Network & TTFB Latency Profiler
Free Website Performance & TTFB Tester
Measure real server response latency across all network stages: DNS resolution, TCP handshake, TLS negotiation, Time to First Byte (TTFB), payload compression, and Cache-Control headers.
Frequently Asked Questions
What is Time to First Byte (TTFB)?
TTFB is the duration from when a browser sends an HTTP request to when it receives the first byte of response data from your web server.
What is considered a good TTFB score?
Google's Web Vitals guidance treats 800ms or lower as good. TestHive's check is more lenient: it flags TTFB above 1800ms as a Medium finding and above 3500ms as High.
How does TestHive differ from Google Lighthouse?
TestHive Performance provides native network socket timing, server response latency, payload compression, and header checks, distinct from browser-rendered Lighthouse lab scores.