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exit:slideTransition.start,slideTransition.reverse" intersection-ratios="1" layout="nodisplay" class="i-amphtml-layout-nodisplay" hidden="hidden" i-amphtml-layout="nodisplay"> </amp-position-observer> <amp-animation id="slideTransition" layout="nodisplay" class="i-amphtml-layout-nodisplay" hidden="hidden" i-amphtml-layout="nodisplay"> <script type="application/json">{"duration":"150ms","fill":"both","easing":"ease-out","iterations":"1","animations":[{"selector":".label-title","keyframes":[{"transform":"scale3d(0, 1, 1)"},{"transform":"scale3d(1, 1, 1)"}]}]}</script> </amp-animation> </div> <amp-user-notification class="-fv i-amphtml-layout-nodisplay" id="format-filter-hint" layout="nodisplay" hidden="hidden" i-amphtml-layout="nodisplay"> </amp-user-notification> <div class="-fd" aria-hidden="true"> <div class="-fm"> <div class="-fg">Select your format for a more streamlined experience</div> <button class="-fy" on="tap:format-filter-hint.dismiss"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#close"/></svg> </button> </div> </div> <main class="ap--main -fb"> <div class="-tf"> <input class="-od ap-a-sidebar-mobile-toggle-input-sidebar" type="checkbox" name="sidebar" id="sidebar" autocomplete="off"> <input class="-om ap-a-sidebar-desktop-toggle-input-sidebar" type="checkbox" name="sidebar-desktop" id="sidebar-desktop" autocomplete="off"> <span id="ap--sidebar-content" class="-oy"></span> <section class="ap--toc"> <div class="ap-o-toc" [class]="contentmenuopen ? 'ap-o-toc contentmenuopen' : 'ap-o-toc'" i-amphtml-binding> <label class="ap-o-toc-toggle" for="toc" on="tap:AMP.setState({contentmenuopen: !contentmenuopen})" role="contentmenutrigger" tabindex="0"> <span class="ap-o-toc-hl">Table of contents</span> <span class="nav-icon"> <svg class="ap-a-ico"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </span> </label> <input class="-oh -of" type="checkbox" name="toc" id="toc" autocomplete="off"> <ul><li><a href="#usage">Usage</a><ul> <li><a href="#generated-css-classes">Generated CSS classes</a></li> <li><a href="#optional-configuration-for-grouping-locations">Optional configuration for grouping locations</a><ul> <li><a href="#example:-generated-css-classes">Example: Generated CSS classes</a></li> <li><a href="#example:-using-css-classes-and-country-groups-to-change-"soccer"-to-"football"">Example: Using CSS classes and country groups to change "soccer" to "football"</a></li> </ul> </li> <li><a href="#preset-country-groups">Preset Country Groups</a><ul> <li><a href="#u.s.-california-detection">U.S. California Detection</a></li> <li><a href="#u.s.-subdivisions-detection">U.S. Subdivisions Detection</a></li> </ul> </li> <li><a href="#render-blocking">Render Blocking</a></li> <li><a href="#integration-with-amp-bind">Integration with amp-bind</a></li> <li><a href="#variable-substitution">Variable substitution</a></li> <li><a href="#caching">Caching</a></li> <li><a href="#pre-rendering">Pre-rendering</a></li> <li><a href="#self-hosting">Self Hosting</a></li> <li><a href="#debugging">Debugging</a></li> </ul> </li> <li><a href="#validation">Validation</a></li></ul> </div> </section> <section class="-t"> <label class="-op -ol ap-a-sidebar-mobile-toggle-label-sidebar" for="sidebar" on="tap:sidebar-left.toggle" role="categoriemenutrigger" tabindex="0"> <span class="label-icon"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#sidebar-toggle"/></svg></span> <span class="label-title">Toggle Sidebar</span> </label> <label class="-op -og ap-a-sidebar-desktop-toggle-label-sidebar" for="sidebar-desktop" role="categoriemenutrigger-desktop" tabindex="0"> <span class="label-icon"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#sidebar-toggle"/></svg></span> <span class="label-title">Toggle Sidebar</span> </label> <nav class="-ou"> <a class="ap-m-breadcrumbs-crumb" href="/documentation/">Documentation</a> <span class="ap-m-breadcrumbs-divider"> <svg class="ap-a-ico -oa"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </span> <a class="ap-m-breadcrumbs-crumb" href="/documentation/components/">Components</a> </nav> <h1> amp-geo </h1> <div class="ap-o-component-intro"> <div class="ap-o-component-intro-row"> <h4 class="ap-o-component-intro-headline">Description</h4> <p class="ap-o-component-intro-text">Provides an approximate country-level geolocation interface.