#ttfb

3 one-liners with this tag.

Compare the response time of a PHP page with a static file

$for u in https://example.com/ https://example.com/wp-includes/css/dist/block-library/style.min.css; do curl -o /dev/null -s -w "%{time_starttransfer}s TTFB $u\n" "$u"; done

harmlessImages and performance

Measure HTTP load times and TTFB with curl

$curl -o /dev/null -sS -w 'DNS: %{time_namelookup}s Connect: %{time_connect}s TLS: %{time_appconnect}s TTFB: %{time_starttransfer}s Gesamt: %{time_total}s\n' https://example.com/

harmlessNetwork

Measure TTFB repeatedly with minimum, median and maximum

$for i in $(seq 10); do curl -o /dev/null -s -w '%{time_starttransfer}\n' https://example.com/; done | LC_ALL=C sort -n | awk '{a[NR]=$1; s+=$1} END {printf "Min: %.3fs Median: %.3fs Max: %.3fs Schnitt: %.3fs\n", a[1], a[int((NR+1)/2)], a[NR], s/NR}'

harmlessSEO checks