Cookie Policy - Stack Overflow

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These cookies do not store any personally identifiable information. </p> <table class="s-table s-table__stripes"> <thead> <tr> <th>Domain</th> <th>Cookies</th> <th>Used as</th> </tr> </thead> <tbody> <tr> <td>askubuntu.com, mathoverflow.net, serverfault.com, stackapps.com, stackexchange.com, stackoverflow.co, stackoverflow.com, stackoverflow.blog, stackoverflowsolutions.com, stackoverflowteams.com, superuser.com</td> <td> _cfuvid, .AspNetCore.Antiforgery, acct, csouser, drafts, fkey, flash-message-json, have_a_cookie, hero-dismissed, job-alert-tooltip-dismissed, job-alert-verified-email, job-visitor-survey-dismissed, jquery-fallback, mobileSearchAccordion, no-responsiveness, OptanonAlertBoxClosed, optimizelyEndUserId, optimizelyPPID, prov, prov_tgt, sgt, theme, uauth, usr </td> <td>1st Party</td> </tr> <tr> <td>clc.stackoverflow.com</td> <td> __cflb </td> <td>1st Party</td> </tr> <tr> <td>stackoverflow.email</td> <td> iterableEmailCampaignId, iterableEndUserId, iterableMessageId, iterableTemplateId </td> <td>1st Party</td> </tr> <tr> <td>stack.imgur.com</td> <td> __cf_bm </td> <td>1st Party</td> </tr> <tr> <td>meta.stackoverflow.com</td> <td> OptanonConsent </td> <td>1st Party</td> </tr> <tr> <td>stackexchange.com</td> <td> mc, rawr </td> <td>1st Party</td> </tr> <tr> <td title="qa.sockets.stackexchange.com">qa.sockets.stackexchange.com</td> <td> __cf_bm, _cfuvid </td> <td>3rd Party</td> </tr> <tr> <td title="imgur.com">imgur.com</td> <td> __cfduid </td> <td>3rd Party</td> </tr> <tr> <td title="stackexchange.com">stackexchange.com</td> <td> __cflb, _cfuvid, prov </td> <td>3rd Party</td> </tr> <tr> <td title="stacksnippets.net">stacksnippets.net</td> <td> intercom-id-inf0secd, intercom-session-inf0secd </td> <td>3rd Party</td> </tr> <tr> <td title="cdn.sstatic.net">cdn.sstatic.net</td> <td> OptanonAlertBoxClosed, OptanonConsent </td> <td>3rd Party</td> </tr> <tr> <td title="sstatic.net">sstatic.net</td> <td> __cf_bm </td> <td>3rd Party</td> </tr> <tr> <td title="google.com">google.com</td> <td> __Secure-3PAPISID, __Secure-3PSID, __Secure-APISID, __Secure-HSID, __Secure-SSID, 1P_JAR, APISID, HSID, NID, SAPISID, SID, SIDCC, SSID </td> <td>3rd Party</td> </tr> <tr> <td title="intercom.com">intercom.com</td> <td> gtm_id </td> <td>3rd Party</td> </tr> <tr> <td title="artstation.com">artstation.com</td> <td> __cf_bm </td> <td>3rd Party</td> </tr> <tr> <td title="ajax.googleapis.com">ajax.googleapis.com</td> <td> OptanonAlertBoxClosed, OptanonConsent </td> <td>3rd Party</td> </tr> <tr> <td title="www.pluralsight.com">www.pluralsight.com</td> <td> __cf_bm </td> <td>3rd Party</td> </tr> <tr> <td title="superuser.com">superuser.com</td> <td> __cf_bm </td> <td>3rd Party</td> </tr> <tr> <td title="discordapp.com">discordapp.com</td> <td> __cf_bm </td> <td>3rd Party</td> </tr> </tbody> </table> <p class="fs-body2 lh-lg fc-black-500 mt16"> Additionally, some strictly necessary cookies are dynamically generated based on unique identifiers. These cookies are: </p> <table class="s-table s-table__stripes"> <thead> <tr> <th>Domain</th> <th>Cookies</th> <th>Used as</th> </tr> </thead> <tbody> <tr> <td> askubuntu.com, mathoverflow.net, serverfault.com, stackapps.com, stackexchange.com, stackoverflow.co, stackoverflow.com, stackoverflow.blog, stackoverflowsolutions.com, stackoverflowteams.com, superuser.com </td> <td> {site}usr, {site}user, AuthMethodBanner-Dismissed-{id}, notice-{name}, p{postId}, rk-{postId} </td> <td>1st Party</td> </tr> </tbody> </table> </div> </div> <div class="d-flex gs16 gsx mt32"> <div class="flex--item12"> <p class="fs-body3 fc-black-600 lh-xs"> Optional cookies </p> <p class="fs-body2 lh-lg fc-black-500"> We will ask for your permission to place the cookies listed below on your device, but if you opt out of them, some functions may not work properly. We will only use these cookies with your permission when you accept our use of the cookies. These are explained in more detail below. </p> </div> </div> <div class="d-flex gs16 gsx mt32" id="C0002-list"> <div class="flex--item12"> <p class="fs-body3 fc-black-600 lh-xs"> Performance Cookies </p> <p class="fs-body2 lh-lg fc-black-500"> These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site, which helps us optimize your experience. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not be able to use your data in this way. </p> <table class="s-table s-table__stripes"> <thead> <tr> <th>Domain</th> <th>Cookies</th> <th>Used as</th> </tr> </thead> <tbody> <tr> <td>askubuntu.com, mathoverflow.net, serverfault.com, stackapps.com, stackexchange.com, stackoverflow.co, stackoverflow.com, stackoverflow.blog, stackoverflowsolutions.com, stackoverflowteams.com, superuser.com</td> <td> __qca, _ga_xxxxxxxxxx, _gat, _gat_xxxxxxxxxxxxxxxxxxxxxxxxxx, _gid, _ym_d, _ym_isad, _ym_uid, referral, uc </td> <td>1st Party</td> </tr> <tr> <td>talent.stackoverflow.com</td> <td> _ga </td> <td>1st Party</td> </tr> <tr> <td>cdn.sstatic.net</td> <td> fkey </td> <td>1st Party</td> </tr> <tr> <td title="mc.yandex.ru">mc.yandex.ru</td> <td> sync_cookie_csrf, yabs-sid </td> <td>3rd Party</td> </tr> <tr> <td title="mc.yandex.com">mc.yandex.com</td> <td> sync_cookie_csrf, sync_cookie_ok </td> <td>3rd Party</td> </tr> <tr> <td title="codesandbox.io">codesandbox.io</td> <td> _cfuvid </td> <td>3rd Party</td> </tr> <tr> <td title="sstatic.net">sstatic.net</td> <td> _cfuvid </td> <td>3rd Party</td> </tr> <tr> <td title="i.sstatic.net">i.sstatic.net</td> <td> _cfuvid </td> <td>3rd Party</td> </tr> <tr> <td title="quantserve.com">quantserve.com</td> <td> mc </td> <td>3rd Party</td> </tr> <tr> <td title="www.google-analytics.com">www.google-analytics.com</td> <td> fkey, ga_client_id </td> <td>3rd Party</td> </tr> <tr> <td title="discordapp.com">discordapp.com</td> <td> _cfuvid </td> <td>3rd Party</td> </tr> </tbody> </table> </div> </div> <div class="d-flex gs16 gsx mt32" id="C0003-list"> <div class="flex--item12"> <p class="fs-body3 fc-black-600 lh-xs"> Functional Cookies </p> <p class="fs-body2 lh-lg fc-black-500"> These cookies enable the website to provide enhanced functionality and personalization. They may be set by us or by third party providers whose services we have added to our pages. If you do not allow these cookies then some or all of these services may not function properly. </p> <table class="s-table s-table__stripes"> <thead> <tr> <th>Domain</th> <th>Cookies</th> <th>Used as</th> </tr> </thead> <tbody> <tr> <td>askubuntu.com, mathoverflow.net, serverfault.com, stackapps.com, stackexchange.com, stackoverflow.co, stackoverflow.com, stackoverflow.blog, stackoverflowsolutions.com, stackoverflowteams.com, superuser.com</td> <td> cf_clearance, mfnes </td> <td>1st Party</td> </tr> <tr> <td title="vimeo.com">vimeo.com</td> <td> vuid </td> <td>3rd Party</td> </tr> <tr> <td title="github.com">github.com</td> <td> _gh_sess, _octo, logged_in </td> <td>3rd Party</td> </tr> </tbody> </table> </div> </div> <div class="d-flex gs16 gsx mt32" id="C0004-list"> <div class="flex--item12"> <p class="fs-body3 fc-black-600 lh-xs"> Targeting Cookies </p> <p class="fs-body2 lh-lg fc-black-500"> These cookies are used to make advertising messages more relevant to you and may be set through our site by us or by our advertising partners. They may be used to build a profile of your interests and show you relevant advertising on our site or on other sites. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. </p> <table class="s-table s-table__stripes"> <thead> <tr> <th>Domain</th> <th>Cookies</th> <th>Used as</th> </tr> </thead> <tbody> <tr> <td>wikipedia.org</td> <td> WMF-Last-Access-Global </td> <td>1st Party</td> </tr> <tr> <td>askubuntu.com, mathoverflow.net, serverfault.com, stackapps.com, stackexchange.com, stackoverflow.co, stackoverflow.com, stackoverflow.blog, stackoverflowsolutions.com, stackoverflowteams.com, superuser.com</td> <td> __gads, __gpi, _gat_legacyTracker, _so_tgt, eupubconsent-v2, GoogleAdServingTest, urr </td> <td>1st Party</td> </tr> <tr> <td>everesttech.net</td> <td> everest_g_v2 </td> <td>1st Party</td> </tr> <tr> <td>bidr.io</td> <td> bito, bitoIsSecure </td> <td>1st Party</td> </tr> <tr> <td title="bidr.io">bidr.io</td> <td> checkForPermission </td> <td>3rd Party</td> </tr> <tr> <td title="youtube.com">youtube.com</td> <td> GPS </td> <td>3rd Party</td> </tr> <tr> <td