</p> </div>   <div class="ap-o-component-intro-row ap-o-component-intro-row-inline"> <h4 class="ap-o-component-intro-headline">Required Scripts</h4> <div id="amp-script" class="ap-a-copy-script"> <pre><script async custom-element="amp-geo" src="https://cdn.ampproject.org/v0/amp-geo-0.1.js"></script></pre> <amp-iframe width="24" height="24" layout="fixed" sandbox="allow-scripts" src="https://amp.dev/shared/copy-script/#%3Cscript%20async%20custom-element%3D%22amp-geo%22%20src%3D%22https%3A//cdn.ampproject.org/v0/amp-geo-0.1.js%22%3E%3C/script%3E" class="i-amphtml-layout-fixed i-amphtml-layout-size-defined" style="width:24px;height:24px;" i-amphtml-layout="fixed"> <div placeholder></div> </amp-iframe> </div> </div> <div class="ap-o-component-intro-row ap-o-component-intro-row-inline"> <h4 class="ap-o-component-intro-headline">Supported Layouts</h4> <div> <a class='ap-a-pill ap-a-pill-flat ap-a-pill-small ap-a-pill-link' href='/documentation/guides-and-tutorials/learn/amp-html-layout/layouts_demonstrated#nodisplay'>nodisplay</a> </div> </div> <div class="ap-o-component-intro-row"> <div id="examples" class="ap-m-clip"> <h4 class="ap-o-component-intro-headline">Examples</h4> <div class="ap-o-component-intro-list"> <a class='ap-o-component-intro-list-item' href='/documentation/examples/components/amp-geo/'>amp-geo</a> <a class='ap-o-component-intro-list-item' href='/documentation/examples/user-consent/geolocation-based_consent_flow/'>Geolocation-based Consent Flow</a> </div> </div> </div> </div> <h2 id="usage">Usage</h2> <p>The <code>amp-geo</code> component provides country-level geolocation. The <code>amp-geo</code> component also provides a simple mechanism to group countries, making it easier to apply attributes to several countries at once.</p> <p>The <code>amp-geo</code> component uses the country from which the request originated in the form of an <a href="https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2" title="ISO 3166-1 alpha-2">ISO 3166-1 alpha-2</a> country code. The <code>amp-geo</code> component determines this code from the client's IP address. The ISO country code may not be the same as the top-level domain. For example, the code for the United Kingdom is <code>gb</code> not <code>uk</code>.</p> <p>It's possible that an IP address with country information in the WHOIS database will not have country information in <code>amp-geo</code>. If the country cannot be determined, the value is set to <code>unknown</code>. If the grouping feature is used at least one group must contain <code>unknown</code>.</p> <p>The <code>amp-geo</code> component provides CSS, <a href="https://github.com/ampproject/amphtml/blob/main/extensions/amp-geo/../amp-bind/amp-bind.md"><code>amp-bind</code></a> and variable substitution interfaces.</p> <h3 id="generated-css-classes">Generated CSS classes</h3> <p>If the <code>amp-iso-country-XX</code> class is applied to the <code>body</code> element, where <code>XX</code> is replaced by the ISO country code or with the value <code>unknown</code>, you can use CSS to modify the <code>body</code> element.</p> <p>In the following example, we add <code><amp-geo></code> to determine the user's location so that we can display the appropriate flag.</p> <div class="-ta"><pre><span></span><span class="p"><</span><span class="nt">amp-geo</span> <span class="na">layout</span><span class="o">=</span><span class="s">"nodisplay"</span><span class="p">></</span><span class="nt">amp-geo</span><span class="p">></span> </pre></div> <p>If the user is in Canada, the <code>amp-geo</code> component applies the <code>amp-iso-country-ca</code> CSS class to the <code>body</code> tag. We can then use CSS to apply the correct background image for Canada:</p> <div class="-ta"><pre><span></span><span class="c">/* defaults */</span> <span class="p">.