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Official statement

The 15 MB limit for Googlebot applies to the uncompressed file (after extraction), not the compressed one. If an uncompressed HTML file exceeds 15 MB, it is highly recommended to reduce it (externalize inline CSS, optimize the code).
19:49
🎥 Source video

Extracted from a Google Search Central video

⏱ 27:45 💬 EN 📅 28/07/2022 ✂ 18 statements
Watch on YouTube (19:49) →
Other statements from this video 17
  1. 1:35 How does Googlebot's 15 MB limit influence your SEO strategy?
  2. 2:01 Is it true that Googlebot only crawls the first 15 MB of HTML files?
  3. 3:03 How is the new video indexing report transforming your SEO strategy?
  4. 3:03 How can you leverage the new Video Indexing Report in Search Console?
  5. 5:47 Is it true that a noindex on an error page can lead to your URL being deindexed?
  6. 6:32 How does support for the M3U8/HLS format influence your video SEO?
  7. 6:52 Is it true that Google supports the M3U8/HLS format for videos?
  8. 8:55 Should you continue publishing even when facing canonicalization issues?
  9. 13:23 Why is a hierarchical URL structure a game-changer for SEO?
  10. 14:06 Why should you favor logical directories for your SEO URLs?
  11. 17:24 How can you ensure your site stays visible and doesn’t get excluded due to similarity?
  12. 17:44 How can you make your pages stand out to prevent Google from omitting them?
  13. 19:49 Why is the 15 MB limit on uncompressed files crucial for SEO?
  14. 21:23 How does the 15 MB limit impact your JavaScript management for SEO?
  15. 21:23 Why is the 15 MB limit before JavaScript execution crucial for your SEO?
  16. 22:57 Why are Google search referrers still undifferentiated?
  17. 22:57 How do Google referrers really impact your SEO analysis?
📅
Official statement from (4 years ago)
TL;DR

Googlebot limits uncompressed HTML files to 15 MB. If your file exceeds this, optimize immediately (externalize CSS, optimize the code). Make sure to stay under this limit to ensure full indexing.

❓ Frequently Asked Questions

Comment savoir si mon fichier HTML est trop grand pour Googlebot ?
Vérifiez la taille de votre fichier HTML décompressé via vos outils de développement pour s'assurer qu'il est bien inférieur à 15 MB.
Quels éléments sont tronqués si le fichier dépasse 15 MB ?
Tout contenu situé au-delà de la limite de 15 MB risque de ne pas être indexé par Google, ce qui inclut texte, liens, images, scripts.
Les fichiers compressés sont-ils concernés par cette limite ?
Non, cette limite s'applique uniquement aux fichiers décompressés. Un fichier compressé peut être plus volumineux tant qu'il reste en deçà des 15 MB une fois décompressé.
🏷 Related Topics
Crawl & Indexing PDF & Files

🎥 From the same video 17

Other SEO insights extracted from this same Google Search Central video · duration 27 min · published on 28/07/2022

🎥 Watch the full video on YouTube →

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