\" value=\"\" id=\"se-searchbox-input-field\" class=\"se-searchbox__input__field\" maxlength=\"512\" autocomplete=\"off\" autocorrect=\"off\" autocapitalize=\"off\" spellcheck=\"false\" tabindex=\"0\" data-reactid=\"11\"/></label><input type=\"hidden\" name=\"scope\" value=\"\" data-reactid=\"12\"/><button type=\"submit\" class=\"se-searchbox__submit\" tabindex=\"0\" data-bbc-container=\"se-searchbox-panel\" data-bbc-title=\"search-icon\" data-bbc-metadata=\"{"PAR":"form::1","CHD":"button::1"}\" data-reactid=\"13\">Search</button><button type=\"button\" class=\"se-searchbox__clear se-searchbox__clear--visible\" tabindex=\"0\" data-bbc-container=\"se-searchbox-panel\" data-bbc-title=\"clear-icon\" data-bbc-metadata=\"{"PAR":"form::1","CHD":"button::2"}\" data-reactid=\"14\">Close</button></form></div></div></div></section><div aria-live=\"polite\" aria-atomic=\"true\" class=\"se-suggestions-container\" data-reactid=\"15\"><section class=\"se-g-wrap\" data-reactid=\"16\"></section></div></div></div>","searchScopePlaceholder":"","searchScopeParam":"","searchScopeTemplate":"","searchPlaceholderWrapperStart":"","searchPlaceholderWrapperEnd":""}; window.SEARCHBOX.suppress = false; window.SEARCHBOX.searchScope = SEARCHBOX.searchScopeTemplate.split('-')[0];</script><link rel="stylesheet" href="https://web.archive.org/web/20200217171921cs_/https://nav.files.bbci.co.uk/searchbox/c3832368b067cb95b274bc5796e4249c/css/main.css"><script type="text/javascript">require.config({ "paths": { "orb/async/_footerpromo": 'https://web.archive.org/web/20200217171921/https://nav.files.bbci.co.uk/navpromo/14e5b4661a09bc7754808edab113a159/js/async/_footerpromo' } });</script> <script type="text/javascript">"use strict";!function(){window.__reverbStaticLocation="https://web.archive.org/web/20200217171921/https://mybbc-analytics.files.bbci.co.uk/reverb-client-js/",window.__smarttagVersion="5.18.2",window.__reverb={},window.__reverb.__reverbLoadedPromise=new Promise(function(e,n){window.__reverb.__resolveReverbLoaded=e,window.__reverb.__rejectReverbLoaded=n}),window.__reverb.__reverbTimeout=setTimeout(function(){window.__reverb.__rejectReverbLoaded()},5e3);var n=function(r,d){window.__reverb.__reverbLoadedPromise.then(function(e){if(r&&r.detail){var n=r.detail.label,t=r.detail.type,i=r.detail.elem,o=r.detail.originalEvent;r.detail.isClick&&(d=r.detail.isClick),e.userActionEvent(t,n,r.detail,i,o,d)}},function(){console.log("Reverb failed to load. Event not sent")})};document.addEventListener("bbc-user-event",function(e){n(e,!1)}),document.addEventListener("bbc-user-click",function(e){n(e,!0)}),document.addEventListener("bbc-page-updated",function(){window.__reverb.__reverbLoadedPromise.then(function(e){e.initialise().then(function(){return e.viewEvent()})},function(){console.log("Reverb failed to load. Event not sent")})})}();</script><script type="text/javascript" src="https://web.archive.org/web/20200217171921js_/https://mybbc-analytics.files.bbci.co.uk/reverb-client-js/reverb-1.3.0.js" async=""></script> <script type="text/javascript"> require.config({ "baseUrl": "//web.archive.org/web/20200217171921/https://static.bbci.co.uk/", "paths": { "jquery-1": "//web.archive.org/web/20200217171921/https://static.bbci.co.uk/frameworks/jquery/0.3.0/sharedmodules/jquery-1.7.2", "jquery-1.9": "//web.archive.org/web/20200217171921/https://static.bbci.co.uk/frameworks/jquery/0.4.1/sharedmodules/jquery-1.9.1", "swfobject-2": "//web.archive.org/web/20200217171921/https://static.bbci.co.uk/frameworks/swfobject/0.1.10/sharedmodules/swfobject-2", "bump-3": "//web.archive.org/web/20200217171921/https://emp.bbci.co.uk/emp/bump-3/bump-3" } }); </script> <title> What do I need to know about cookies? - Using the BBC </title> <meta name="description" content="Find out about the different types of cookies and what they鈥檙e for."> <meta name="keywords" content="privacy,cookies,cookie,personal,data"> <meta property="og:type" content="website"/> <meta property="og:description" content="Find out about the different types of cookies and what they鈥檙e for."/> <meta property="og:site_name" content="What do I need to know about cookies? - Using the BBC"/> <meta property="og:locale" content="en_GB"/> <meta charset="utf-8"/> <link href="/web/20200217171921cs_/https://www.bbc.co.uk/usingthebbc/static/css/app.css?ver=8.5.1" rel="stylesheet"/> <link href="/web/20200217171921cs_/https://www.bbc.co.uk/usingthebbc/static/css/mybbc-privacy-hub.min.css?ver=1.0.20180725" rel="stylesheet"/> <script type="text/javascript"> window.usingthebbcIDCTA = { locale: 'en_GB', idcta: 'https://web.archive.org/web/20200217171921/https://ssl.bbc.co.uk/idcta/init', notifications: { get: 'https://web.archive.org/web/20200217171921/https://preferences.notifications.api.bbc.co.uk/subscriptions', set: 'https://web.archive.org/web/20200217171921/https://preferences.notifications.api.bbc.co.uk/preference' }, url: 'https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/what-do-i-need-to-know-about-cookies/', renderIDCTAButton: false }; </script> <script src="/web/20200217171921js_/https://www.bbc.co.uk/usingthebbc/static/js/script.min.js" type="text/javascript"></script> </head> <body class="page-explainer"> <noscript><p style="position: absolute; top: -999em"><img src="https://web.archive.org/web/20200217171921im_/https://a1.api.bbc.co.uk/hit.xiti?