Very quick one here – a lot of speed testing websites such as Pingdom and Google PageSpeed require you to enable “Vary: Accept-Encoding”.
And because it’s sooo simple to turn on in NGINX here’s how you do it:
Modify the file /etc/nginx/nginx.conf
and add gzip_vary on;
to the file (preferably under the gzip compression section).
# Compression gzip on; gzip_comp_level 5; gzip_min_length 512; gzip_buffers 8 64k; gzip_types text/plain text/css text/javascript application/x-javascript application/javascript; gzip_proxied any; gzip_vary on;
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