libquicr (quicr.org)
us-west-2.relay.quicr.org:33437/relay
Cisco's public QuiCR relay, named for an AWS region.
What this is
What TestLab measured
What this endpoint answered on 2026-09-14. One sweep, on one occasion — not a claim about availability, and not a grade.
- Transports answered
- QUIC and WebTransport
- Drafts answered
- drafts 15–16
- Identifies itself as
- did not say
- Media delivery
- not attempted
- Violations recorded
- 1
- Address families
- IPv4
One reply left the specification
- track-property-out-of-range draft 16 over QUIC
What each one is, and what the specification requires, is on the report.
Also recorded during the sweep — conditions of the connection rather than findings about the protocol
- — QUIC completes only with certificate verification disabled
- — the peer is up but refused the offered protocols on at least one transport
Certificate, per-draft control message support, the delivery run and every recorded violation in full.
The QuiCR project’s public relay, run by Cisco and named for an AWS region — a deployed service on rented infrastructure rather than a demo, on the strength of the name. One node.
A raw-QUIC session completes against it only with certificate verification disabled. That is a fact about the certificate rather than about the relay’s protocol behaviour, and the report records the two separately.
Is this your endpoint?
If something here is wrong, tell us — we keep what each result rests on, so a disputed one gets re-read rather than re-argued. We can also run this against endpoints that are not public.