</span><span class="nc">flag</span> <span class="p">{</span> <span class="k">background-image</span><span class="p">:</span> <span class="s1">'./starsandstripes.png'</span><span class="p">;</span> <span class="p">}</span> <span class="c">/* override */</span> <span class="p">.</span><span class="nc">amp-iso-country-ca</span> <span class="p">.</span><span class="nc">flag</span> <span class="p">{</span> <span class="k">background-image</span><span class="p">:</span> <span class="s1">'./mapleleaf.png'</span><span class="p">;</span> <span class="p">}</span> </pre></div> <h3 id="optional-configuration-for-grouping-locations">Optional configuration for grouping locations</h3> <p>Optionally, you can include a JSON configuration script in the <code>amp-geo</code> tag. The <code>ISOCountryGroups</code> key allows selections by groups of country codes.</p> <div class="-ta"><pre><span></span><span class="p"><</span><span class="nt">amp-geo</span> <span class="na">layout</span><span class="o">=</span><span class="s">"nodisplay"</span><span class="p">></span> <span class="p"><</span><span class="nt">script</span> <span class="na">type</span><span class="o">=</span><span class="s">"application/json"</span><span class="p">></span> <span class="p">{</span> <span class="s2">"ISOCountryGroups"</span><span class="o">:</span> <span class="p">{</span> <span class="s2">"soccer"</span><span class="o">:</span> <span class="p">[</span><span class="s2">"au"</span><span class="p">,</span> <span class="s2">"ca"</span><span class="p">,</span> <span class="s2">"ie"</span><span class="p">,</span> <span class="s2">"nz"</span><span class="p">,</span> <span class="s2">"us"</span><span class="p">,</span> <span class="s2">"za"</span><span class="p">],</span> <span class="s2">"football"</span><span class="o">:</span> <span class="p">[</span><span class="s2">"unknown"</span><span class="p">]</span> <span class="p">}</span> <span class="p">}</span> <span class="p"></</span><span class="nt">script</span><span class="p">></span> <span class="p"></</span><span class="nt">amp-geo</span><span class="p">></span> </pre></div> <p>If country groups are specified, <code>amp-geo</code> iterates through the groups. For any group that contains the current country, a class named <code>amp-geo-group-</code> followed by the group name is added to <code><body></code>. Group names may only contain a-z, A-Z and 0-9, and may not start with a digit. If no country group is matched the class <code>amp-geo-no-group</code> is added to <code>body</code>.</p> <h4 id="example:-generated-css-classes">Example: Generated CSS classes</h4> <div class="-ta"><pre><span></span><span class="p"><</span><span class="nt">body</span> <span class="na">class</span><span class="o">=</span><span class="s">"amp-geo-group-football amp-iso-country-gb …"</span><span class="p">></</span><span class="nt">body</span><span class="p">></span> </pre></div> <h4 id="example:-using-css-classes-and-country-groups-to-change-"soccer"-to-"football"">Example: Using CSS classes and country groups to change "soccer" to "football"</h4> <p>In the following example, we determine if the user is in a "soccer" country and display a "football" message for those users.