HTTP/3 Test
Check if H3/QUIC is enabled on your website
Fast
Accurate
Reliable
What is HTTP/3?
HTTP/3 is the latest version of the HTTP protocol, using QUIC transport protocol over UDP. It provides faster connection establishment, improved performance on unreliable networks, and better security.
Test HTTP/3 Support
Enter a domain name to check if HTTP/3 (QUIC) is enabled
HTTP/3 Test Features
Comprehensive HTTP/3 and QUIC protocol detection
HTTP/3 Detection
Check if your website supports HTTP/3 (QUIC) protocol
Performance Benefits
HTTP/3 provides faster connection establishment and improved performance
Modern Protocol
Verify support for the latest HTTP protocol standard
Alt-Svc Analysis
Analyze Alt-Svc headers to detect HTTP/3 availability