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moq.dev CDN

moq.dev

cdn.moq.dev:443/anon

QUIC WT drafts 14–22 IPv4 IPv6

A deployment of moq.dev. 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
moq-lite-rs
Protocols accepted
moqt-22, h3, moqt-21, moqt-20, moqt-19, moqt-18, moqt-17, moqt-16, moqt-15, moq-00
Media delivery
delivered, first object 40ms
Violations recorded
2

Certificate

Subject
CN=cdn.moq.pro
Issuer
C=US, O=Let's Encrypt, CN=YE1
Valid until
2026-12-12 38 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 SUBSCRIBEFETCHTRACK_STATUSSUBSCRIBE_NAMESPACEPUBLISH_NAMESPACESUBSCRIBE_TRACKSPUBLISH
22 QUIC ✓ err ✓ err ✓ err ✓ ok ✓ ok ✓ err ✓ err
21 QUIC ✓ err ✓ err ✓ err ✓ ok ✓ ok ✓ err ✓ err
20 QUIC ✓ err ✓ err ✓ err ✓ ok ✓ ok ✓ err ✓ err
19 QUIC ✓ err ✓ err ✓ err ✓ ok ✓ ok ✓ err ✓ err
18 QUIC ✓ err ✓ err ✓ err ✓ ok ✓ ok ✓ err ✓ err
17 QUIC ✓ err ✓ err ✓ err ✓ ok ✓ ok · ✓ err
16 QUIC – – – ✓ ok – · –
15 QUIC – – – – – · –
14 QUIC – – – – – · –

Media delivery

One publisher and two subscribers, to see whether an object published through this endpoint reaches a client that asked for it.

Object delivered end to end draft 22 · QUIC
Objects delivered
5/7
Groups / subgroups
2 / 2
Subscribe answered
78ms
First object
40ms
Stream framing
streams kept as sent
Second subscriber
Same object delivered to a second subscriber
Offers a track
relay refused the track

Two publishers of one track

Two publishers announce the same namespace and publish the same tracks, one with identical payloads and one with payloads that differ by publisher. Partway through, the publisher serving the subscribers disconnects without notice. A fresh subscription, sent afterwards, shows whether the remaining publisher could still be reached.

Measured draft 22 · QUIC
Publisher Role Announcement Subscribed to Ended by the relay
first publisher standby The relay accepted it and never subscribed to it while a subscriber was waiting. accepted, REQUEST_OK in 38 ms — —
second publisher disconnected serving The relay accepted it and subscribed to it. accepted, REQUEST_OK in 38 ms differing payloads, identical payloads —
Track Objects From When the publisher left Ended by
identical payloads each object once 15 delivered — ended by the relay PUBLISH_DONE 0 “internal error”
differing payloads each object once 15 delivered second publisher ended by the relay PUBLISH_DONE 0 “internal error”

A fresh subscription after the publisher left: delivered, the relay subscribed to the first publisher, first object in 82 ms.

MUST

Ended or stalled a subscription when its publisher left, while the other publisher of the track was still accepted and reachable.

Draft 22, on the track with identical payloads

Requirement
A relay must forward Objects of one track from every publisher of it to the matching subscriptions.
Specification
draft-ietf-moq-transport-22, Section 7.3
MUST

Ended or stalled a subscription when its publisher left, while the other publisher of the track was still accepted and reachable.

Draft 22, on the track with differing payloads

Requirement
A relay must forward Objects of one track from every publisher of it to the matching subscriptions.
Specification
draft-ietf-moq-transport-22, Section 7.3
MUST

Accepted a publisher and never subscribed to it while a subscription to its namespace was live.

Draft 22, on the first publisher

Requirement
A relay must send a SUBSCRIBE to every publisher that announced a matching namespace.
Specification
draft-ietf-moq-transport-22, Section 7.6

Specification violations

A track namespace must have no more fields than the draft allows, and at least one where the draft requires it.

Draft 15 over QUIC, during the control message probe (SUBSCRIBE)

Specification
draft-ietf-moq-transport-15, Section 2.4.1
Required response
close the session with error code 0x3

A track namespace must have no more fields than the draft allows, and at least one where the draft requires it.