</p> <div class="-ta"><pre><span></span><span class="p"><</span><span class="nt">amp-geo</span> <span class="na">layout</span><span class="o">=</span><span class="s">"nodisplay"</span><span class="p">></span> <span class="p"><</span><span class="nt">script</span> <span class="na">type</span><span class="o">=</span><span class="s">"application/json"</span><span class="p">></span> <span class="p">{</span> <span class="s2">"ISOCountryGroups"</span><span class="o">:</span> <span class="p">{</span> <span class="s2">"soccer"</span><span class="o">:</span> <span class="p">[</span><span class="s2">"au"</span><span class="p">,</span> <span class="s2">"ca"</span><span class="p">,</span> <span class="s2">"ie"</span><span class="p">,</span> <span class="s2">"nz"</span><span class="p">,</span> <span class="s2">"us"</span><span class="p">,</span> <span class="s2">"za"</span><span class="p">],</span> <span class="s2">"football"</span><span class="o">:</span> <span class="p">[</span><span class="s2">"unknown"</span><span class="p">]</span> <span class="p">}</span> <span class="p">}</span> <span class="p"></</span><span class="nt">script</span><span class="p">></span> <span class="p"></</span><span class="nt">amp-geo</span><span class="p">></span> </pre></div> <p>If the user is in one of the "soccer" countries, the <code>amp-geo-group-soccer</code> CSS class is applied to the <code>body</code> tag.</p> <div class="-ta"><pre><span></span><span class="c">/* defaults */</span> <span class="p">.</span><span class="nc">football</span><span class="p">:</span><span class="nd">after</span> <span class="p">{</span> <span class="k">content</span><span class="p">:</span> <span class="s1">'football'</span><span class="p">;</span> <span class="p">}</span> <span class="c">/* override */</span> <span class="p">.</span><span class="nc">amp-geo-group-soccer</span> <span class="p">.</span><span class="nc">football</span><span class="p">:</span><span class="nd">after</span> <span class="p">{</span> <span class="k">content</span><span class="p">:</span> <span class="s1">'soccer'</span><span class="p">;</span> <span class="p">}</span> </pre></div> <p>Then it's trivial to use CSS select the correct word (i.e., football).</p> <div class="-ta"><pre><span></span><span class="p"><</span><span class="nt">div</span><span class="p">></span>The game is called <span class="p"><</span><span class="nt">span</span> <span class="na">class</span><span class="o">=</span><span class="s">"football"</span><span class="p">></</span><span class="nt">span</span><span class="p">></span>!<span class="p"></</span><span class="nt">div</span><span class="p">></span> </pre></div> <h3 id="preset-country-groups">Preset Country Groups</h3> <p>In addition to user specified country groups <code>amp-geo</code> supports preset country lists. See <a href="https://github.com/ampproject/amphtml/blob/main/extensions/amp-geo/0.1/amp-geo-presets.js"><code>amp-geo-presets.js</code></a> for the available preset lists.</p> <p> </p><div class="ap-m-tip"> <div class="ap-a-ico ap-m-tip-icon"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#speech-bubble"/></svg> </div> <div class="ap-m-tip-content"> <p></p> <p>GOOGLE AND AMP ARE PROVIDING THIS INFORMATION AS A COURTESY BUT DO NOT GUARANTEE THE ACCURACY OR COMPLETENESS OF ANY INFORMATION CONTAINED HEREIN. THIS INFORMATION IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.</p> <p> </p></div> </div><p></p> <h4 id="u.s.-california-detection">U.S. California Detection</h4> <p>The <code>amp-geo</code> component provides the <a href="https://en.wikipedia.org/wiki/ISO_3166-2">ISO 3166-2</a> information when it determines a request is from California. The <code>preset-us-ca</code> value from the preset list supports this feature.</p> <p>Additional countries may be included with the preset list as in the <code>myList</code> example below.