The LEAD search engineer at Google just dropped a brand new blog post that confirms something most SEOs have never even heard of...
Googlebot only fetches the first 2MB of your pages HTML = Everything after that cutoff doesn't exist to Google!!!
Not fetched, not rendered, not indexed.
And the Web Rendering Service is completely STATELESS - Meaning it clears local storage and session data between every request, so if your content depends on cookies or session state to render, Google can't see it.
External CSS and JS files are fetched SEPARATELY with their own 2MB limit per file, and PDFs get a 64mb limit.
So the structure and order of your code literally matters! And is why some CMSs are so much better out the box than others... Make sure you put your meta tags, title, canonicals, and structured data as HIGH as possible in the document. If they're below the 2MB cutoff, Google doesn't know they exist.
Most OnPage SEO guides never take any of this into account, but most OnPage is surface-level.
The real edge is understanding the infrastructure your content passes through before Google even evaluates it.
Googlebot only fetches the first 2MB of your pages HTML = Everything after that cutoff doesn't exist to Google!!!
Not fetched, not rendered, not indexed.
And the Web Rendering Service is completely STATELESS - Meaning it clears local storage and session data between every request, so if your content depends on cookies or session state to render, Google can't see it.
External CSS and JS files are fetched SEPARATELY with their own 2MB limit per file, and PDFs get a 64mb limit.
So the structure and order of your code literally matters! And is why some CMSs are so much better out the box than others... Make sure you put your meta tags, title, canonicals, and structured data as HIGH as possible in the document. If they're below the 2MB cutoff, Google doesn't know they exist.
Most OnPage SEO guides never take any of this into account, but most OnPage is surface-level.
The real edge is understanding the infrastructure your content passes through before Google even evaluates it.