Enable HTTP/3 (QUIC) Support in FlyWP

HTTP/3 (QUIC) support can be enabled directly from your FlyWP server dashboard. Once enabled, all websites hosted on that server will automatically use HTTP/3 support.

Caution

HTTP/3 support is currently enabled on a per-server basis only. It is not possible to enable or disable HTTP/3 for individual sites.

How to Enable HTTP/3 (QUIC)

1. Log in to your FlyWP dashboard.
2. Open the desired server.
3. Navigate to Manage from the left sidebar.
4. Under the Manage Services section, locate Enable HTTP/3 (QUIC) Support.
5. Click the Enable HTTP/3 button.

Once enabled, FlyWP will configure the main Nginx proxy to serve HTTP/3 traffic for all sites hosted on that server.

Warning: Temporary Downtime During Activation

Caution

Enabling HTTP/3 requires restarting the main Nginx proxy service.

During this restart process:

• All websites on the server may become temporarily unavailable.
• Downtime typically lasts between 10–30 seconds.
• Actual downtime duration depends on the server load and configuration.

We recommend enabling HTTP/3 during low-traffic periods to minimise user impact.

Notes

• HTTP/3 uses the QUIC protocol over UDP for faster and more efficient connections.
• After enabling HTTP/3, supported browsers will automatically start using it.
• Existing websites on the server do not require additional configuration.
• Any new sites added to the same server will also have HTTP/3 support automatically enabled.