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Official statement

Webmasters can indirectly control their crawl budget through the crawl statistics in Search Console. They can limit the maximum number of requests per second (QPS) that Googlebot makes to their site to avoid overloading the server during traffic spikes.
🎥 Source video

Extracted from a Google Search Central video

💬 EN 📅 25/08/2022 ✂ 13 statements
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Other statements from this video 12
  1. Faut-il vraiment se préoccuper du crawl budget pour votre site ?
  2. Comment Google définit-il réellement le crawl budget et quels leviers peut-on actionner ?
  3. Le crawl budget est-il un concept inventé par Google ou par les SEO ?
  4. Google n'indexe-t-il vraiment qu'une fraction du web à cause de ses coûts de stockage ?
  5. Les requêtes POST plombent-elles vraiment votre crawl budget ?
  6. Le crawl budget d'une nouvelle section est-il hérité de la qualité du site principal ?
  7. Les codes 503 et 429 peuvent-ils vraiment réduire votre crawl budget ?
  8. HTTP/2 améliore-t-il vraiment votre crawl budget ?
  9. Pourquoi vos URLs 'découvertes mais non crawlées' révèlent-elles un problème de fond ?
  10. Faut-il bloquer l'indexation de vos fichiers JavaScript pour optimiser le crawl budget ?
  11. Les 404 et robots.txt gaspillent-ils vraiment votre crawl budget ?
  12. Faut-il bloquer vos fichiers JavaScript décoratifs pour optimiser votre crawl budget ?
📅
Official statement from (3 years ago)
TL;DR

Google confirms that webmasters can indirectly control their crawl budget through the crawl statistics in Search Console. The main lever: limiting the maximum number of requests per second (QPS) that Googlebot makes to avoid overloading the server. Partial control then, not total.

What you need to understand

What does Google mean by "indirect" control of crawl budget?

Gary Illyes makes it clear: the control is indirect. You don't tell Google which pages to explore first, or how often to return to specific segments of your site. What you have at your disposal is a rate limiter — a ceiling for QPS (queries per second) that you set in Search Console to prevent Googlebot from bringing your servers to their knees.

Concretely, you protect your infrastructure. You don't manage Google's crawl strategy, you limit the technical damage. A significant nuance.

Why limit the number of Googlebot requests per second?

Because Googlebot can be resource-hungry. On a site with thousands (or millions) of URLs, crawl spikes can cause server slowdowns, or even 500 or 503 errors if your infrastructure isn't sized to handle the load.

Limiting QPS allows you to smooth out bot activity. It's especially useful if your server shares resources with other critical services — for example, an e-commerce site whose front-end must remain responsive at all times. Sacrificing some crawl speed to ensure availability: it's a legitimate trade-off.

What are the risks of too strict QPS limitation?

If you throttle Googlebot too much, you slow down the discovery and indexing of your content. On a site with a high publication rate — a media outlet, a large e-commerce site with thousands of product pages updated daily — this is a direct problem. Your new pages will take longer to appear in the index.

The balance is delicate. Too loose, you risk server saturation. Too tight, you slow down your own indexing. You need to test, monitor, and adjust based on your actual traffic spikes and server capacity.

  • Indirect control: you limit load, not the crawl strategy itself
  • Adjustable QPS in Search Console's crawl statistics
  • Primary objective: protect the server during traffic spikes
  • Risk: too strict limitation slows down indexing of new pages
  • No fine-grained control over which URLs are crawled first or how often to revisit them

SEO Expert opinion

Is this statement consistent with what we observe in the field?

Yes, it is. SEOs managing complex infrastructure — heavy e-commerce platforms, high-volume media sites — know that crawl budget is a limited resource. Google neither wants to nor can crawl the entire web continuously at full speed. Limiting QPS is therefore a pragmatic compromise.

Now let's be honest: it's just one lever. If your architecture generates millions of useless URLs — sort parameters, filters, sessions — throttling QPS won't solve anything. You're just slowing down the bleeding. The real issue remains structural site optimization.

What nuances should be added to this statement?

Gary talks about "indirect control" and that's the key word. You don't pilot where Googlebot goes, or what it explores first. You simply cap its technical appetite. True crawl budget management happens elsewhere: quality of internal linking, URL depth, logical architecture, robots.txt, strategic noindex, clean canonicals, proper pagination, targeted XML sitemap.

Another point — [To verify] — Google provides no numerical guidance on what a "reasonable" QPS is, or the actual impact of limitation on indexing speed. Everything is left to the webmaster's discretion. No public data on the correlation between limited QPS and average indexing time for a new URL. We're flying blind.

In what cases is this setting useless?

