moxygen
fb.mvfst.net:9448/moq-relay
Meta's public Moxygen relay, on Meta's own QUIC stack.
What this is
- Operated by
- Meta
- Running
- Moxygen
- Published URL
- https://fb.mvfst.net:9448/moq-relay
- Published as speaking
- draft-16, draft-18, draft-22 what its operator says, not what was measured
- TestLab id
- moxygen-meta
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
- drafts 14, 16, 18, 22
- Identifies itself as
- Meta MoQ C++ Draft-14
- Media delivery
- delivered, first object 115ms
- Violations recorded
- 1
- Address families
- IPv4
One reply left the specification
- One Track Alias must not be used for two tracks at once. draft 22 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
- — 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.
Meta’s public Moxygen relay, on Meta’s own QUIC stack (mvfst). Raw-QUIC clients are given moqt://fb.mvfst.net:9448/moq-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.