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 2026-11-05. One sweep, on one occasion — not a claim about availability, and not a grade.
- Transports answered
- QUIC and WebTransport
- Drafts answered
- draft 18
- Identifies itself as
- did not say
- Media delivery
- delivered, first object 173ms
- Violations recorded
- none
- Address families
- IPv4
With two publishers of one track
- MUST Delivered one Object with two different payloads on one subscription. the track with differing payloads, draft 18
- SHOULD Delivered the same Object twice, with the same bytes, on one subscription. the track with identical payloads, draft 18
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
- — The endpoint is up and 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; its hostname names the AWS us-west-2 region. The project’s README also lists it as https://relay.quicr.org:33437/relay.
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.