If your site generates fewer than 50–100 pages per day and your server is holding up, limiting QPS will have no positive effect. Worse: you risk slowing down indexing for no good reason. This lever is relevant for high-volume sites, not for a WordPress blog or a small business website.

Warning: Limiting QPS without analyzing your server logs and actual load curves is shooting in the dark. Before making any changes, verify that you actually have an overload problem caused by crawling. Otherwise, let Google do its thing.

Practical impact and recommendations

What should you do concretely to adjust Googlebot's QPS?

Go to Google Search Console > Settings > Crawl stats. You'll find a graph of requests per day and, more importantly, an option to limit crawl rate. By default, Google manages it. If you enable manual limitation, you can set a ceiling for requests per second.

Before touching this setting, analyze your server logs to identify crawl spikes and cross-reference them with your actual traffic spikes. If Googlebot crawls heavily during your peak user traffic hours, you have legitimate grounds to set a limit. Otherwise, let it be.

What mistakes should you avoid when managing crawl budget?

Don't confuse QPS limitation with crawl budget optimization. Limiting throughput doesn't fix poor site architecture. If you have 10,000 unnecessary paginated URLs, infinite facets, un-canonicalized duplicates, throttling Googlebot will only slow down the discovery of your useful pages — without fixing the underlying problem.

Another common mistake: enabling limitation without monitoring impact. If you cap too low, you risk delaying indexing of new strategic pages — product launches, in-depth articles, SEO landing pages. Track your indexing curves in Search Console after each adjustment.

How do you verify if my site benefits (or suffers) from this setting?

Compare the average crawl rate before/after limitation in the crawl statistics. Also look at average page download time: if it drops after limiting QPS, that's a good sign — your server is breathing easier. Conversely, if download time doesn't change but indexing slows down, you've probably tightened the screws too much.

Cross-reference with your analytics tools: if you publish regularly and the delay between publication and appearance in the index increases significantly, that's a warning signal. Then adjust the limit upward.

  • Analyze server logs to identify crawl spikes
  • Cross-reference crawl spikes with actual user traffic spikes
  • Enable QPS limitation only if server overload is confirmed
  • Set a cautious limit and monitor impact on indexing
  • Compare average download time before/after in Search Console
  • Never limit QPS without first optimizing site architecture
  • Track indexing curve for new pages after each adjustment
  • Review the setting regularly as the site evolves
Limiting Googlebot's QPS is a defensive tool, not an SEO strategy. It serves to protect your server, not improve your visibility. Before any limitation, make sure you've first fixed your site's structural flaws — otherwise you're just slowing down a bot that's already crawling poorly built content. These diagnostics and technical trade-offs can be complex to manage alone, especially on high-volume infrastructure: in such cases, support from an SEO-specialized agency allows you to manage these settings methodically and avoid costly indexing mistakes.

❓ Frequently Asked Questions

Limiter le QPS ralentit-il forcément l'indexation de mon site ?
Pas forcément. Si votre site publie peu de nouvelles pages par jour et que Googlebot crawle déjà largement, l'impact sera négligeable. En revanche, sur un site à fort volume de publication quotidienne, brider le QPS peut retarder l'indexation des nouveautés.
Peut-on cibler quelles sections du site Googlebot doit crawler en priorité ?
Non, pas via ce réglage. Limiter le QPS agit sur le débit global, pas sur la stratégie de crawl. Pour prioriser certaines sections, il faut agir sur le maillage interne, le sitemap XML, et l'architecture du site.
Quel est le QPS "idéal" pour éviter de surcharger mon serveur ?
Il n'existe pas de valeur universelle. Cela dépend de la capacité de votre infrastructure, du nombre d'URLs à crawler, et de vos pics de trafic. Analysez vos logs serveur pour identifier le seuil où Googlebot commence à peser sur les performances.
Faut-il limiter le QPS si mon site est hébergé sur une infrastructure cloud scalable ?
Probablement pas. Si votre infrastructure s'adapte automatiquement à la charge, Googlebot ne posera pas de problème. En revanche, surveiller le coût d'infrastructure peut être un motif pour lisser le crawl — mais c'est alors un arbitrage économique, pas technique.
Cette limitation s'applique-t-elle aussi à Googlebot pour images, vidéos, ou news ?
Google ne précise pas si la limitation QPS s'applique uniquement au bot principal ou à l'ensemble des user-agents Googlebot. Par défaut, on suppose que le réglage concerne le crawl global, mais sans confirmation officielle.
🏷 Related Topics
Crawl & Indexing AI & SEO Search Console

🎥 From the same video 12

Other SEO insights extracted from this same Google Search Central video · published on 25/08/2022

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