Based on Googlebot’s 2 MB fetch limit
Free Web Page Size Checker
Check whether Googlebot can fetch your complete HTML response—and whether important SEO or AEO signals could fall past the cutoff.
SEO & AEO context
Why page size matters
What the result means, what it measures, and how to create more headroom.
What is Google’s 2 MB page limit?
Google says Googlebot fetches up to 2 MB for an individual non-PDF URL, including the HTTP header. The downloaded portion is passed to indexing and rendering as though it were the complete file. PDFs have a separate 64 MB limit.
Why does HTML size matter for SEO and AEO?
If important copy, internal links, canonical tags, or structured data appear after the cutoff, Google cannot fetch or process those bytes. Other search and AI crawlers use their own limits, so this result is a Googlebot-specific diagnostic rather than a universal bot limit.
Does this include images, CSS, and JavaScript files?
The checker measures the initial HTML response as transferred, plus its response headers. External scripts and stylesheets have separate per-URL budgets. Inline CSS, inline JavaScript, and base64-encoded images count because they are part of the HTML response.
How can I reduce a large HTML response?
Move large inline CSS and JavaScript into external files, replace base64 images with normal image URLs, remove duplicate markup, simplify oversized navigation, and minify the final HTML. Keep critical metadata and structured data near the start of the document.