</p> <div class="-ta"><pre><span></span><span class="p"><</span><span class="nt">amp-geo</span> <span class="na">layout</span><span class="o">=</span><span class="s">"nodisplay"</span><span class="p">></span> <span class="p"><</span><span class="nt">script</span> <span class="na">type</span><span class="o">=</span><span class="s">"application/json"</span><span class="p">></span> <span class="p">{</span> <span class="s2">"ISOCountryGroups"</span><span class="o">:</span> <span class="p">{</span> <span class="s2">"eea"</span><span class="o">:</span> <span class="p">[</span><span class="s2">"preset-eea"</span><span class="p">],</span> <span class="s2">"usca"</span><span class="o">:</span> <span class="p">[</span><span class="s2">"preset-us-ca"</span><span class="p">],</span> <span class="s2">"myList"</span><span class="o">:</span> <span class="p">[</span><span class="s2">"preset-eea"</span><span class="p">,</span> <span class="s2">"preset-us-ca"</span><span class="p">,</span> <span class="s2">"ca"</span><span class="p">,</span> <span class="s2">"au"</span><span class="p">,</span> <span class="s2">"nz"</span><span class="p">]</span> <span class="p">}</span> <span class="p">}</span> <span class="p"></</span><span class="nt">script</span><span class="p">></span> <span class="p"></</span><span class="nt">amp-geo</span><span class="p">></span> </pre></div> <h4 id="u.s.-subdivisions-detection">U.S. Subdivisions Detection</h4> <p>The <code>amp-geo</code> component provides the <a href="https://en.wikipedia.org/wiki/ISO_3166-2">ISO 3166-2</a> information when it determines a request is from US State or from the District of Columbia (Washington DC). The values are in a <code>${country}-${subdivision}</code> format and the following codes are supported.</p> <ul> <li><code>us-al</code> - Alabama</li> <li><code>us-ak</code> - Alaska</li> <li><code>us-az</code> - Arizona</li> <li><code>us-ar</code> - Arkansas</li> <li><code>us-ca</code> - California</li> <li><code>us-co</code> - Colorado</li> <li><code>us-ct</code> - Connecticut</li> <li><code>us-de</code> - Delaware</li> <li><code>us-dc</code> - District of Columbia</li> <li><code>us-fl</code> - Florida</li> <li><code>us-ga</code> - Georgia</li> <li><code>us-hi</code> - Hawaii</li> <li><code>us-id</code> - Idaho</li> <li><code>us-il</code> - Illinois</li> <li><code>us-in</code> - Indiana</li> <li><code>us-ia</code> - Iowa</li> <li><code>us-ks</code> - Kansas</li> <li><code>us-ky</code> - Kentucky</li> <li><code>us-la</code> - Louisiana</li> <li><code>us-me</code> - Maine</li> <li><code>us-md</code> - Maryland</li> <li><code>us-ma</code> - Massachusetts</li> <li><code>us-mi</code> - Michigan</li> <li><code>us-mn</code> - Minnesota</li> <li><code>us-ms</code> - Mississippi</li> <li><code>us-mo</code> - Missouri</li> <li><code>us-mt</code> - Montana</li> <li><code>us-ne</code> - Nebraska</li> <li><code>us-nv</code> - Nevada</li> <li><code>us-nh</code> - New Hampshire</li> <li><code>us-nj</code> - New Jersey</li> <li><code>us-nm</code> - New Mexico</li> <li><code>us-ny</code> - New York</li> <li><code>us-nc</code> - North Carolina</li> <li><code>us-nd</code> - North Dakota</li> <li><code>us-oh</code> - Ohio</li> <li><code>us-ok</code> - Oklahoma</li> <li><code>us-or</code> - Oregon</li> <li><code>us-pa</code> - Pennsylvania</li> <li><code>us-ri</code> - Rhode Island</li> <li><code>us-sc</code> - South Carolina</li> <li><code>us-sd</code> - South Dakota</li> <li><code>us-tn</code> - Tennessee</li> <li><code>us-tx</code> - Texas</li> <li><code>us-ut</code> - Utah</li> <li><code>us-vt</code> - Vermont</li> <li><code>us-va</code> - Virginia</li> <li><code>us-wa</code> - Washington</li> <li><code>us-wv</code> - West Virginia</li> <li><code>us-wi</code> - Wisconsin</li> <li><code>us-wy</code> - Wyoming</li> </ul> <p>Additional countries/subdivision may be included with the preset list as in the <code>usWithSubdivisions</code> example below.