Official statement
Other statements from this video 49 ▾
- 1:38 Google suit-il vraiment les liens HTML masqués par du JavaScript ?
- 3:43 Faut-il vraiment optimiser le premier lien d'une page pour le SEO ?
- 3:43 Google combine-t-il vraiment les signaux de plusieurs liens pointant vers la même page ?
- 5:20 Les liens site-wide dans le menu et le footer diluent-ils vraiment le PageRank de vos pages stratégiques ?
- 6:22 Faut-il vraiment nofollow les liens site-wide vers vos pages légales pour optimiser le PageRank ?
- 7:24 Faut-il vraiment garder le nofollow sur vos liens footer et pages de service ?
- 10:10 Search Console Insights sans Analytics : pourquoi Google rend-il impossible l'utilisation solo ?
- 11:08 Le nofollow influence-t-il encore le crawl sans transmettre de PageRank ?
- 11:08 Le nofollow bloque-t-il vraiment l'indexation ou Google crawle-t-il quand même ces URLs ?
- 13:50 Pourquoi Google refuse-t-il de communiquer sur tous ses incidents d'indexation ?
- 15:58 Faut-il vraiment indexer toutes les pages paginées pour optimiser son SEO ?
- 15:59 Faut-il vraiment indexer toutes les pages de pagination pour optimiser son SEO ?
- 19:53 Les paramètres d'URL sont-ils encore un problème pour le référencement naturel ?
- 19:53 Les paramètres d'URL sont-ils vraiment devenus un non-sujet SEO ?
- 21:50 Google bloque-t-il vraiment l'indexation des nouveaux sites ?
- 23:56 Les liens dans les tweets embarqués influencent-ils vraiment votre SEO ?
- 25:33 Les sitemaps sont-ils vraiment indispensables pour l'indexation Google ?
- 26:03 Comment Google découvre-t-il vraiment vos nouvelles URLs ?
- 27:28 Pourquoi Google impose-t-il un canonical sur TOUTES les pages AMP, même standalone ?
- 27:40 Le rel=canonical est-il vraiment obligatoire sur toutes les pages AMP, même standalone ?
- 28:09 Faut-il vraiment déployer hreflang sur l'intégralité d'un site multilingue ?
- 28:41 Faut-il vraiment implémenter hreflang sur toutes les pages d'un site multilingue ?
- 29:08 AMP est-il vraiment un facteur de vitesse pour Google ?
- 29:16 Faut-il encore miser sur AMP pour optimiser la vitesse et le ranking ?
- 29:50 Pourquoi Google mesure-t-il les Core Web Vitals sur la version de page que vos visiteurs consultent réellement ?
- 30:20 Les Core Web Vitals mesurent-ils vraiment ce que vos utilisateurs voient ?
- 31:23 Faut-il manuellement désindexer les anciennes URLs de pagination après un changement d'architecture ?
- 31:23 Faut-il vraiment désindexer manuellement vos anciennes URLs de pagination ?
- 32:08 La pub sur votre site tue-t-elle votre SEO ?
- 32:48 La publicité sur un site nuit-elle vraiment au classement Google ?
- 34:47 Le rel=canonical en syndication est-il vraiment fiable pour contrôler l'indexation ?
- 34:47 Le rel=canonical protège-t-il vraiment votre contenu syndiqué du vol de ranking ?
- 38:14 Les alertes de sécurité dans Search Console bloquent-elles vraiment le crawl de Google ?
- 38:14 Un site hacké perd-il son crawl budget suite aux alertes de sécurité Google ?
- 39:20 Les liens dans les guest posts ont-ils vraiment perdu toute valeur SEO ?
- 39:20 Les liens issus de guest posts ont-ils vraiment une valeur SEO nulle ?
- 40:55 Pourquoi Google ignore-t-il les dates de modification identiques dans vos sitemaps ?
- 40:55 Pourquoi Google ignore-t-il les dates lastmod de votre sitemap XML ?
- 42:00 Faut-il vraiment mettre à jour la date lastmod du sitemap à chaque modification mineure ?
- 42:21 Un sitemap mal configuré réduit-il vraiment votre crawl budget ?
- 43:00 Un sitemap mal configuré peut-il vraiment réduire votre crawl budget ?
