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⚡ Free Performance Tool

Speed & Latency Test

Test your website server response time, Time to First Byte (TTFB), DNS resolution latency, and HTTP status codes worldwide.

Response Time
- ms
Lightning Fast
HTTP Status
200
OK / Healthy
Target Host
-
Direct Probe

Detect latency spikes and 5xx outages the moment they occur.

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Why Latency & Speed Matter for SEO

What is Time to First Byte (TTFB)?

TTFB measures the duration from the user's browser sending an HTTP request until receiving the first byte of data from the web server. Google considers TTFB under 200ms ideal.

How does page response speed affect conversions?

Studies show that each additional 100ms of latency drops conversion rates by up to 7%. Fast servers keep bounce rates low and engagement high.