Website Speed Test

Measure load time, page weight and request count for any URL.

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Files and text are processed locally in your browser. Tools that must reach the network say so explicitly.

About the Website Speed Test

Check how fast a page responds and how heavy it is. The Toolcenter Website Speed Test fetches a URL once from this app’s server and reports time-to-first-byte, total load time, page weight, script and stylesheet counts, DOM size, compression and caching headers, each graded good/ok/poor.

How to use it

1Enter the URL you want to test.
2Run the test.
3Read the TTFB, load time and page-weight grades.
4Review the page analysis for scripts, DOM size and compression.

Key features

TTFB and total load time
Page weight and status code
Script, stylesheet, image and DOM-element counts
Compression and Cache-Control inspection
Server-side fetch (bypasses browser CORS)

Frequently asked questions

Is this the same as Lighthouse or PageSpeed Insights?+

No. It measures server response and page weight, not full browser rendering or Core Web Vitals. Use it for a fast first look.

Why is my TTFB different from other tools?+

The request comes from this app’s server, not your location, and runs once. Numbers vary with network conditions and server load.

Can it test a page behind a login?+

No. It fetches the URL anonymously, so it only sees what a logged-out visitor or crawler would.

Is the URL stored?+

No. It is fetched once and the result is returned to your browser.

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