| Metric | Example Value | Cumulative Time | Delta Time | What It Measures | RTT Component |
|---|---|---|---|---|---|
| time_namelookup | 0.028s | 0.028s | 0.028s | DNS resolution - converting hostname to IP address | ~1 RTT to DNS server |
| time_connect | 0.044s | 0.044s | 0.016s | TCP 3-way handshake completion (SYN, SYN-ACK, ACK) | ~1 RTT to target server |
| time_appconnect | 0.066s | 0.066s | 0.022s | SSL/TLS handshake completion (encrypted connection ready) | ~1-2 RTTs (TLS 1.3 = 1 RTT, TLS 1.2 = 2 RTTs) |
| time_pretransfer | 0.066s | 0.066s | 0.000s | All pre-transfer setup complete, ready to send HTTP request | Local preparation, no network |
| time_redirect | 0.000s | N/A | 0.000s | Time spent on HTTP redirects (3xx responses) | Varies, 0 = no redirects |
| time_starttransfer | 5.591s | 5.591s | 5.525s | Time to First Byte (TTFB) - includes sending request + server processing + first byte back | ~1 RTT + server processing |
| time_total | 5.638s | 5.638s | 0.047s | Complete request duration including receiving full response body | Data transfer time |
Created
October 16, 2025 12:17
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curl_time_drilldown.md
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