Glossary
Time to first byte
The time from sending a request to receiving the first byte of the response.
Report it as a median and a high percentile, not a mean. The tail is what stalls a pipeline, and the mean hides it.
Further reading: Timing with curl.
Related terms
- Success rate
The share of requests that returned a page passing a stated content check.
Test it on your own targets.
Create an account, run the measurement harness against your real workload, and read the numbers before you commit to anything.