Protocol audit
SEO page with a cached HTTP/2, ALPN and TLS negotiation check.
Negotiation result
This endpoint negotiated h2 via ALPN, so modern browsers and clients can use HTTP/2 here.
HTTP/2 support
Supported
Negotiated protocol
h2
TLS version
TLS 1.3
Cipher
TLS_AES_128_GCM_SHA256
Remote IP
104.20.23.154
Checked host
example.com
Port
443
Tool switcher
Same target (example.com) — open the next tool without retyping.
Practical guides for common HTTP/2 Tester tasks — DNS records, troubleshooting steps, and links to our free tools.
http2 detection, check http/2 support, http2 tester
How to confirm HTTP/2 support, read protocol results, and avoid false positives from cached or proxied checks.
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