&col=1&from=p&ptag=js&s=598253&p=unknown&x2=[responsive]&x3=[bbc_website]&x4=[en]&x8=[reverb-1.3.0-nojs]&x11=[]&x12=[]" height="1" width="1" alt=""></p></noscript> <div id="bbccom_interstitial_ad" class="bbccom_display_none"></div><div id="bbccom_interstitial" class="bbccom_display_none"><script type="text/javascript">/*<![CDATA[*/ (function() { if (window.bbcdotcom && bbcdotcom.config.isActive('ads')) { googletag.cmd.push(function() { googletag.display('bbccom_interstitial'); }); } }()); /*]]>*/</script></div><div id="bbccom_wallpaper_ad" class="bbccom_display_none"></div><div id="bbccom_wallpaper" class="bbccom_display_none"><script type="text/javascript">/*<![CDATA[*/ (function() { var wallpaper; if (window.bbcdotcom && bbcdotcom.config.isActive('ads')) { if (bbcdotcom.config.isAsync()) { googletag.cmd.push(function() { googletag.display('bbccom_wallpaper'); }); } else if (typeof googletag !== "undefined" && typeof googletag.display === "function") { googletag.display("wallpaper"); } wallpaper = bbcdotcom.adverts.adRegister.getAd('wallpaper'); } }()); /*]]>*/</script></div><script type="text/javascript">/*<![CDATA[*/ (function() { if (window.bbcdotcom && bbcdotcom.config.isActive('ads')) { document.write(unescape('%3Cscript id="gnlAdsEnabled" class="bbccom_display_none"%3E%3C/script%3E')); } if (window.bbcdotcom && bbcdotcom.config.isActive('analytics')) { document.write(unescape('%3Cscript id="gnlAnalyticsEnabled" class="bbccom_display_none"%3E%3C/script%3E')); } }()); /*]]>*/</script><script type="text/javascript">/*<![CDATA[*/ (function() { window.bbcdotcom.bodyFirst = true; }()); /*]]>*/</script> <div id="cookiePrompt"></div> <header id="orb-banner" role="banner" aria-label="BBC"><div id="orb-header" class="orb-nav-pri orb-nav-pri-white orb-nav-empty" dir="ltr"><div class="orb-nav-pri-container b-r b-g-p"><div class="orb-nav-section orb-nav-blocks"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/">Homepage</a></div><section><div class="orb-skip-links"><h2>Accessibility links</h2><ul><li><a href="#orb-modules">Skip to content</a></li><li><a id="orb-accessibility-help" href="/web/20200217171921/https://www.bbc.co.uk/accessibility/">Accessibility Help</a></li></ul></div></section><div id="mybbc-wrapper" class="orb-nav-section orb-nav-id orb-nav-focus orb-nav-id-default"><div id="idcta-statusbar" class="orb-nav-section orb-nav-focus" data-bbc-container="id-cta" data-bbc-event-type="click" data-bbc-ignore-views="1" data-bbc-metadata="{"id-cta-type": "statusbar-orb"}" data-bbc-source="responsive_web" data-bbc-title="id-cta-sign-in"><a id="idcta-link" href="https://web.archive.org/web/20200217171921/https://account.bbc.com/account"><span id="idcta-username">BBC Account</span></a></div><script type="text/javascript">require(['idcta/statusbar'], function (statusbar) {new statusbar.Statusbar({id: 'idcta-statusbar', publiclyCacheable: true});});</script><a id="notification-link" class="js-notification-link animated three" href="#" style="display: none"><span class="hidden-span">Notifications</span><div class="notification-link--triangle"></div><div class="notification-link--triangle"></div><span id="not-num"></span></a></div><nav role="navigation" aria-label="BBC" class="orb-nav"><div class="orb-nav-section orb-nav-links orb-nav-focus" id="orb-nav-links"><ul><li class="orb-nav-home"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/">Home</a></li><li class="orb-nav-news"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/news">News</a></li><li class="orb-nav-sport"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/sport">Sport</a></li><li class="orb-nav-weather"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/weather">Weather</a></li><li class="orb-nav-iplayer"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/iplayer">iPlayer</a></li><li class="orb-nav-sounds"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/sounds">Sounds</a></li><li class="orb-nav-cbbc"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/cbbc">CBBC</a></li><li class="orb-nav-cbeebies"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/cbeebies">CBeebies</a></li><li class="orb-nav-food"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/food">Food</a></li><li class="orb-nav-bitesize"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/bitesize">Bitesize</a></li><li class="orb-nav-arts"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/arts">Arts</a></li><li class="orb-nav-taster"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/taster">Taster</a></li><li class="orb-nav-local"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/news/localnews">Local</a></li><li class="orb-nav-tv"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/tv">TV</a></li><li class="orb-nav-radio"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/radio">Radio</a></li><li class="orb-nav-three"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/bbcthree">Three</a></li><li id="orb-nav-more" style="width: 88px" aria-controls="orb-panel-more"><a href="#orb-footer" data-alt="More" class="istats-notrack">Menu<span class="orb-icon orb-icon-arrow"></span></a></li></ul></div></nav><div class="orb-nav-section orb-nav-search"><a class="orb-search__button" href="https://web.archive.org/web/20200217171921/https://search.bbc.co.uk/search" title="Search the BBC">Search</a><form