Page Size Checker
Reports HTML size, resource totals by type, and the largest files for one page without running JavaScript.
Analyze one page load path on our server to inspect response timings, resource requests, caching, and compression. Nothing is stored.
This check runs on our server. The address you enter is used only for this check and is not stored.
Mode: Load view
Tick the box to show you are not a robot, then press Check.
This check runs on our server. The page address is used only for this check and is not stored.
The analyzer fetches one page, records DNS lookup time, TCP connect time, TLS time, time to first byte, and download time, then collects up to 50 linked resources from the HTML. It checks response headers on those resources to see whether compression and caching are in place.
Scripts and stylesheets found in the head are highlighted because they can block early rendering in the browser, even though this tool itself does not render the page.
No. Core Web Vitals are browser-side user experience metrics. This tool measures the server-side response path and the initial HTML resource setup.
The request comes from our server location, and the tool does not execute JavaScript or use your local browser cache.
Start with large delays in DNS, TLS, or TTFB, then look at uncompressed assets, missing cache headers, and render-blocking files near the top of the page.
Often used together with the Page Load Analyzer.
Reports HTML size, resource totals by type, and the largest files for one page without running JavaScript.
Checks one page for SEO basics, response details, tags, headings, links, and structured data without running JavaScript.
Previews how a title and meta description may appear in Google results.