</p> <div class="-ta"><pre><span></span><span class="p"><</span><span class="nt">amp-geo</span> <span class="na">layout</span><span class="o">=</span><span class="s">"nodisplay"</span><span class="p">></span> <span class="p"><</span><span class="nt">script</span> <span class="na">type</span><span class="o">=</span><span class="s">"application/json"</span><span class="p">></span> <span class="p">{</span> <span class="s2">"ISOCountryGroups"</span><span class="o">:</span> <span class="p">{</span> <span class="s2">"usca"</span><span class="o">:</span> <span class="p">[</span><span class="s2">"preset-us-ca"</span><span class="p">],</span> <span class="s2">"usco"</span><span class="o">:</span><span class="p">[</span><span class="s2">"us-co"</span><span class="p">],</span> <span class="s2">"usct"</span><span class="o">:</span><span class="p">[</span><span class="s2">"us-ct"</span><span class="p">],</span> <span class="s2">"usva"</span><span class="o">:</span><span class="p">[</span><span class="s2">"us-va"</span><span class="p">],</span> <span class="s2">"usWithSubdivisions"</span><span class="o">:</span> <span class="p">[</span><span class="s2">"us-ca"</span><span class="p">,</span> <span class="s2">"us-co"</span><span class="p">,</span> <span class="s2">"us-ct"</span><span class="p">,</span> <span class="s2">"us-va"</span><span class="p">]</span> <span class="p">}</span> <span class="p">}</span> <span class="p"></</span><span class="nt">script</span><span class="p">></span> <span class="p"></</span><span class="nt">amp-geo</span><span class="p">></span> </pre></div> <h3 id="render-blocking">Render Blocking</h3> <p>By default, the <code>amp-geo</code> component is not render blocking. That is, the page will load and elements will render even if <code>amp-geo</code> has not yet loaded and executed. If it's important that certain elements are never rendered in a specific geography, use the <code>amp-geo-pending</code> class to provide selective render blocking. This is implemented by the publisher by adding <code>amp-geo-pending</code> to the <code><body></code> element. When the <code>amp-geo</code> script loads, it removes the <code>amp-geo-pending</code> class at the same time as it adds the <code>amp-iso-country...</code> and <code>amp-geo-group-...</code> classes.</p> <p><em>Example</em>: To always suppress an element that has the <code>foo</code> class in the United States, set <code><body class="amp-geo-pending"></code>, and in the CSS include the following:</p> <div class="-ta"><pre><span></span><span class="p">.</span><span class="nc">amp-geo-pending</span> <span class="p">.</span><span class="nc">foo</span><span class="o">,</span> <span class="p">.</span><span class="nc">amp-iso-country-us</span> <span class="p">.</span><span class="nc">foo</span> <span class="p">{</span> <span class="k">display</span><span class="p">:</span> <span class="kc">none</span><span class="p">;</span> <span class="p">}</span> </pre></div> <p>This CSS hides the element that has the <code>foo</code> class until <code>amp-geo</code> has loaded and continues to hide it if the country is <code>us</code>.</p> <p> </p><div class="ap-m-tip"> <div class="ap-a-ico ap-m-tip-icon"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#speech-bubble"/></svg> </div> <div class="ap-m-tip-content"> <p></p> <p>Elements such as <code>amp-ad</code> and <code>amp-iframe</code> do not make external network requests when set to <code>display: none</code>.</p> <p> </p></div> </div><p></p> <p> </p> <h3 id="integration-with-amp-bind">Integration with amp-bind</h3> <p>If the <code>AmpBind</code> key is present in the configuration, <code>amp-geo</code> inserts an <code>amp-state</code> tag containing the current country and group information. Using the football example above, set the <code>AmpBind</code> flag to true to enable <code>amp-bind</code> integration.</p> <div class="-ta"><pre><span></span><span class="p"><</span><span class="nt">amp-geo</span> <span class="na">layout</span><span class="o">=</span><span class="s">"nodisplay"</span><span class="p">></span> <span class="p"><</span><span class="nt">script</span> <span class="na">type</span><span class="o">=</span><span class="s">"application/json"</span><span class="p">></span> <span class="p">{</span> <span class="s2">"AmpBind"</span><span class="o">:</span> <span class="kc">true</span><span class="p">,</span> <span class="s2">"ISOCountryGroups"</span><span class="o">:</span> <span class="p">{</span> <span class="s2">"soccer"</span><span class="o">:</span> <span