See how this browser connects: TLS version, cipher, HTTP version and round trip.
Example
From this device to our server
Each layer
Findings
Capabilities and processing
The page reads the connection your browser opened to our server: the TLS version and cipher suite it negotiated, the HTTP version (HTTP/1.1, HTTP/2 or HTTP/3), the TCP or QUIC round-trip time measured at our edge, the edge location that answered (as an airport code), and your address and network.
Each layer is graded for what it means: TLS 1.3 is current and TLS 1.2 still secure, while TLS 1.0 and 1.1 are deprecated. Authenticated (AEAD) ciphers are modern; CBC-mode ciphers are older. HTTP/3 runs over QUIC, and a round trip above 150 ms is flagged.
Example workflow
A browser on a home connection shows TLS 1.3 over HTTP/2 with a 23 ms TCP round trip to a nearby edge. Checking again on the same browser can switch to HTTP/3 once it has learned the site supports it; if it never does, UDP 443 may be blocked on that network.
Limits and interpretation
This describes one connection, to our server. Another site, a VPN or a proxy negotiates its own versions. The round trip is to our nearest edge, not end-to-end internet quality. Values that the connection does not report are shown as not reported. Nothing is stored.