class="b-f" id="orb-search-form" role="search" method="get" action="https://web.archive.org/web/20200217171921/https://search.bbc.co.uk/search" accept-charset="utf-8"><div><label for="orb-search-q">Search the BBC</label><input id="orb-search-q" type="text" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false" name="q" placeholder="Search"><button id="orb-search-button" class="orb-search__button">Search the BBC</button><input type="hidden" name="suggid" id="orb-search-suggid"></div></form></div></div><div id="orb-panels"></div></div></header>  <div id="orb-modules"> <nav class="navbar navbar-subject"> <div class="container-fluid"> <div class="navbar-tabs"> <div class="navbar-item"> <div class="navbar-header"> <a class="navbar-brand gel-great-primer-bold gel-header-link text-color-white" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/" title="Using the BBC">Using the BBC</a> <button aria-expanded="true" class="navbar-toggle" type="button"><span class="icon-label gel-long-primer">Menu</span></button> </div> </div> <div class="navbar-item navbar-list" aria-expanded="false">  <ul class="nav navbar-mobile"> <li class="dropdown"><a class="gel-brevier-bold" data-id="9695fab2-d67d-4d2b-93be-39d7a74967dc" href="#" title="Your Information & Privacy">Your Information & Privacy <span class="caret"></span></a><ul id="9695fab2-d67d-4d2b-93be-39d7a74967dc" class="dropdown-menu" aria-expanded="false"> <li><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/privacy/" title="Your Information & Privacy Home">Your Information & Privacy Home</a></li><li><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/privacy/what-are-you-doing-with-my-data/" title="Personal Information">Personal Information</a></li><li><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/privacy/privacy-promise/" title="Privacy and Your Activity">Privacy and Your Activity</a></li><li><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/privacy/keeping-my-children-safe-online/" title="Children and Safety">Children and Safety</a></li></ul></li><li class="dropdown open"><a class="gel-brevier-bold active" data-id="eb47bba9-bd19-496a-86c0-e7d327b5a5ad" href="#" title="Cookie & Browser Settings">Cookie & Browser Settings <span class="caret"></span></a><ul id="eb47bba9-bd19-496a-86c0-e7d327b5a5ad" class="dropdown-menu" aria-expanded="false"> <li><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/" title="Cookie & Browser Settings Home">Cookie & Browser Settings Home</a></li><li><a class="gel-brevier-bold active" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/what-do-i-need-to-know-about-cookies/" title="About Cookies">About Cookies</a></li><li><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/how-can-i-change-my-bbc-cookie-settings/" title="Cookie Settings">Cookie Settings</a></li></ul></li><li class="dropdown"><a class="gel-brevier-bold" data-id="d56a7dec-4194-4b04-8aa2-1ef3ea347c8a" href="#" title="Creating & Using Your Account">Creating & Using Your Account <span class="caret"></span></a><ul id="d56a7dec-4194-4b04-8aa2-1ef3ea347c8a" class="dropdown-menu" aria-expanded="false"> <li><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/account/" title="Creating & Using Your Account Home">Creating & Using Your Account Home</a></li><li><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/account/what-is-a-bbc-account/" title="Help Registering & Signing In">Help Registering & Signing In</a></li><li><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/account/adding-things-on-the-bbc/" title="Account Features">Account Features</a></li><li><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/account/how-is-the-bbc-personalised-to-me/" title="Personalisation & Recommendations">Personalisation & Recommendations</a></li></ul></li><li class="dropdown"><a class="gel-brevier-bold" data-id="316b35c9-45f4-482f-9869-98765474c4a2" href="#" title="Terms of Use">Terms of Use <span class="caret"></span></a><ul id="316b35c9-45f4-482f-9869-98765474c4a2" class="dropdown-menu" aria-expanded="false"> <li><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/terms/" title="Terms of Use Home">Terms of Use Home</a></li><li><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/terms/do-i-need-a-tv-licence/" title="Accessing the BBC">Accessing the BBC</a></li><li><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/terms/what-are-the-rules-for-commenting/" title="Joining in">Joining in</a></li><li><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/terms/can-i-use-bbc-content/" title="Using BBC Content">Using BBC Content</a></li></ul></li></ul>   <div class="navbar-desktop"> <ul class="nav navbar-nav"> <li class=""><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/privacy/" title="Your Information & Privacy">Your Information & Privacy <span class="caret"></span></a></li><li class="active"><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/" title="Cookie & Browser Settings">Cookie & Browser Settings <span class="caret"></span></a></li><li class=""><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/account/" title="Creating & Using Your Account">Creating & Using Your Account <span class="caret"></span></a></li><li class=""><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/terms/" title="Terms of Use">Terms of Use <span class="caret"></span></a></li> </ul> </div>  </div> </div> </div> </nav> <nav class="navbar navbar-topic"> <div class="container-fluid"> <div class="navbar-tabs"><div class="navbar-item"><a class="navbar-brand gel-double-pica-bold gel-header-link text-color-white" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/" title="Cookie & Browser Settings">Cookie & Browser Settings</a></div> <div class="navbar-item navbar-list"> <ul class="navbar-nav"> <li class="active"><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/what-do-i-need-to-know-about-cookies/" title="About Cookies">About Cookies</a></li><li><a class="gel-brevier-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/how-can-i-change-my-bbc-cookie-settings/" title="Cookie Settings">Cookie Settings</a></li> </ul> </div></div> </div> </nav> <section class="bg-color-light grid-padding"> <div class="gel-wrap"> <div class="gel-layout gel-background-white"> <div class="gel-layout__item gel-bp-m-1/3 gel-bp-l-1/4"> <div data-id="7c2c9699-96bd-4914-91c1-cb9145c1d9da" class="navbar-sidebar"><h2 class="gel-pica-bold icons icon-cookies"><a href="#" title="About Cookies">About Cookies <span class="caret"></span></a></h2><ul class="list-vertical"><li data-parent-id="" class="active"><a href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/what-do-i-need-to-know-about-cookies/" class="gel-pica-bold" title="What do I need to know about cookies?">What do I need to know about cookies?</a></li><li data-parent-id="" class=""><a href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/how-does-the-bbc-use-cookies/" class="gel-pica-bold" title="How does the BBC use cookies?">How does the BBC use cookies?</a></li><li data-parent-id="" class=""><a href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/what-happens-if-third-party-cookies-are-disabled-on-my-browser/" class="gel-pica-bold" title="What happens if third party cookies are disabled on my browser?">What happens if third party cookies are disabled on my browser?</a></li><li data-parent-id="" class=""><a href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/how-does-the-bbc-use-cookies-for-advertising/" class="gel-pica-bold" title="How does the BBC use cookies for advertising?">How does the BBC use cookies for advertising?</a></li></ul></div> </div> <div class="gel-layout__item gel-bp-m-2/3 gel-bp-l-3/4 gel-layout__item-nopadding"> <article id="2951cf5e-8cae-415c-89c3-c14a231f8640" class="gel-explainer-ops"> <h1 class="gel-trafalgar-bold utb-heading-color">What do I need to know about cookies?</h1> <p class="gel-timestamp gel-brevier">Page updated: 13 August 2019</p>  <div class="gel-pica"> <div class="gel-explainer--generic"> <div class="gel-copy"> <p>Cookies are small text files which are transferred to your computer or mobile when you visit a website or app.</p> <p>We use them to:</p> <ul> <li>Remember information about you, so you don’t have to give it to us again. And again. And again</li> <li>Keep you signed in, even on different devices</li> <li>Help us understand how people are using our services, so we can make them better</li> <li>To deliver advertising to websites outside of the UK</li> <li>Help us personalise the BBC to you by remembering your preferences and settings. And your progress, so you can pause and pick up where you left off watching a programme, even on a different device</li> <li>To find out if our emails have been read and if you find them useful</li> </ul> <p>You can <a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/how-can-i-change-my-bbc-cookie-settings/">change your BBC cookie settings</a> at any time. And you can find out how to <a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/how-can-i-stop-my-internet-browser-tracking-my-info/">stop your browser tracking your info here</a>.</p> <p>There are different types of cookies:</p> </div> </div> </div> <div class="gel-explainer--diagnostic gel-pica" id="c9e77e693f22d5c608373254a030f410"> <h2 class="gel-great-primer-bold"><a href="#c9e77e693f22d5c608373254a030f410" class="toggle" data-id="c9e77e693f22d5c608373254a030f410">First-party cookies<span class="gel-icon"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="/web/20200217171921im_/https://www.bbc.co.uk/usingthebbc/static/images/gel-icons-core-set.svg#gel-icon-down"></use></svg></span></a></h2> <div class="expand"> <div class="gel-copy"> <p>These cookies are set by the website you’re visiting. And only that website can read them.</p> </div> </div> </div> <div class="gel-explainer--diagnostic gel-pica" id="4568fdc96072b759f84e66db6f089095"> <h2 class="gel-great-primer-bold"><a href="#4568fdc96072b759f84e66db6f089095" class="toggle" data-id="4568fdc96072b759f84e66db6f089095">Third-party cookies<span class="gel-icon"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="/web/20200217171921im_/https://www.bbc.co.uk/usingthebbc/static/images/gel-icons-core-set.svg#gel-icon-down"></use></svg></span></a></h2> <div class="expand"> <div class="gel-copy"> <p>These cookies are set by someone other than the owner of the website you’re visiting. Some BBC web pages may also contain content from other sites like YouTube or Flickr, which may set their own cookies. Also, if you share a link to a BBC page, the service you share it on (for example, Facebook) may set a cookie on your browser. We have no control over third-party cookies - <a href="https://web.archive.org/web/20200217171921/http://www.bbc.co.uk/usingthebbc/cookies/what-happens-if-third-party-cookies-are-disabled-on-my-browser/">you can turn them off</a>, but not through us.