HTTP/2 checker
HTTP/2 checker reports whether the target appears to speak HTTP/2. Modern CDNs and web servers usually enable it; missing HTTP/2 can hint at outdated stacks or odd TLS termination setups.
Protocol support alone does not equal a fast site — still measure TTFB and page weight. Use this tool during infrastructure reviews alongside SSL and headers lookups.
Keep customer-facing URLs on UpFo monitors so protocol upgrades never coincide with unnoticed downtime.
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