class="p">[</span><span class="s2">"au"</span><span class="p">,</span> <span class="s2">"ca"</span><span class="p">,</span> <span class="s2">"ie"</span><span class="p">,</span> <span class="s2">"nz"</span><span class="p">,</span> <span class="s2">"us"</span><span class="p">,</span> <span class="s2">"za"</span><span class="p">],</span> <span class="s2">"football"</span><span class="o">:</span> <span class="p">[</span><span class="s2">"unknown"</span><span class="p">]</span> <span class="p">}</span> <span class="p">}</span> <span class="p"></</span><span class="nt">script</span><span class="p">></span> <span class="p"></</span><span class="nt">amp-geo</span><span class="p">></span> </pre></div> <p>If the user were in Canada, the inserted <code>amp-state</code> would be as follows:</p> <div class="-ta"><pre><span></span><span class="p"><</span><span class="nt">amp-state</span> <span class="na">id</span><span class="o">=</span><span class="s">"ampGeo"</span><span class="p">></span> <span class="p"><</span><span class="nt">script</span> <span class="na">type</span><span class="o">=</span><span class="s">"application/json"</span><span class="p">></span> <span class="p">{</span> <span class="s2">"ISOCountry"</span><span class="o">:</span> <span class="s2">"ca"</span><span class="p">,</span> <span class="s2">"soccer"</span><span class="o">:</span> <span class="kc">true</span> <span class="p">}</span> <span class="p"></</span><span class="nt">script</span><span class="p">></span> <span class="p"></</span><span class="nt">amp-state</span><span class="p">></span> </pre></div> <p> </p> <h3 id="variable-substitution"><a name="variable-substitution"></a>Variable substitution</h3> <p>The country code is also available via AMP variable substitution:</p> <p><code>AMP_GEO</code> or <code>${ampGeo}</code> returns the list of matched groups (comma delimited). <code>AMP_GEO(ISOCountry)</code> or <code>${ampGeo(ISOCountry)}</code> returns the country code (or <code>unknown</code>).</p> <p>The subdivision code is also available via AMP variable substitution:</p> <p><code>AMP_GEO</code> or <code>${ampGeo}</code> returns the list of matched groups (comma delimited). <code>AMP_GEO(ISOSubdivision)</code> or <code>${ampGeo(ISOSubdivision)}</code> returns the country subdivision (or <code>unknown</code>).</p> <h3 id="caching">Caching</h3> <p>The <code>amp-geo</code> JavaScript file is served with a 30-minute cache lifetime (<code>Cache-control: private, max-age=1800</code>) to prevent use of stale geolocation data and to ensure that the geolocation is accurate when a user moves location.</p> <h3 id="pre-rendering">Pre-rendering</h3> <p>The <code>amp-geo</code> component supports pre-rendering. If the document is served from the publisher origin and it already contains a class matching <code>amp-iso-country-*</code> <code>amp-geo</code> respects that value. <code>amp-geo</code> will use the supplied country and configuration to supply data to cooperating AMP extensions (e.g., <code>amp-consent</code>). If a pre-rendered country code is detected, the document will not be modified by <code>amp-geo</code> to add classes for country group or <code>amp-state</code>.</p> <p>However, if the document is served via one of the <a href="https://github.com/ampproject/amphtml/blob/main/extensions/amp-geo/../../build-system/global-configs/caches.json">AMP caches</a>, <code>amp-geo</code> removes and replaces any supplied geolocation classes and, if the <code>amp-bind</code> configuration key is true, updates <code><amp-state id="ampGeo"></code> accordingly. This allows publishers to use their own geolocation code when the document is served directly from their origin while retaining dynamic configuration when served from a cache.</p> <p>Caches that wish to pre-render <code>amp-geo</code> should <a href="https://github.com/ampproject/amphtml/issues/new/choose">open an issue</a> requesting to be removed from the pre-render override.