Website Speed Test
A lightweight server-side diagnostic: where does the time go between request and response?
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Terms explained
Frequently asked questions
What is a good TTFB?
Under 200 ms is excellent, under 500 ms is good. Above 800 ms usually means slow hosting or uncached pages.
Is this the same as Core Web Vitals?
No. This measures server-side timing. For browser rendering metrics use our Core Web Vitals test.