Measures time-to-first-byte in seconds, for single or multiple URLs. Can calculate fastest, slowest & median TTFB values, and optionally log all response headers. Uses curl and the calculation `%{time_starttransfer} - %{time_appconnect}` which doesn't include any connection overhead, to better approximate devtool’s TTFB figure.
For some requests, ttfb seems to be producing negative numbers. Possibly this is for failed requests? I'm attaching a screenshot from one such case when running verbosely:
Amazing tool, thanks for creating!
For some requests, ttfb seems to be producing negative numbers. Possibly this is for failed requests? I'm attaching a screenshot from one such case when running verbosely: