category 04 / 10

Networking

Ports, DNS, HTTP requests, and waiting for services.

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entries

4 min

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all 002 debugging 002 curl 001 http 001 latency 001 dig 001 dns 001

017Find out which part of an HTTP request is actually slowcurl -sS -o /dev/null -w "dns %{time_namelookup}\ntcp %{time_connect}\ntls %{time_appconnect}\nttfb %{time_starttransfer}\ntotal %{time_total}\n" https://www.debian.org2026-09-074 min 008Check where a domain name actually pointsdig +short example.com2026-08-253 min

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