Latency Tester
Measure TCP connect time and Time to First Byte (TTFB) from the network edge to any origin server
Target
About Latency Tester
Measure real-world latency to any server from the network edge. This tool reports TCP connect time and Time to First Byte (TTFB) so you can benchmark origins, compare hosts, and diagnose slow responses. A quick pulse-check on your infrastructure speed.
- TCP connect and TTFB timing
- Measured from the network edge
- Benchmark and compare origins
Frequently asked questions
What is TTFB?
Time to First Byte measures how long the server takes to start responding after a request — a key indicator of backend speed.
What counts as good latency?
Lower is better; sub-100ms feels instant, while consistently high times point to server or routing bottlenecks.