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Website Speed Test
Measure how fast a URL responds and downloads
Free
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Medium
About this tool
Check how long a URL takes to respond — time to first byte, total download time, and download size.
Frequently asked questions
What is "time to first byte" (TTFB)?
The time between the request being sent and the first byte of the response arriving — a good proxy for backend/server processing speed, separate from how long the full page takes to download.
Does this measure the same thing as a browser page load?
No — this measures a single request's response time, not a full page load with all its images, scripts, and stylesheets. It's a focused server-response benchmark, not a complete page-speed audit.