What does Google say about SEO? /
Quick SEO Quiz

Test your SEO knowledge in 5 questions

Less than a minute. Find out how much you really know about Google search.

🕒 ~1 min 🎯 5 questions

Official statement

The number of requests needed to load a page can affect the crawl budget. Minimizing requests through server or hybrid rendering can improve crawl efficiency.
12:59
🎥 Source video

Extracted from a Google Search Central video

⏱ 14:02 💬 EN 📅 27/06/2019 ✂ 5 statements
Watch on YouTube (12:59) →
Other statements from this video 4
  1. 2:37 Googlebot exécute-t-il vraiment JavaScript aussi bien qu'un navigateur moderne ?
  2. 4:28 Comment la Search Console aide-t-elle vraiment à déboguer les erreurs d'affichage mobile ?
  3. 5:53 Pourquoi Google refuse-t-il d'indexer les URLs avec hash ?
  4. 8:16 Pourquoi chaque modal doit-il avoir sa propre URL pour être indexable ?
📅
Official statement from (6 years ago)
TL;DR

Martin Splitt confirms that the number of HTTP requests needed to load a page directly impacts the crawl budget allocated by Google. The more resources your page requires to load, the fewer pages Googlebot can crawl within its allotted time. The solution? Favor server-side rendering (SSR) or hybrid rendering to reduce request load and optimize crawl efficiency.

What you need to understand

Why does the number of requests affect the crawl budget?

Googlebot has a limited time to explore your site. Every page that requires 50, 80, or 150 HTTP requests to completely load proportionally consumes more of this precious time.

Specifically: if your average page demands 120 requests compared to 30 for a competitor, Googlebot will crawl 4 times fewer of your pages in the same amount of time. Splitt’s statement confirms what many suspected — the volume of requests is a direct limiting factor.

What do we mean by 'server-side or hybrid rendering'?

Server-side rendering (SSR) generates the complete HTML before sending it to the browser. The result: the content is immediately available without requiring dozens of additional JavaScript requests to display.

Hybrid rendering combines SSR for critical content and client-side rendering (CSR) for secondary elements. This approach offers a compromise between initial performance and interactivity while drastically reducing the request load needed for the first display.

Is this optimization only relevant for large sites?

No. Even a site with 500 pages can suffer from a poorly optimized crawl budget if each URL excessively consumes Googlebot. E-commerce sites with heavy product listings, media sites filled with ad widgets, or poorly configured SPAs are particularly exposed.

The issue is not just the total volume of pages — it's the efficiency/time ratio of the crawl. A small, inefficient site may see its new pages discovered several days late, while a large optimized site remains responsive.

  • Number of HTTP requests: a direct factor in crawl budget consumption
  • SSR/hybrid rendering: preferred solutions to minimize this load
  • Universal impact: concerns all sites, not just the giants
  • Discovery delay: an inefficient crawl slows down the indexing of new content
  • Priority optimization: monitor the number of requests per page in your technical audits

SEO Expert opinion

Does this statement align with field observations?

Absolutely. Log analyses consistently show that Googlebot spends less time on resource-heavy pages. Sites that have migrated to SSR generally see a 30 to 60% increase in the number of pages crawled daily.

However — and Splitt remains vague on this — the critical threshold is never specified. At what point do requests become significant? 50? 80? 150? [To be verified] Google does not provide any actionable numerical data to calibrate your optimizations. You're navigating in the dark.

What nuances should be added to this recommendation?

SSR is not a one-size-fits-all solution. Some modern JavaScript frameworks (Next.js, Nuxt) facilitate its implementation, but migrating a complex application can take weeks of development. The ROI is not guaranteed for all sites.

Another rarely mentioned point: poorly implemented SSR can lead to catastrophic server response times, which also degrades the crawl budget. I've seen SSR migrations where TTFB went from 200ms to 1.2s — a net negative result. Optimizing requests does not compensate for a sluggish server.

Note: do not sacrifice server speed at the altar of request reduction. A balance between the two metrics is essential.

In what cases does this rule not strictly apply?

If your site generates little new content and Google is already crawling it exhaustively every week, optimizing the number of requests will bring only marginal gains. Your efforts will be better invested elsewhere (content, links, UX).

Similarly, some sites benefit from an almost unlimited crawl budget — think of giants like Amazon or Wikipedia. For them, a few dozen additional requests per page are anecdotal. But let’s be honest: if you’re reading this, you’re probably not in that category.

