← Blog · 21 Sep 2026

HTTP/3 and QUIC: Why Your Website Can Load Faster

HTTP/3 runs on QUIC over UDP. Compared with older HTTP it connects faster and handles lost packets better, so pages feel quicker on mobile and weak Wi-Fi.

How to use it

• Use a server or CDN that supports it (Nginx builds with QUIC, LiteSpeed, Cloudflare).
• Open UDP port 443 in your firewall.
• Keep HTTP/2 as fallback.

Test

Open your site, press F12, Network tab, add the Protocol column, and look for h3.

Ask support if you want HTTP/3 enabled on your plan.