title="linkedin.com">linkedin.com</td> <td> bcookie, lang, li_gc, lidc, lissc, UserMatchHistory </td> <td>3rd Party</td> </tr> <tr> <td title="adnxs.com">adnxs.com</td> <td> anj, receive-cookie-deprecation, uuid2 </td> <td>3rd Party</td> </tr> <tr> <td title="twitter.com">twitter.com</td> <td> guest_id, guest_id_ads, guest_id_marketing, personalization_id </td> <td>3rd Party</td> </tr> <tr> <td title="mathtag.com">mathtag.com</td> <td> mt_mop, uuid </td> <td>3rd Party</td> </tr> <tr> <td title="yandex.ru">yandex.ru</td> <td> i, yandexuid, ymex </td> <td>3rd Party</td> </tr> <tr> <td title="doubleclick.net">doubleclick.net</td> <td> APC, ar_debug, IDE, receive-cookie-deprecation, test_cookie </td> <td>3rd Party</td> </tr> <tr> <td title="ads.linkedin.com">ads.linkedin.com</td> <td> lang </td> <td>3rd Party</td> </tr> <tr> <td title="crwdcntrl.net">crwdcntrl.net</td> <td> _cc_aud, _cc_cc, _cc_dc, _cc_id </td> <td>3rd Party</td> </tr> <tr> <td title="bing.com">bing.com</td> <td> MUID </td> <td>3rd Party</td> </tr> <tr> <td title="scorecardresearch.com">scorecardresearch.com</td> <td> UID, UIDR </td> <td>3rd Party</td> </tr> <tr> <td title="www.linkedin.com">www.linkedin.com</td> <td> bscookie, JSESSIONID </td> <td>3rd Party</td> </tr> <tr> <td title="casalemedia.com">casalemedia.com</td> <td> CMID, CMPRO, CMPS, CMST </td> <td>3rd Party</td> </tr> <tr> <td title="facebook.com">facebook.com</td> <td> fr </td> <td>3rd Party</td> </tr> <tr> <td title="demdex.net">demdex.net</td> <td> demdex </td> <td>3rd Party</td> </tr> <tr> <td title="yahoo.com">yahoo.com</td> <td> A1, A1S, A3, B, GUC </td> <td>3rd Party</td> </tr> <tr> <td title="en.wikipedia.org">en.wikipedia.org</td> <td> NetworkProbeLimit, WMF-Last-Access </td> <td>3rd Party</td> </tr> <tr> <td title="www.facebook.com">www.facebook.com</td> <td> </td> <td>3rd Party</td> </tr> </tbody> </table> </div> </div> <div class="d-flex gs16 gsx mt16"> <div class="flex--item12"> <p class="fs-body2 lh-lg fc-black-500"> You can withdraw any consent to the use of cookies or manage any other cookie preferences by visiting our <button type="button" data-controller="cookie-settings" data-action="click->cookie-settings#toggle" class="s-btn s-btn__link" data-consent-popup-loader="cookiepolicypage">Cookie Settings</button> or clicking on the bottom of every page of our websites. You can then toggle on or off the buttons as appropriate. It may be necessary to refresh the page for the updated settings to be displayed. </p> </div> </div> </section> <section> <div class="d-flex gs16 gsx"> <div class="flex--item12"> <p class="fs-subheading fc-black-600 fw-bold lh-xs"> Our use of cookies </p> <p class="fs-subheading fc-black-600 fw-bold lh-xs"> Third party access to the cookies </p> <p class="fs-body2 lh-lg fc-black-500"> Our third party partners and other organizations that sponsor pages on Stack Overflow may use cookies or other technologies to learn more about your interest in their products and services and in some cases to tailor such products and services to you. </p> <p class="fs-body2 lh-lg fc-black-500"> <span class="fw-bold">Third-Party Cookies:</span> Our services also include cookies from third parties that we partner with directly or indirectly. Many of these third parties are companies that work with us or with advertisers who advertise on the Stack Exchange Network in order to help target ads or measure the results of an advertising campaign. </p> <p class="fs-subheading fc-black-600 fw-bold lh-xs"> More information about the cookies we use </p> <p class="fs-body2 lh-lg fc-black-500"> <span class="fw-bold">General Browsing:</span> We use cookies that are important for certain technical features of our website, like logging into user accounts and implementing fixes and improvements to our platform. </p> <p class="fs-body2 lh-lg fc-black-500"> These cookies: </p> <ul class="list-ls-disc"> <li class="fs-body2 lh-lg fc-black-500"> Enable behavior in our Products and/or Services that is tailored to the activity or preferences of a person visiting our properties </li> <li class="fs-body2 lh-lg fc-black-500"> Allow users to opt out of certain types of modeling, tailoring, or personalization in our products </li> <li class="fs-body2 lh-lg fc-black-500"> Collect information