Practical impact and recommendations

What should you do concretely to reduce requests?

Start with a technical audit of HTTP requests: use Chrome DevTools or WebPageTest to identify how many requests each type of page generates. Target your strategic pages (product sheets, blog posts, category pages) as a priority.

Then, consolidate: group your CSS and JS files, use CSS sprites for icons, enable HTTP/2 multiplexing if not already done. These quick wins can reduce the number of requests by 20 to 40% without major redesign.

When should you consider an SSR or hybrid migration?

If your site is a SPA (Single Page Application) with a client rendering time exceeding 2 seconds, that’s a strong signal. The same goes if your logs show that Googlebot is only crawling a fraction of your new pages each week while you are actively publishing.

Hybrid rendering is often the best compromise: you retain JavaScript interactivity for UX while delivering critical content immediately. Frameworks like Next.js or Astro facilitate this approach without rewriting your entire codebase.

How can you check the actual impact of these optimizations?

Analyze your server logs before/after optimization: number of pages crawled per day, average crawl depth, time spent by Googlebot. Google Search Console also provides indicators (Exploration Statistics tab).

Also measure the indexing delay of new content: publish a test article, submit it via the URL Inspection Tool, and note how long it takes to appear in the index. Repeat the process post-optimization to compare.

  • Audit the number of HTTP requests by page type (DevTools, WebPageTest)
  • Consolidate CSS/JS, enable HTTP/2, optimize images
  • Evaluate the relevance of an SSR/hybrid migration based on your tech stack
  • Monitor server logs and Search Console to measure crawl impact
  • Test the indexing delay before/after optimization on test content
  • Ensure that TTFB remains acceptable after SSR implementation
Reducing the number of HTTP requests significantly improves crawl budget efficiency, especially for high-volume or frequently publishing sites. SSR/hybrid offers the most significant gains, but requires sharp technical expertise. These optimizations can prove complex to orchestrate alone, especially in a demanding production environment. Engaging a specialized SEO agency in technical performance can help avoid costly mistakes and accelerate the implementation of an optimal rendering architecture for your specific context.

❓ Frequently Asked Questions

Combien de requêtes HTTP maximum pour ne pas pénaliser mon crawl budget ?
Google ne fournit aucun seuil officiel. Les observations terrain suggèrent qu'au-delà de 80-100 requêtes par page, l'impact devient significatif, mais cela varie selon la popularité de votre site et sa vitesse serveur.
Le passage en HTTP/2 suffit-il à résoudre le problème des requêtes multiples ?
HTTP/2 améliore le multiplexing et réduit la latence, mais ne supprime pas le coût en temps de traitement côté Googlebot. Réduire le nombre absolu de requêtes reste plus efficace que de simplement les paralléliser.
Un site statique (HTML pur) a-t-il un avantage crawl budget sur un site SSR ?
Oui, toutes choses égales par ailleurs. Un site statique nécessite généralement moins de requêtes et offre un TTFB minimal, ce qui maximise l'efficacité du crawl. C'est l'une des raisons du regain d'intérêt pour les générateurs de sites statiques (Jamstack).
Les lazy loading d'images comptent-ils dans le nombre de requêtes impactant le crawl ?
Si Googlebot doit attendre le chargement pour accéder au contenu textuel, oui. En revanche, des images lazy-loadées hors viewport initial pèsent moins car Googlebot peut analyser le contenu principal sans attendre leur chargement complet.
Faut-il privilégier SSR ou prerendering pour optimiser le crawl budget ?
Le SSR dynamique offre plus de flexibilité pour du contenu personnalisé ou fréquemment mis à jour. Le prerendering (génération statique à la demande) est plus performant pour du contenu stable. Le choix dépend de votre modèle de publication et de votre infrastructure.
🏷 Related Topics
Domain Age & History Crawl & Indexing AI & SEO

🎥 From the same video 4

Other SEO insights extracted from this same Google Search Central video · duration 14 min · published on 27/06/2019

🎥 Watch the full video on YouTube →

Related statements

💬 Comments (0)

Be the first to comment.

2000 characters remaining
🔔

Get real-time analysis of the latest Google SEO declarations

Be the first to know every time a new official Google statement drops — with full expert analysis.

No spam. Unsubscribe in one click.