Optimizing NGINX TLS Time To First Byte (TTTFB)

Adam Zell zellster at gmail.com
Tue Dec 17 05:05:18 UTC 2013


We started with a ~1800ms overhead for our TLS connection (nearly 5 extra
RTTs); eliminated the extra certificate roundtrip after a nginx upgrade;
cut another RTT by forcing a smaller record size; dropped an extra RTT from
the TLS handshake thanks to TLS False Start. With all said and done, *our
TTTFB is down to ~1560ms, which is exactly one roundtrip higher than a
regular HTTP connection.* Now we're talking!

zellster at gmail.com
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