Is there a need for me to edit my NGINX setting to
listen 443 ssl http2;
the default is
listen 443 ssl;
I understand that Cloudflare has setting to push for http2 , but not sure if there’s a need to set http2 on my nginx configuration.
In fact i’ve already enabled HTTP/3 on Cloudflare, not sure if i should be configuring my nginx to HTTP/3 , would it improve the performance.
Historically Cloudflare has only supported HTTP/1.1 to your origin, but recently there has been some movement in Cloudflare supporting HTTP/2 to origin.
Enabling HTTP/2 on your origin may result in faster responses (especially with multiple requests) when handling any uncached assets, and it’s basically a one-line change for any modern nginx version.
For more information: https://support.cloudflare.com/hc/en-us/articles/200168076-Understanding-Cloudflare-HTTP-2-and-HTTP-3-Support
Won’t hurt to enable http2 listen directive on Nginx origin as Cloudflare will use whichever protocol is supported on Nginx origin - right now that is HTTP/1.1 but if HTTP/2 connection to origin evolves, then you’d be ready.
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