Googlebot typically crawls only the first 2 MB of uncompressed HTML. Content beyond this limit may not be crawled or indexed.
Where to find: Check the pages listed in the audit report. These are the pages whose HTML size exceeds Google's recommended limit.
What to do: Make the page smaller by reducing the amount of code and content loaded on it.
How to fix: Remove unnecessary content, sections, apps, scripts, or code that add extra HTML to the page. In simple terms, the page contains so much content that Google may stop reading it, which can prevent some content from being crawled or indexed.