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HTTP/2 & Protocol Checker
Check which HTTP protocol version a site serves — HTTP/1.1 or HTTP/2 — and its response status.
We open the URL and read the negotiated protocol.
Next step: SSL Certificate Checker →
About the HTTP/2 Checker
Checks whether a site is served over HTTP/2 — the modern protocol that loads pages faster by multiplexing many requests over one connection. Most fast sites should be on HTTP/2 (or HTTP/3).
What this tool checks
- Detects the negotiated HTTP protocol version
- Confirms HTTP/2 support
- Shows status and response time
Frequently asked questions
Does HTTP/2 help SEO?
Indirectly — it improves load speed, and speed is a ranking and UX factor.
How do I enable HTTP/2?
It's a server/CDN setting; most modern hosts and Cloudflare enable it automatically over HTTPS.
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