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Official statement

The crawl budget includes two aspects: the technical limitations of the server and the demand from Google based on the perceived importance of the pages. Even with a fast server, Google may limit crawling if it finds the pages to be of little use.
185:36
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Extracted from a Google Search Central video

⏱ 912h44 💬 EN 📅 05/03/2021 ✂ 20 statements
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Other statements from this video 19
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  5. 146:15 Les pages par ville sont-elles vraiment toutes des doorway pages condamnées par Google ?
  6. 203:58 Faut-il vraiment commencer petit pour débloquer son crawl budget ?
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  8. 259:19 Pourquoi Google refuse-t-il de fournir des données Voice Search dans Search Console ?
  9. 295:52 Comment forcer Google à rafraîchir vos fichiers JavaScript et CSS lors du rendering ?
  10. 317:32 Comment mapper les URLs et vérifier les redirects en migration pour ne pas perdre le ranking ?
  11. 353:48 Faut-il vraiment renseigner les dates dans les données structurées ?
  12. 390:26 Faut-il vraiment modifier la date d'un article à chaque mise à jour ?
  13. 432:21 Faut-il vraiment limiter le nombre de balises H1 sur une page ?
  14. 450:30 Les headings ont-ils vraiment autant d'importance que le pense Google ?
  15. 555:58 Les mots-clés LSI sont-ils vraiment utiles pour le référencement Google ?
  16. 585:16 Combien de liens par page faut-il pour optimiser le PageRank interne ?
  17. 674:32 Les requêtes JSON grèvent-elles vraiment votre crawl budget ?
  18. 717:14 Faut-il vraiment bloquer les fichiers JSON dans votre robots.txt ?
  19. 789:13 Google peut-il deviner qu'une URL est dupliquée sans même la crawler ?
📅
Official statement from (5 years ago)
TL;DR

Google limits the crawl of your pages based on two distinct criteria: the technical capacity of your server AND the perceived importance of your content. Therefore, an ultra-fast server does not guarantee intensive crawling if Google deems your pages to be of little use to its users. To maximize your crawl budget, you must simultaneously work on technical performance and the actual value of your URLs.

What you need to understand

What exactly is crawl budget? <\/h3>

The crawl budget <\/strong> refers to the number of pages that Googlebot will explore on your site during a given period. This concept is crucial for large sites (thousands of URLs), as it determines what portion of your content will actually be discovered and indexed.<\/p>

Mueller clarifies that this budget does not solely depend on your technical infrastructure. Two factors come into play: on one hand, the capacity of your server <\/strong> to respond quickly without overloading — Google does not want your site to crash. On the other hand, the crawl demand <\/strong> calculated by Google based on the importance it attributes to your pages.<\/p>

How does Google assess the importance of your pages? <\/h3>

Google does not crawl everything evenly. It prioritizes pages deemed useful <\/strong>: fresh content, popular URLs receiving clicks, frequently updated pages, sections of the site with high organic traffic.<\/p>

Conversely, if your site has many duplicate pages <\/strong>, low-value URLs (facet filters without unique content, empty archives), or outdated content that no one views, Google will reduce its crawl — even if your server can handle the load without issue.<\/p>

Why does this distinction change the game for SEOs? <\/h3>

Many practitioners believed that optimizing server response time and increasing bandwidth would be enough to achieve a massive crawl <\/strong>. This statement resets expectations: technical performance is necessary, but not sufficient.<\/p>

If Google considers that a large part of your inventory is not useful to users, it will not waste resources crawling it—even if you could handle 100 requests per second. It’s a logic of algorithmic efficiency <\/strong>: Google allocates its crawl where it anticipates the best return in terms of discovering quality content.<\/p>

  • The crawl budget combines technical capacity AND editorial relevance <\/strong> — not just server speed.<\/li>
  • Google prioritizes useful pages <\/strong>: freshness, popularity, user engagement.<\/li>
  • Multiplying low-value URLs <\/strong> (useless facets, duplicates, empty archives) reduces the overall crawl of the site.<\/li>
  • A fast server does not compensate for a mediocre inventory <\/strong> — optimization must be dual: technical AND content.<\/li><\/ul>

SEO Expert opinion

Does this statement align with field observations? <\/h3>

Absolutely. Crawl budget audits on e-commerce sites with tens of thousands of references show that Googlebot systematically ignores entire categories <\/strong> — even when the server responds in 200 ms. Server logs reveal that duplicate pages, non-canonicalized facet filters, or outdated product archives receive almost no crawl.<\/p>

In contrast, sections of the site with fresh content and organic traffic <\/strong> (popular product listings, active blog) are crawled multiple times a day. This observation fully validates Mueller's statement: Google arbitrates based on perceived value, not just technical availability.<\/p>

What nuances should be considered? <\/h3>

Google remains vague about the exact metrics <\/strong> that determine 'perceived importance.' URL popularity, click-through rate in SERPs, content freshness, depth in the hierarchy — all this plays a role, but [To be verified] <\/strong>: no numerical threshold is publicly communicated. It’s impossible to know precisely how many orphan pages or how many duplicates trigger a reduction in crawl.<\/p>