- 44:34 Faut-il vraiment choisir entre réduction du duplicate content et balises canonical ?
- 44:34 Faut-il vraiment éliminer tout le duplicate content ou miser sur le rel=canonical ?
- 45:10 Faut-il vraiment configurer la limite de crawl dans Search Console ?
- 45:40 Faut-il vraiment laisser Google décider de votre limite de crawl ?
- 47:08 Les redirections 301 en interne diluent-elles vraiment le PageRank ?
- 47:48 Les redirections 301 internes en cascade font-elles vraiment perdre du jus SEO ?
- 49:53 L'History API JavaScript peut-elle vraiment forcer Google à changer votre URL canonique ?
- 49:53 JavaScript et History API : Google peut-il vraiment traiter ces changements d'URL comme des redirections ?
Google crawls and processes HTML links even if a JavaScript event intercepts the click—as long as the <a> tag remains in the rendered DOM. The problem only arises when JavaScript completely removes the link from the HTML code after rendering. For mobile dropdown menus with JavaScript listeners, no worries: if the href attribute exists in the final code, Google will utilize it.
What you need to understand
What does Google really see when JavaScript manages navigation?
This question comes up repeatedly since JavaScript became prevalent in modern web architectures. Google analyzes the HTML code as it exists after JavaScript execution, which is known as the final rendering or rendered DOM. If an <a href="..."> link is present in this DOM, Googlebot treats it like any standard HTML link.
It doesn't matter if a JavaScript event handler (onclick, addEventListener) captures the click to trigger an animation, open a dropdown, or load content via Ajax. As long as the <a> tag with its href attribute remains in the code, Google extracts the URL and follows the link. The fact that the user never actually clicks on this link—because a JavaScript function intervenes first—doesn't affect the crawl.
When does a link become invisible to Google?
The only problematic scenario occurs when JavaScript completely removes the link from the rendered DOM. Specifically: a script removes the <a> tag, or replaces the HTML link with a <div> that is entirely managed by JavaScript. In this case, Google sees no trace of the link in the final HTML.
This typically happens with poorly configured frameworks where navigation occurs solely through DOM manipulation via JavaScript components. If no href exists at rendering time, the link does not exist for Googlebot. The target page remains orphaned, invisible to the crawl.
How does this clarification change the game for mobile menus?
Many developers use JavaScript-driven dropdown menus to enhance mobile UX: a toggle button shows/hides links via CSS or DOM, and a JavaScript listener manages the opening. The concern? That Google ignores these links because they are "hidden" or controlled by external code.
Mueller clarifies: If the HTML link remains in the rendered DOM, Google sees and follows it. Whether the menu is closed by default, whether links are hidden via CSS (display:none, visibility:hidden), or whether a JavaScript event captures the click makes no impact. Google analyzes the final HTML, not user behavior. Therefore, a well-coded mobile menu does not penalize internal linking.
- An HTML link present in the rendered DOM is crawled, even if JavaScript intercepts the user's click.
- Only the complete removal of the link from the DOM (via JavaScript) prevents Google from detecting it.
- Mobile dropdown menus with HTML links + JavaScript listeners pose no crawl issues as long as the
<a href>tags remain. - Google relies on the final rendered DOM, not on the raw source code sent from the server before JS execution.
- CSS hiding techniques (display:none, opacity:0) do not prevent Google from following a valid HTML link.
SEO Expert opinion
Is this statement consistent with what we observe in the field?
Yes, and it’s one of the few times when the official discourse aligns perfectly with empirical tests. Since Google improved its JavaScript rendering engine (upgrading to Chromium 109+ in 2023), HTML links present after JS execution are consistently crawled. Log audits confirm that Googlebot follows these links, even when a JavaScript event handles the click on the client side.
What changes with this clarification is that it definitively validates a common practice: using JavaScript to enhance UX without breaking the linking structure. For years, some SEOs discouraged any JavaScript listeners on navigation links, fearing a crawl impact. Let’s be honest: this fear was unfounded as long as the HTML remained clean.
What nuances should be added to this rule?
Mueller talks about the rendered DOM, meaning what Google sees after executing JavaScript. The catch? If your site relies on heavy JavaScript that takes several seconds to execute, or if the JS never loads (network error, timeout), Google may crawl an incomplete version of the DOM. In this case, a link that should appear after JS execution may remain invisible.
