Free tool

Page weight check

Measure what a page sends before anything else loads: the HTML's size and compression, redirects, response time, and what it pulls in.

Run the check

For example https://example.com

What this checks

  • What we measure

    We fetch the page once from Cloudflare's network, follow any redirects, and read the HTML. We report its size, whether it was compressed, how long the server took to answer, and what the HTML asks the browser to load.

  • What we don't measure

    Images, scripts and styles aren't downloaded, and times are from Cloudflare's network, not a visitor's phone. For a full picture, test in a browser's developer tools or with Lighthouse.

  • Other sites

    We list every other domain the HTML loads from. Each one is another connection to set up, and another company that sees your visitors' requests.

Nothing you enter is stored. Results come from public DNS and one request to the address you give.

Tell us what you're building.

Email us about your project: what it needs to do, who it's for and when you'd like it live.