moxygen
Metafb.mvfst.net:9448/moq-relay
A deployment of Moxygen, operated by Meta. Everything below was measured on this deployment, at whatever version and configuration it was running — it is not a measurement of that codebase. About this endpoint
At a glance
- Identifies itself as
- did not say
- Protocols accepted
- moq-00, h3, moqt-16, moqt-18
- Media delivery
- delivered, first object 108ms
- Violations recorded
- none
Certificate
- Subject
- CN=fb.mvfst.net
- Issuer
- C=US, O=Let's Encrypt, CN=YE1
- Valid until
- 2026-12-24 82 days left
- Trust
- publicly-trusted
- Verification
- Completed with the certificate verified
Control messages
Which control messages this endpoint answered, per draft. An error reply is still an answer — ok and err are both support; what is recorded as missing is a message that got no answer at all. A dash is neither: it means the exchange ended on our side, so nothing about this endpoint was measured there.
| Draft | SUBSCRIBE | FETCH | TRACK_STATUS | SUBSCRIBE_NAMESPACE | PUBLISH_NAMESPACE |
|---|---|---|---|---|---|
| 18 QUIC | ✓ err | ✓ err | ✓ err | ✓ ok | ✓ ok |
| 16 QUIC | ✓ err | ✓ err | ✓ err | ✓ ok | ✓ ok |
| 14 QUIC | ✓ err | ✓ err | ✓ err | ✓ err | ✓ err |
Media delivery
One publisher and two subscribers, to see whether an object published through this endpoint reaches a client that asked for it.
- Objects delivered
- 7/7
- Groups / subgroups
- 2 / 3
- Subscribe answered
- 213ms
- First object
- 108ms
- Stream framing
- preserved
- Second subscriber
- Same object delivered to a second subscriber
Specification violations
None recorded. Nothing this endpoint sent broke a requirement the probe checks — which is not the same as saying it implements the draft completely.
Setup parameters
What this endpoint sent back in its setup response, per draft. A parameter with no name is a code point the negotiated draft does not define.
draft 18 · QUIC
- 0x02 not defined by this draft = 100 (max_request_id in 11–16) (max_subscribe_id in 7–10)
draft 16 · QUIC
- 0x02 max_request_id = 100
- 0x04 max_auth_token_cache_size = 1024
draft 14 · QUIC
- 0x02 max_request_id = 100
- 0x04 max_auth_token_cache_size = 1024
Notes
- — the peer is up but refused the offered protocols on at least one transport
Is this your relay?
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.