Another point: Mueller says "Google treats the link normally," but that doesn’t mean all links carry the same weight. A link that exists only in a mobile dropdown menu closed by default remains crawlable but potentially less valued than a link that is permanently visible in the main content. [To be verified]: no official data precisely quantifies the PageRank difference transmitted, but field observations suggest a disparity.
In what scenarios does this rule not apply?
If your site uses a full JavaScript architecture without server-side rendering (SSR) or pre-rendering, there’s a risk that Google may never see certain links. A pure client-side React/Vue/Angular site that generates the entire DOM via JS may pose issues if execution fails or if the crawl budget is exceeded before full rendering.
Another edge case: links dynamically generated after a mandatory user interaction (infinite scroll, “load more” button). If the link only exists in the DOM after a click or scroll, and that trigger is not automatic, Google may miss these links. The crawl is based on the initial rendering, not all possible DOM variations due to interactions.
Practical impact and recommendations
What should you check on your site?
First step: inspect the rendered DOM of your key pages using the URL inspection tool in Google Search Console, or directly in Chrome DevTools after disabling the cache. Check that all navigation links (main menu, footer, breadcrumb, pagination) appear in the final HTML with a valid href attribute.
Next, compare the initial source code (CTRL+U in Chrome) with the rendered DOM (DevTools > Elements). If critical links only exist in the rendered DOM (therefore added by JavaScript), ensure that Google has the time and resources to execute your JS. A rendering time exceeding 5 seconds or a high JavaScript failure rate in Search Console signals a problem.
What mistakes should you absolutely avoid?
Never replace an <a href> tag with a <div> or <span> clickable element driven solely by JavaScript. Even if it works for the user, Google loses track of the link. The same goes for links generated by frameworks that create "pseudo-routes" without ever injecting a real href into the DOM.
Another classic trap: using href="#" or href="javascript:void(0)" while counting on JavaScript to manage all navigation. Google follows these links, but they lead nowhere. The result? A broken internal linking structure, orphaned pages, wasted crawl budget on empty anchors.
How can you ensure your mobile menu remains crawlable?
Test your mobile dropdown menus in "CSS disabled" mode: if the links remain accessible in the raw HTML, you’re good. A good mobile menu with a JavaScript listener should maintain a semantic HTML structure: <nav>, <ul>, <li>, <a href>. JavaScript should merely add/remove a CSS class to show/hide, without manipulating the DOM to remove links.
Finally, monitor the index coverage reports in Search Console. If important pages show up as "Detected but not indexed" or "Crawled but not indexed," check that the internal links pointing to them are indeed present in the rendered DOM. A log audit can also reveal if Googlebot accesses the URLs via these links or if it ignores them.
- Inspect the rendered DOM of all key pages via Search Console or DevTools
- Ensure that each navigation link has a valid
hrefattribute in the final HTML - Compare raw source code and rendered DOM to detect links injected by JS
- Make sure the JavaScript rendering time stays under 5 seconds
- Avoid
href="#"orhref="javascript:void(0)"on navigation links - Maintain a semantic HTML structure even when managing click events via JavaScript
href, Google follows them. JavaScript can manage clicks without breaking the crawl. But beware of JavaScript execution time and DOM manipulations that remove links. These optimizations may seem simple in theory, but their technical implementation on complex architectures (modern frameworks, SPAs, e-commerce sites) often requires in-depth diagnosis and fine-tuning. If you encounter crawl or indexing issues related to JavaScript, consulting a specialized SEO agency can accelerate resolution and avoid costly mistakes.❓ Frequently Asked Questions
Un lien masqué en CSS (display:none) est-il crawlé par Google ?
Si JavaScript remplace un lien <a> par un <div> cliquable, Google le suit-il ?
Les menus déroulants mobiles avec écouteur JavaScript posent-ils problème pour le SEO ?
Comment vérifier que Google voit bien mes liens après exécution JavaScript ?
Un lien avec href="#" ou href="javascript:void(0)" est-il suivi par Google ?
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Other SEO insights extracted from this same Google Search Central video · duration 55 min · published on 21/08/2020
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