⚡ HTTP/2 & HTTP/3 Check

Modern HTTP protocol support checker

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Why does HTTP/2 matter? ▾
HTTP/2 loads resources in parallel instead of sequential HTTP/1.1, speeding up sites by 30-50%. HTTP/3 based on QUIC is even faster — especially on unstable connections (mobile networks).
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🔒 SSL Check 📄 HTTP Headers 🔀 Redirects 🛡️ CSP Check