HTTP/3 QUIC Online Test

What are QUIC and HTTP/3

First, QUIC is a name, not an acronym. QUIC is pronounced exactly like the English word [quick].

QUIC is a new reliable and secure transport protocol for protocols such as HTTP that addresses some of the known shortcomings of HTTP/2 over TCP and TLS.

HTTP/3 is the third major version of HTTP and is based on QUIC. Unlike HTTP/1.1 and HTTP/2, which rely on TCP, HTTP/3 is based on QUIC's multiplexed UDP protocol. HTTP/3 and TLS 1.3 can greatly improve performance and latency. HTTP/3 changes the transport layer semantics (from TCP to UDP), and the semantics of HTTP request headers, request methods, responses, and status codes have changed.

Almost all major browsers now support HTTP/3, with some HTTP clients (such as Curl) and web servers (such as Nginx) offering experimental support. Caddy Server even has HTTP/3 support enabled by default.

What can the HTTP/3 QUIC Online Test tool do?

HTTP/3 QUIC Online Test Tool is a free online tool for testing whether the website server supports the QUIC transport protocol and HTTP/3 protocol.

After entering the URL, domain name or IP to be detected, the detection tool makes a request, obtains the Response response from the server, and analyzes it.

The tool's HTTP request User-agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; WCodeNet/2.0; +https://http3.wcode.net/) Chrome/116.0.1938.76 Safari/537.36