Another point: Mueller speaks of 'crawl limitation' without specifying if this also impacts the final indexing <\/strong>. Can a poorly crawled page still be indexed if it receives powerful backlinks? [To be verified] <\/strong> — official data is lacking on this interaction between crawl budget and indexing.<\/p>

In what cases does this rule not apply? <\/h3>

For small sites with fewer than 1000 pages <\/strong>, crawl budget is not an issue. Google crawls the entire inventory regularly, unless major technical errors (blocking robots.txt, unstable server) hinder exploration.<\/p>

However, as soon as your inventory exceeds 10,000 URLs — especially on e-commerce platforms or listing sites — managing the crawl budget becomes critical <\/strong>. This is where Mueller's statement makes complete sense: you can no longer rely solely on good hosting to ensure exhaustive exploration of your catalog.<\/p>

Practical impact and recommendations

What concrete steps should be taken to optimize your crawl budget? <\/h3>

Start with a server log audit <\/strong>: analyze which sections of your site Googlebot crawls the most and which it ignores. This reveals low perceived value areas that need improvement or removal from indexing (noindex, robots.txt, canonicals).<\/p>

Next, focus on reducing unnecessary inventory <\/strong>. Block facet filters that create duplicate content, canonicalize variants of URLs without added value, and remove or redirect outdated pages. The goal: concentrate the crawl on your strategic URLs.<\/p>

What mistakes should be absolutely avoided? <\/h3>

Do not multiply URLs without unique content <\/strong> (infinite filters, poorly managed paginations, empty archives). Each URL created dilutes the overall crawl — if it adds nothing, it penalizes the exploration of the rest of the site.<\/p>

Also, avoid believing that an ultra-fast CDN <\/strong> or an oversized server will solve everything. Technical performance is a prerequisite, not a magic solution. If your pages lack editorial relevance, Google will limit its crawl regardless.<\/p>

How to check if your site is properly optimized? <\/h3>

Monitor crawl metrics <\/strong> in Google Search Console: number of pages crawled per day, crawl distribution by URL type, crawl errors. A crawl focused on your strategic pages (active product listings, fresh content) is a good sign.<\/p>

Then compare the number of pages crawled to the indexed volume <\/strong>. If Google crawls 10,000 pages but only indexes 2,000, you have a quality issue — not a technical problem. This is a clear signal that Google considers the majority of your inventory to be of little use.<\/p>

  • Audit your server logs to identify sections that are under-crawled or ignored by Googlebot.<\/li>
  • Reduce the inventory of unnecessary URLs: block duplicate facets, canonicalize variants, remove outdated pages.<\/li>
  • Prioritize freshness and editorial quality on your strategic pages to maximize crawl demand.<\/li>
  • Monitor crawl metrics in Search Console: volume, distribution, crawl/indexing ratio.<\/li>
  • Do not rely solely on server performance — optimizing crawl budget is primarily editorial.<\/li>
  • If your inventory exceeds 10,000 URLs, consider a pagination or segmentation strategy based on importance.<\/li><\/ul>
    Optimizing the crawl budget requires a dual approach: technical (fast server, clean architecture) and editorial (unique content, high-value pages). These adjustments can be complex to manage alone, especially on high-volume sites. Enlisting a specialized SEO agency can provide a precise audit of server logs, a crawl-oriented architecture redesign, and support in prioritizing strategic URLs — all of which ensure that your crawl budget is utilized effectively.<\/div>

❓ Frequently Asked Questions

Le crawl budget concerne-t-il tous les sites ou seulement les gros inventaires ?
Le crawl budget devient un enjeu critique au-delà de 10 000 URLs environ. Pour les petits sites (moins de 1000 pages), Google crawle généralement l'intégralité de l'inventaire régulièrement, sauf problème technique majeur.
Un serveur très rapide peut-il compenser un contenu de faible qualité ?
Non. Google limite son crawl si vos pages sont jugées peu utiles, même si votre serveur répond instantanément. La performance technique est un prérequis, pas une solution au manque de pertinence éditoriale.
Comment Google détermine-t-il qu'une page est importante ?
Plusieurs signaux entrent en jeu : fraîcheur du contenu, popularité (clics organiques), fréquence de mise à jour, profondeur dans l'arborescence. Google priorise les URLs qui apportent de la valeur aux utilisateurs.
Les pages peu crawlées peuvent-elles tout de même être indexées ?
C'est flou. Google ne précise pas si un crawl réduit impacte systématiquement l'indexation. Une page avec des backlinks puissants pourrait théoriquement être indexée malgré un crawl faible, mais aucune donnée officielle ne valide ce scénario.
Faut-il bloquer les URLs inutiles dans robots.txt ou les passer en noindex ?
Cela dépend. Le robots.txt bloque le crawl (économise le budget), mais empêche Google de voir les balises noindex. Pour les facettes dupliquées, privilégiez les canonicals. Pour les archives obsolètes, le robots.txt ou la suppression pure.

🎥 From the same video 19

Other SEO insights extracted from this same Google Search Central video · duration 912h44 · published on 05/03/2021

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