on our users’ preferences in order to create more useful products </li> <li class="fs-body2 lh-lg fc-black-500"> Maintain the regular business operations of our Advertising and Marketing departments (such as one-time pop-ups or “hero” displays when first visiting a site and to collect impressions and click data) </li> <li class="fs-body2 lh-lg fc-black-500"> Help to diagnose and correct downtime, bugs, and errors in our code to ensure that our products are operating efficiently </li> </ul> <p class="fs-body2 lh-lg fc-black-500"> <span class="fw-bold">Public Q&A Platform:</span> We use cookies that support and enhance our public Q&A platform by enabling important functionality. Such activity includes tracking and attributing reputation and badges based on site activity. </p> <p class="fs-body2 lh-lg fc-black-500"> These cookies: </p> <ul class="list-ls-disc"> <li class="fs-body2 lh-lg fc-black-500"> Validate the authenticity of persons attempting to gain access to a specific user account </li> <li class="fs-body2 lh-lg fc-black-500"> Enable the core platform of community-generated questions and answers, including diagnosing and resolving issues within our Q&A platform </li> <li class="fs-body2 lh-lg fc-black-500"> Identify individual users to attribute activities and awards </li> <li class="fs-body2 lh-lg fc-black-500"> Allow you to create an optional, résumé-like listing of user achievements and employment history, comparable to a resume, which users can reference when applying for new jobs through our Talent platform or externally </li> </ul> <p class="fs-body2 lh-lg fc-black-500"> <span class="fw-bold">Talent Platform:</span> We use cookies to run our Talent platform, allowing prospective employers to recruit for open positions and users to view and apply for those positions. </p> <p class="fs-body2 lh-lg fc-black-500"> These cookies: </p> <ul class="list-ls-disc"> <li class="fs-body2 lh-lg fc-black-500"> Validate the authenticity of persons attempting to gain access to a specific user account </li> <li class="fs-body2 lh-lg fc-black-500"> Help us to comply with legal requirements in recruitment and hiring </li> <li class="fs-body2 lh-lg fc-black-500"> Provide a means of contact for Talent employers (including opting out of the Talent candidate listings) </li> <li class="fs-body2 lh-lg fc-black-500"> Allow employers to target specific users (via searches and marketing efforts) who are likely to qualify for a given position </li> <li class="fs-body2 lh-lg fc-black-500"> Allow users to save searches in order to more quickly identify newly listed jobs </li> <li class="fs-body2 lh-lg fc-black-500"> Create a channel of direct communication between our support staff and users who request assistance </li> <li class="fs-body2 lh-lg fc-black-500"> Support integration of job applications and listings from our platform to third-party applicant tracking systems (ATS). </li> </ul> <p class="fs-body2 lh-lg fc-black-500"> <span class="fw-bold">Stack Overflow Teams:</span> We use cookies for our Teams platform, enabling groups to access our secured, private Q&A solution. </p> <p class="fs-body2 lh-lg fc-black-500"> These cookies: </p> <ul class="list-ls-disc"> <li class="fs-body2 lh-lg fc-black-500"> Validate the identity of authorized persons and accounts to gain access to a specific Team or Company account </li> <li class="fs-body2 lh-lg fc-black-500"> Enable the core platform of team-generated questions and answers, including diagnosing and resolving issues within our Teams Q&A platform </li> <li class="fs-body2 lh-lg fc-black-500"> Identify individual users to attribute activities and awards </li> </ul> <p class="fs-body2 lh-lg fc-black-500"> <span class="fw-bold">Advertising:</span> We use cookies to enable advertising with our third-party Partners, which in turn allows us to provide many of our services free of charge. </p> <p class="fs-body2 lh-lg fc-black-500"> These cookies: </p> <ul class="list-ls-disc"> <li class="fs-body2 lh-lg fc-black-500"> Customize the ad experience for our users, including tailoring job and display ads to the technologies a person has previously looked at, the communities a person has visited, and the job ads a person has already seen </li> <li