</p> </div> </div> </div> <div class="gel-explainer--diagnostic gel-pica" id="656598ff5e9df8117cfcc4ffdc7d8717"> <h2 class="gel-great-primer-bold"><a href="#656598ff5e9df8117cfcc4ffdc7d8717" class="toggle" data-id="656598ff5e9df8117cfcc4ffdc7d8717">Session cookies<span class="gel-icon"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="/web/20200217171921im_/https://www.bbc.co.uk/usingthebbc/static/images/gel-icons-core-set.svg#gel-icon-down"></use></svg></span></a></h2> <div class="expand"> <div class="gel-copy"> <p>These cookies only last as long as your online session, and disappear from your computer or device when you close your browser (like Internet Explorer or Safari).</p> </div> </div> </div> <div class="gel-explainer--diagnostic gel-pica" id="cbe34e8f914ee74aa902e60bfc80b4f0"> <h2 class="gel-great-primer-bold"><a href="#cbe34e8f914ee74aa902e60bfc80b4f0" class="toggle" data-id="cbe34e8f914ee74aa902e60bfc80b4f0">Persistent cookies<span class="gel-icon"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="/web/20200217171921im_/https://www.bbc.co.uk/usingthebbc/static/images/gel-icons-core-set.svg#gel-icon-down"></use></svg></span></a></h2> <div class="expand"> <div class="gel-copy"> <p>These cookies stay on your computer or device after your browser has been closed and last for a time specified in the cookie. We use persistent cookies when we need to know who you are for more than one browsing session. For example, we use them to remember your preferences for the next time you visit.</p> </div> </div> </div> <div class="gel-explainer--diagnostic gel-pica" id="028d4ef3978d66c9c9775188df6b5a7e"> <h2 class="gel-great-primer-bold"><a href="#028d4ef3978d66c9c9775188df6b5a7e" class="toggle" data-id="028d4ef3978d66c9c9775188df6b5a7e">Strictly necessary cookies<span class="gel-icon"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="/web/20200217171921im_/https://www.bbc.co.uk/usingthebbc/static/images/gel-icons-core-set.svg#gel-icon-down"></use></svg></span></a></h2> <div class="expand"> <div class="gel-copy"> <p>These cookies let you use all the different parts of the BBC website. Without them, services that you’ve asked for can’t be provided. Also, as a public service, we collect data from you to help us understand how people are using the BBC online, so we can make it better. We sometimes get other companies to analyse how people are using the BBC online.</p> <p>Some examples of how we use these cookies are:</p> <ul> <li>When you sign in to the BBC</li> <li>Remembering security settings that affect access to certain content, for example, any parental controls</li> <li>Collecting information on which web pages visitors go to most often so we can improve our online services</li> </ul> </div> </div> </div> <div class="gel-explainer--diagnostic gel-pica" id="80323fc65493c18f27173d21f97e941f"> <h2 class="gel-great-primer-bold"><a href="#80323fc65493c18f27173d21f97e941f" class="toggle" data-id="80323fc65493c18f27173d21f97e941f">Functional cookies<span class="gel-icon"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="/web/20200217171921im_/https://www.bbc.co.uk/usingthebbc/static/images/gel-icons-core-set.svg#gel-icon-down"></use></svg></span></a></h2> <div class="expand"> <div class="gel-copy"> <p>These help us personalise the BBC to you by remembering your preferences and settings. Some examples of how we use these cookies are:</p> <ul> <li>Remembering your choice of playlists and favourite content and help you do things like commenting on a blog</li> <li>Remembering where you paused a programme on iPlayer and then later picking up where you left off</li> <li>Remembering if you visited the website before so that messages for new visitors are not displayed to you</li> <li>Remembering settings on the website like colour, font size and layout</li> </ul> </div> </div> </div> <div class="gel-explainer--diagnostic gel-pica" id="8c1778a47c661bee5ce4ea4ca5e313ba"> <h2 class="gel-great-primer-bold"><a href="#8c1778a47c661bee5ce4ea4ca5e313ba" class="toggle" data-id="8c1778a47c661bee5ce4ea4ca5e313ba">Performance cookies<span class="gel-icon"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="/web/20200217171921im_/https://www.bbc.co.uk/usingthebbc/static/images/gel-icons-core-set.svg#gel-icon-down"></use></svg></span></a></h2> <div class="expand"> <div class="gel-copy"> <p>These help us make sure that the website is working properly and fix any errors. And they let us try out different ideas.</p> </div> </div> </div> <div class="gel-explainer--diagnostic gel-pica" id="3d92fd5ab89ddc19ab43a885abcccbf8"> <h2 class="gel-great-primer-bold"><a href="#3d92fd5ab89ddc19ab43a885abcccbf8" class="toggle" data-id="3d92fd5ab89ddc19ab43a885abcccbf8">Advertising cookies<span class="gel-icon"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="/web/20200217171921im_/https://www.bbc.co.uk/usingthebbc/static/images/gel-icons-core-set.svg#gel-icon-down"></use></svg></span></a></h2> <div class="expand"> <div class="gel-copy"> <p>Some websites use advertising networks to show you specially targeted adverts when you visit. These networks may also be able to track your browsing across different sites. We don’t set advertising cookies for people in the UK. BBC Studios sites like bbc.com do use advertising cookies but they won’t track your browsing outside the BBC. You can find more information <a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/how-does-the-bbc-use-cookies-for-advertising/">here</a> about how the BBC uses advertising cookies.