</p> <h3 id="self-hosting">Self Hosting</h3> <p>Publishers and caches that re-host AMP JavaScript files must implement server-side patching of the <code>amp-geo-0.1.js</code> file or pre-rendering (see above).</p> <p>The file served from <code>cdn.ampproject.org</code> should not be used as a base for patching because it will have already been patched when downloaded. Instead the base <code>./dist/v0/amp-geo-0.1.js</code> file should be used.</p> <p>The string <code>{{AMP_ISO_COUNTRY_HOTPATCH}}</code> must be replaced at serving time with the lowercase 2 letter <a href="https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2" title="ISO 3166-1 alpha-2">ISO 3166-1 alpha-2</a> country code corresponding to the requesting IP address. This value should be padded to match the original length to avoid breaking the <code>amp-geo-0.1.max.js.map</code> file. If the country cannot be determined "unknown" country can be indicated by either leaving the file un-patched or patching with a string of spaces of equal length.</p> <h3 id="debugging">Debugging</h3> <p>Adding <code>#amp-geo=XX</code> to the document url forces the country to appear as the country <code>XX</code>. This allows you to test without having to VPN to a country. For security reasons, to prevent sharing of geo-spoofing urls, this feature is only available to users who have enabled the <a href="https://amp.dev/documentation/guides-and-tutorials/learn/experimental">Experimental Channel</a> or who are testing locally (i.e., <code>amp-geo.js</code> is served in development mode via <a href="https://github.com/ampproject/amphtml/blob/main/docs/developing.md"><code>amp serve</code></a>).</p> <p> </p><div class="ap-m-tip"> <div class="ap-a-ico ap-m-tip-icon"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#speech-bubble"/></svg> </div> <div class="ap-m-tip-content"> <p></p> <p>Debugging in DevChannel may not work in Safari due to <a href="https://webkit.org/blog/8311/intelligent-tracking-prevention-2-0/">ITP</a>.</p> <p> </p></div> </div><p></p> <h2 id="validation">Validation</h2> <p>See <a href="https://github.com/ampproject/amphtml/blob/main/extensions/amp-geo/validator-amp-geo.protoascii"><code>amp-geo</code> rules</a> in the AMP validator specification.</p> </section> <section class="ap--help"> <div class="-ff"> <span class="-fl">Need more help?</span> <p class="-fh">You've read this document a dozen times but it doesn't really cover all of your questions? Maybe other people felt the same: reach out to them on Stack Overflow.</p> <a href="https://stackoverflow.com/questions/tagged/amp-html" rel="noopener" class="-n"> <svg class="ap-a-ico -i"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#external"/></svg> <span class="-r">Go to Stack Overflow</span> </a> <div class="-fp"></div> <span class="-fl">Found a bug or missing a feature?</span> <p class="-fh">The AMP project strongly encourages your participation and contributions! We hope you'll become an ongoing participant in our open source community but we also welcome one-off contributions for the issues you're particularly passionate about.</p> <a href="https://github.com/ampproject/amphtml" rel="noopener" class="-n link-preview-1"> <svg class="ap-a-ico -i"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#external"/></svg> <span class="-r">Go to GitHub</span> </a> <div class="-fp"></div> </div> </section> </div> </main> <amp-sidebar id="sidebar-left" class="ap--ampsidebar i-amphtml-layout-nodisplay" layout="nodisplay" side="left" hidden="hidden" i-amphtml-layout="nodisplay"> <nav class="ap--ampsidebar-toolbar" toolbar="(min-width: 768px)" toolbar-target="ap--sidebar-content"> <ul> <div class="ap-m-format-toggle"> <button class="ap-m-format-toggle-selected ap-m-format-toggle-link-websites"> <span class="ap-a-ico"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#amp-websites"/></svg> </span> <span>websites</span> <span 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