🚀 Core Web Vitals & Performance

Free Website Speed & TTFB Performance Tester

Benchmark server Time to First Byte (TTFB), DNS resolve speed, SSL handshake latency, and total page download throughput in milliseconds.

âš¡

Why Time to First Byte (TTFB) is Critical for SEO & LiteSpeed

TTFB measures the duration between the browser requesting a URL and receiving the very first byte of response data from the server. According to Google Core Web Vitals guidelines:

  • Good TTFB: Under 200 milliseconds (0.2 seconds).
  • Needs Improvement: Between 200 ms and 600 ms.
  • Poor TTFB: Over 600 ms — significantly harms user bounce rates and crawling frequency by Googlebot.