</p> </div> </div> </div> <div class="gel-explainer--diagnostic gel-pica" id="e6ef8547abd59887096a03ceaf10c57a"> <h2 class="gel-great-primer-bold"><a href="#e6ef8547abd59887096a03ceaf10c57a" class="toggle" data-id="e6ef8547abd59887096a03ceaf10c57a">Other tracking technologies<span class="gel-icon"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="/web/20200217171921im_/https://www.bbc.co.uk/usingthebbc/static/images/gel-icons-core-set.svg#gel-icon-down"></use></svg></span></a></h2> <div class="expand"> <div class="gel-copy"> <p>Some sites use things like web beacons, clear GIFs, page tags and web bugs to understand how people are using them and to target advertising to them.</p> <p>They usually take the form of a small, transparent image that is embedded in a web page or email. They work with cookies and capture data like your IP address, when you viewed the page or email, what device you were using and where you were. You can <a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/how-can-i-stop-my-internet-browser-tracking-my-info/">find out how to avoid them here</a>.</p> </div> </div> </div>  <ul class="button-block-article"> <li class="gel-pica-bold icons icon-document" title="Read the full Privacy and Cookies Policy"><a href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/privacy-policy/" title="Read the full Privacy and Cookies Policy">Read the full Privacy and Cookies Policy</a></li> </ul> </article> </div> </div> <div class="gel-layout gel-features-opts"> <div class="gel-layout__item"> <h2 class="gel-double-pica gel-mv">Learn more about Privacy and Terms across the BBC</h2> <ul class="gel-feature-list"> <li class="gel-feature-item navp-card-gallery primary-item"> <a class="" href="https://web.archive.org/web/20200217171921/http://www.bbc.co.uk/webwise/guides/about-cookies" aria-label="What are Cookies? BBC WEBWISE"> <div class="gel-feature--content"> <div class="gel-feature--image-container"><img src="//web.archive.org/web/20200217171921im_/https://ichef.bbci.co.uk/images/ic/272x153/p0456s82.png" class="img-responsive"/></div> <span class="gel-feature--headline"><h3>What are Cookies?</h3></span> <h4 class="gel-feature--attribution">BBC WEBWISE</h4> </div> </a> </li> <li class="gel-feature-item navp-card-gallery secondary-item"> <a class="" href="https://web.archive.org/web/20200217171921/http://www.bbc.co.uk/news/technology-17842925" aria-label="How to make cookies and influence people BBC NEWS"> <div class="gel-feature--content"> <div class="gel-feature--image-container"><img src="//web.archive.org/web/20200217171921im_/https://ichef.bbci.co.uk/images/ic/272x153/p047ts7j.jpg" class="img-responsive"/></div> <span class="gel-feature--headline"><h3>How to make cookies and influence people</h3></span> <h4 class="gel-feature--attribution">BBC NEWS</h4> </div> </a> </li> <li class="gel-feature-item navp-card-gallery tertiary-item"> <a class="" href="https://web.archive.org/web/20200217171921/http://www.bbc.co.uk/webwise/0/27619287" aria-label="Five ways to keep your mobile data safe BBC WEBWISE"> <div class="gel-feature--content"> <div class="gel-feature--image-container"><img src="//web.archive.org/web/20200217171921im_/https://ichef.bbci.co.uk/images/ic/272x153/p0456s2r.png" class="img-responsive"/></div> <span class="gel-feature--headline"><h3>Five ways to keep your mobile data safe</h3></span> <h4 class="gel-feature--attribution">BBC WEBWISE</h4> </div> </a> </li> <li class="gel-feature-item navp-card-gallery quaternary-item"> <a class="" href="https://web.archive.org/web/20200217171921/http://www.bbc.co.uk/news/topics/62d838bb-2471-432c-b4db-f134f98157c2/cybersecurity" aria-label="All the latest cybersecurity news BBC NEWS"> <div class="gel-feature--content"> <div class="gel-feature--image-container"><img src="//web.archive.org/web/20200217171921im_/https://ichef.bbci.co.uk/images/ic/272x153/p043l59x.png" class="img-responsive"/></div> <span class="gel-feature--headline"><h3>All the latest cybersecurity news</h3></span> <h4 class="gel-feature--attribution">BBC NEWS</h4> </div> </a> </li> </ul> </div> </div> <div class="gel-layout">  <div class="gel-layout__item"> <div class="gel-language-opts bg-color-white gel-long-primer"><span>Choose language: </span><a class="gel-long-primer-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/what-do-i-need-to-know-about-cookies/cy/" title="Cymraeg">Cymraeg</a><a class="gel-long-primer-bold" href="/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/what-do-i-need-to-know-about-cookies/gd/" title="G脿idhlig">Gàidhlig</a></div> </div> </div> </div> </section> </div> <div id="orb-footer" class="orb-footer" dir="ltr"><div id="navp-orb-footer-promo"></div><aside role="complementary"><div id="orb-aside" class="orb-nav-sec b-r b-g-p"><div class="orb-footer-inner" role="navigation" aria-label="BBC"><h2 class="orb-footer-lead">Explore the BBC</h2><div class="orb-footer-primary-links"><ul><li class="orb-nav-home"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/">Home</a></li><li