Draft 14 over QUIC, during the control message probe (SUBSCRIBE)

Specification
draft-ietf-moq-transport-14, Section 2.4.1
Required response
close the session with error code 0x3

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 22 · QUIC

  • 0x07 moqt_implementation = moq-lite-rs
  • 0x40b54 not defined by this draft = 3936146074472874000
  • 0x40b5a not defined by this draft = 1
  • 0x40b5c not defined by this draft = 1

draft 21 · QUIC

  • 0x07 moqt_implementation = moq-lite-rs
  • 0x40b54 not defined by this draft = 3936146074472874000
  • 0x40b5a not defined by this draft = 1
  • 0x40b5c not defined by this draft = 1

draft 20 · QUIC

  • 0x07 moqt_implementation = moq-lite-rs
  • 0x40b54 not defined by this draft = 3936146074472874000
  • 0x40b5a not defined by this draft = 1
  • 0x40b5c not defined by this draft = 1

draft 19 · QUIC

  • 0x07 moqt_implementation = moq-lite-rs
  • 0x40b54 not defined by this draft = 3936146074472874000
  • 0x40b5a not defined by this draft = 1
  • 0x40b5c not defined by this draft = 1

draft 18 · QUIC

  • 0x07 moqt_implementation = moq-lite-rs
  • 0x40b54 not defined by this draft = 3936146074472874000
  • 0x40b5a not defined by this draft = 1
  • 0x40b5c not defined by this draft = 1

draft 17 · QUIC

  • 0x07 moqt_implementation = moq-lite-rs
  • 0x40b54 not defined by this draft = 3936146074472874000
  • 0x40b5a not defined by this draft = 1
  • 0x40b5c not defined by this draft = 1

draft 16 · QUIC

  • 0x02 max_request_id = 4294967295
  • 0x07 moqt_implementation = moq-lite-rs
  • 0x40b5a not defined by this draft = 1
  • 0x40b5c not defined by this draft = 1

draft 15 · QUIC

  • 0x40b5a not defined by this draft = 1
  • 0x40b5c not defined by this draft = 1
  • 0x02 max_request_id = 4294967295
  • 0x07 moqt_implementation = moq-lite-rs

draft 14 · QUIC

  • 0x40b5c not defined by this draft = 1
  • 0x02 max_request_id = 4294967295
  • 0x40b5a not defined by this draft = 1
  • 0x07 not defined by this draft = moq-lite-rs (moqt_implementation in 15–23)

The relay names itself moq-lite-rs under option 0x07, which is MOQT_IMPLEMENTATION from draft-15 onward. Draft-14 assigns nothing to 0x07, so a draft-14 client has no reason to read it as a name.

History

9 sweeps, newest first. A step where the probe build or the measuring location changed is marked, and is not read as a change of the relay.

  • 29 Oct 2026 → 30 Oct 2026 · measured differently

    • Delivery: Namespace accepted, track never asked for → Object delivered end to end.
    • Offering a track: not attempted → relay refused the track.
  • 27 Oct 2026 → 29 Oct 2026 · measured differently

    • Offering a track: not measured → not attempted.
SweepReachableDraftsDeliveryOffers a trackViolationsTwo publishers
5 Nov 2026yes14, 15, 16, 17, 18, 19, 20, 21, 22Object delivered end to endrelay refused the track1no switch-over, publisher on standby
4 Nov 2026yes14, 15, 16, 17, 18, 19, 20, 21, 22Object delivered end to endrelay refused the track1no switch-over, publisher on standby
3 Nov 2026yes14, 15, 16, 17, 18, 19, 20, 21, 22Object delivered end to endrelay refused the track1no switch-over, publisher on standby
2 Nov 2026yes14, 15, 16, 17, 18, 19, 20, 21, 22Object delivered end to endrelay refused the track1no switch-over, publisher on standby
1 Nov 2026yes14, 15, 16, 17, 18, 19, 20, 21, 22Object delivered end to endrelay refused the track1no switch-over, publisher on standby
31 Oct 2026yes14, 15, 16, 17, 18, 19, 20, 21, 22Object delivered end to endrelay refused the track1no switch-over, publisher on standby
30 Oct 2026yes14, 15, 16, 17, 18, 19, 20, 21, 22Object delivered end to endrelay refused the track1no switch-over, publisher on standby
29 Oct 2026yes14, 15, 16, 17, 18, 19, 20, 21, 22Namespace accepted, track never asked fornot attempted1no switch-over, publisher on standby
27 Oct 2026yes14, 15, 16, 17, 18, 19, 20, 21, 22Namespace accepted, track never asked for—1—

Notes

  • — The endpoint is up and 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.