← Back to Home

HTTP Version Detector

/http-version/:url
Detect HTTP/2 and HTTP/3 support by checking Alt-Svc headers.
Try it now

Parameters

url path
URL to check

Examples

curl
# Check Cloudflare
curl https://tcpdata.com/http-version/https://cloudflare.com

# Check Google
curl https://tcpdata.com/http-version/https://google.com