class="fs-body2 lh-lg fc-black-500"> Allow direct communication between a 3rd party partner who hosts a promotional event with us, and users who have opted into the promotion </li> <li class="fs-body2 lh-lg fc-black-500"> Allow us to track when a Stack Overflow user sees or clicks on an ad or later visits a third-party website or purchases a product on a third-party website </li> <li class="fs-body2 lh-lg fc-black-500"> Collect impressions and click data for internal reporting and product optimization </li> </ul> <p class="fs-body2 lh-lg fc-black-500"> <span class="fw-bold">Analytics:</span> We use cookies to compile usage activity in order to better cater our Products and Services offerings to you, and to third parties. We DO NOT share identifiable “raw” data with our clients or any third parties, however we do make high-level decisions based on aggregated data about your usage of our Products and Services. </p> <p class="fs-body2 lh-lg fc-black-500"> These cookies: </p> <ul class="list-ls-disc"> <li class="fs-body2 lh-lg fc-black-500"> Monitor site traffic and behavior flows of users </li> <li class="fs-body2 lh-lg fc-black-500"> Measure the effectiveness of on-site products </li> <li class="fs-body2 lh-lg fc-black-500"> Measure the effectiveness of off-site marketing campaigns and tactics </li> </ul> </div> </div> </section> <section class="flex--item"> <div class="d-flex gs16 gsx"> <div class="flex--item12"> <p class="fs-subheading fc-black-600 fw-bold lh-xs"> How to turn off all cookies and consequences of doing so </p> <p class="fs-body2 lh-lg fc-black-500"> If you do not want to accept any cookies, you may be able to change your browser settings so that cookies (including those which are essential to the services requested) are not accepted. If you do this, please be aware that you may lose some of the functionality of our website. </p> <p class="fs-body2 lh-lg fc-black-500"> For further information about cookies and how to disable them please go <a href="https://www.aboutcookies.org" rel="nofollow">www.aboutcookies.org</a> or <a href="https://www.allaboutcookies.org" rel="nofollow">www.allaboutcookies.org</a>. </p> <p class="fs-subheading fc-black-600 fw-bold lh-xs"> Your browser settings </p> <p class="fs-body2 lh-lg fc-black-500"> Your browser includes controls that allow you to manage the use of cookies by the sites that you visit. Most browsers have features that enable you to see and delete cookies stored on your device and to block cookies from all or selected sites. </p> <p class="fs-body2 lh-lg fc-black-500"> Your browser may be initially set to accept cookies, but you can change your settings to notify you when a cookie is being set or updated, or to block cookies altogether. </p> <p class="fs-body2 lh-lg fc-black-500"> Please note that by blocking any or all cookies you may not have access to certain features, content, or personalization available through the website. </p> <p class="fs-body2 lh-lg fc-black-500"> Please check the “Help” section of your browser for more information. You can also click on the links below for more information from external help materials for some of the popular browsers: </p> <ul class="list-ls-disc"> <li class="fs-body2 lh-lg fc-black-500"> <a href="https://www.mozilla.org/firefox/new/" rel="nofollow">Mozilla Firefox</a> </li> <li class="fs-body2 lh-lg fc-black-500"> <a href="https://www.apple.com/safari/" rel="nofollow">Apple Safari</a> </li> <li class="fs-body2 lh-lg fc-black-500"> <a href="https://www.google.com/chrome/" rel="nofollow">Google Chrome</a> </li> <li class="fs-body2 lh-lg fc-black-500"> <a href="https://www.microsoft.com/edge" rel="nofollow">Microsoft Edge</a> </li> </ul> <p class="fs-subheading fc-black-600 fw-bold lh-xs"> Your mobile device settings </p> <p class="fs-body2 lh-lg fc-black-500"> Your mobile device may also include browser settings that allow you to manage the use of cookies, especially if the device supports installing apps such as iOS and Android devices. iOS and Android devices also include additional device settings that control whether advertising partners can use information about your app activity for advertising purposes. 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