Web
TTFB Checker
Measure time to first byte for any URL.
Checked from our server so browser rules do not get in the way. Free and rate-limited.
About this tool
Free ttfb checker tool. Measure time to first byte for any URL. No signup, nothing uploaded.
Frequently asked questions
What do you fetch?
Only the public URL you enter; no credentials are sent.
Do you log my checks?
We do not store your queries beyond rate limiting.
Can I check any site?
Yes, any publicly reachable URL.
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