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    Website Latency Tester

    Measure your website's response time with a detailed timing breakdown. See DNS, TCP, TLS, TTFB, and download times with a performance grade.

    What is Website Latency Testing?

    Website latency testing measures how quickly your server responds to requests. Key metrics include Time to First Byte (TTFB), DNS resolution time, TLS handshake duration, and total page load time. These directly impact user experience and SEO rankings.

    Why Does TTFB Matter?

    Google uses TTFB as a Core Web Vitals metric. A TTFB under 200ms is considered excellent, while anything over 600ms can negatively impact your search rankings and user engagement.