class="orb-nav-news"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/news">News</a></li><li class="orb-nav-sport"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/sport">Sport</a></li><li class="orb-nav-weather"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/weather">Weather</a></li><li class="orb-nav-iplayer"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/iplayer">iPlayer</a></li><li class="orb-nav-sounds"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/sounds">Sounds</a></li><li class="orb-nav-cbbc"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/cbbc">CBBC</a></li><li class="orb-nav-cbeebies"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/cbeebies">CBeebies</a></li><li class="orb-nav-food"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/food">Food</a></li><li class="orb-nav-bitesize"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/bitesize">Bitesize</a></li><li class="orb-nav-arts"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/arts">Arts</a></li><li class="orb-nav-taster"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/taster">Taster</a></li><li class="orb-nav-local"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/news/localnews">Local</a></li><li class="orb-nav-tv"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/tv">TV</a></li><li class="orb-nav-radio"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/radio">Radio</a></li><li class="orb-nav-three"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/bbcthree">Three</a></li></ul></div></div></div></aside><footer role="contentinfo"><div id="orb-contentinfo" class="orb-nav-sec b-r b-g-p"><script>window.orb.worldwideFooterlinks = '<li class="orb-footer-ads"><a href="https://web.archive.org/web/20200217171921/https://advertising.bbcworldwide.com/">Advertise with us<'+'/a><'+'/li><li class="orb-footer-adchoices"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.com/usingthebbc/cookies/how-can-i-change-my-bbc-cookie-settings/">AdChoices / Do Not Sell My Info<'+'/a><'+'/li>';</script><div class="orb-footer-inner"> <ul><li class="orb-footer-terms"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/usingthebbc/terms/">Terms of Use</a></li><li class="orb-footer-about"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/aboutthebbc">About the BBC</a></li><li class="orb-footer-privacy"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/usingthebbc/privacy/">Privacy Policy</a></li><li class="orb-footer-cookies"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/usingthebbc/cookies/">Cookies</a></li><li class="orb-footer-accessibility"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/accessibility/">Accessibility Help</a></li><li class="orb-footer-parental"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/guidance">Parental Guidance</a></li><li class="orb-footer-contact"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/contact">Contact the BBC</a></li><li class="orb-footer-newsletter"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/bbcnewsletter">Get Personalised Newsletters</a></li></ul><small><em class="orb-hilight">Copyright © 2020 BBC.</em> The BBC is not responsible for the content of external sites. <span class="orb-footer-links"><a href="https://web.archive.org/web/20200217171921/https://www.bbc.co.uk/help/web/links/" class="orb-hilight">Read about our approach to external linking.</a></span></small></div></div></div></footer></div><script id="orb-js-script" data-assetpath="https://nav.files.bbci.co.uk/orbit/1b2e292884201dd13064a9204e177864/" src="https://web.archive.org/web/20200217171921js_/https://nav.files.bbci.co.uk/orbit/1b2e292884201dd13064a9204e177864/js/orb.min.js"></script> <script type="text/javascript">require(['orb/lib/_$'], function($) { $.ready(function() { initialiseFooter(); }); var scrollCheckTimer; var didScroll; var previousPosition = 0; var delta = 5; var PROMO_SHOW_BREAKPOINT = 1500; var pageLength = 0; function initialiseFooter() { // Suppress this feature on browsers we no longer test var myNav = navigator.userAgent.toLowerCase(); var oldIE = (myNav.indexOf('msie') !== -1) && parseInt(myNav.split('msie')[1], 10) <= 10; if (!oldIE) { require(['orb/cookies'], function (bbccookies) { var disabledByCookie = (parseInt(bbccookies.get('ckns_nav_promofail')) || 0) >= 3; if (!disabledByCookie) { window.bbcuser.isUKCombined().then(function(isUK) { if (isUK) { setUpLazyLoading(); } }); } }); } } function setUpLazyLoading() { // offsetHeight is expensive to calculate, only do it once. pageLength = Math.abs(document.body.offsetHeight); if (pageLength < getViewportHeight() + 300 || pageLength - getCurrentPosition() < PROMO_SHOW_BREAKPOINT) { loadPromo(); } else { window.onscroll = function () { didScroll = true; }; scrollCheckTimer = setInterval(function () { if (didScroll) { hasScrolled(); didScroll = false; } }, 250); } } function loadPromo() { clearInterval(scrollCheckTimer); require(['orb/async/_footerpromo'], function(promo) { promo.init('https://web.archive.org/web/20200217171921/https://navpromo.api.bbci.co.uk', ''); }); } function getViewportHeight() { return window.innerHeight; } function getCurrentPosition() { return Math.abs(window.scrollY || document.body.scrollTop || document.documentElement.scrollTop); } function hasScrolled() { var currentPosition = getCurrentPosition(); if (Math.abs(previousPosition - currentPosition) <= delta) { return; } if (currentPosition > previousPosition) { if ((pageLength - currentPosition) <= PROMO_SHOW_BREAKPOINT) { loadPromo(); } } previousPosition = currentPosition; } })</script><script type="text/javascript">/*<![CDATA[*/ require(['orb/nav'], function(nav) { window.bbcuser.isUKCombined().then(function(isUK) { if (isUK) { nav.loadJs('https://web.archive.org/web/20200217171921/https://nav.files.bbci.co.uk/orbit/1b2e292884201dd13064a9204e177864/js/edr.min.js'); } }); }); /*]]>*/</script><script type="text/javascript">require.config({ paths: { "mybbc/templates": '//web.archive.org/web/20200217171921/https://mybbc.files.bbci.co.uk/notification-ui/3.9.11/templates', "mybbc/notifications": '//web.archive.org/web/20200217171921/https://mybbc.files.bbci.co.uk/notification-ui/3.9.11/js' } }); require(['mybbc/notifications/NotificationsMain', 'idcta/idcta-1'], function (NotificationsMain, idcta) { var loadNotifications = function (isUK) { if (isUK) { window.bbcpage.loadCSS('//web.archive.org/web/20200217171921/https://mybbc.files.bbci.co.uk/notification-ui/3.9.11/css/main.min.css').then(function() { NotificationsMain.run(idcta, '//web.archive.org/web/20200217171921/https://mybbc.files.bbci.co.uk/notification-ui/3.9.11/'); }); } }; window.bbcuser.isUKCombined().then(function(isUK) { loadNotifications(isUK); }); });</script><div class="bbccom_display_none"><script type="text/javascript">/*<![CDATA[*/ if (window.bbcdotcom && window.bbcdotcom.analytics && bbcdotcom.config && !bbcdotcom.config.isSportApp() && !bbcdotcom.config.isReel()) { bbcdotcom.analytics.page(); } /*]]>*/</script><noscript><img src="//web.archive.org/web/20200217171921im_/https://ssc.api.bbc.com/?c1=2&c2=19293874&ns_site=bbc&name=" height="1" width="1" alt=""></noscript><script type="text/javascript">/*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.currencyProviders) { bbcdotcom.currencyProviders.write(); } /*]]>*/</script><script type="text/javascript">/*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.currencyProviders) { bbcdotcom.currencyProviders.postWrite(); } /*]]>*/</script><script type="text/javascript">/*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.data && bbcdotcom.data.stats && bbcdotcom.data.stats === 1 && bbcdotcom.utils && window.location.pathname === '/') { var wwhpEdition = bbcdotcom.utils.getMetaPropertyContent('wwhp-edition'); var _sf_async_config={}; /** CONFIGURATION START **/ _sf_async_config.uid = 50924; _sf_async_config.domain = "bbc.co.uk"; _sf_async_config.title = "Homepage"+(wwhpEdition !== '' ? ' - '+wwhpEdition : ''); _sf_async_config.sections = "Homepage"+(wwhpEdition !== '' ? ', Homepage - '+wwhpEdition : ''); _sf_async_config.region = wwhpEdition; _sf_async_config.path = "/"+(wwhpEdition !== '' ? '?'+wwhpEdition : ''); /** CONFIGURATION END **/ (function(){ function loadChartbeat() { window._sf_endpt=(new Date()).getTime(); var e = document.createElement("script"); e.setAttribute("language", "javascript"); e.setAttribute("type", "text/javascript"); e.setAttribute('src', '//web.archive.org/web/20200217171921/https://static.chartbeat.com/js/chartbeat.js'); document.body.appendChild(e); } var oldonload = window.onload; window.onload = (typeof window.onload != "function") ? loadChartbeat : function() { oldonload(); loadChartbeat(); }; })(); } /*]]>*/</script><script type="text/javascript">/*<![CDATA[*/ (function() { window.bbcdotcom.bodyLast = true; }()); /*]]>*/</script></div><script type="text/javascript">if (window.SEARCHBOX.suppress === false && window.SEARCHBOX.locale && /^en-?.*?/.test(window.SEARCHBOX.locale)) { require.config({ paths: { "search/searchbox": window.SEARCHBOX.searchboxAppStaticPrefix, } }); if (bbcuser && bbcuser.isUKCombined) { bbcuser.isUKCombined().then(function (isUK) { if (isUK) { require(['search/searchbox/searchboxDrawer'], function (SearchboxDrawer) { SearchboxDrawer.run(window.SEARCHBOX); }); } }); } }</script> <script type="text/javascript">window.COOKIES_STATIC_HOST = 'https://web.archive.org/web/20200217171921/https://nav.files.bbci.co.uk/orbit-webmodules/0.0.2-441.b5f0561/cookie-banner/cookie-prompt/';</script><script src="https://web.archive.org/web/20200217171921js_/https://nav.files.bbci.co.uk/orbit-webmodules/0.0.2-441.b5f0561/cookie-banner/cookie-banners.bundle.js" async=""></script><script type="text/javascript">require(["istats-1","orb/cookies"],function(o,t){if(t.isAllowed("s1"))try{if(!require.s.contexts._.config.paths.idcta)return void i();require(["idcta/idcta-1"],function(t){t&&"function"==typeof t.getIStatsLabels&&o.addLabels(t.getIStatsLabels()),i()},function(t){throw t})}catch(t){console&&"function"==typeof console.log&&console.log("an exception occurred while adding idcta labels to istats, invoking istats without them",t),i()}function i(){o.invoke()}});</script><script type="text/javascript">"use strict";window.__reverb.__reverbLoadedPromise.then(function(e){return e.initialise().then(function(){return e.viewEvent()})},function(){console.log("Failed to load reverb. No event sent")});</script><script src="https://web.archive.org/web/20200217171921js_/https://nav.files.bbci.co.uk/orbit-webmodules/0.0.2-441.b5f0561/detectview/detectview.bundle.js" async=""></script> </body> </html>

CINXE.COM

What do I need to know about cookies? - Using the BBC