HTTP Timing Waterfall

Visualize where your HTTP request spends its time. Paste values from Chrome DevTools Network panel, curl's -w output, or enter them manually.

⏱ Phase Durations (ms)

DNS lookup

TCP connect

TLS handshake

Send request

Waiting (TTFB)

Content download

📊 Waterfall

DNS TCP TLS Send Wait (TTFB) Download

🔍 Analysis

📋 Paste from curl

Run curl -w "@curl-format.txt" -o /dev/null -s URL with a format file, or paste any key: value pairs (seconds). Recognized keys: namelookup, connect, appconnect, pretransfer, starttransfer, total.

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