Yes — cdn.uoregon.edu has IPv6.

Has both IPv4 (A) and IPv6 (AAAA) addresses.

This is a saved measurement from 2026-11-03 02:44 UTC. Check cdn.uoregon.edu live now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 cdn.uoregon.edu has an AAAA record and answers on it. ✓ 2603:1061:14:48::1 answers · 443	yes
Mail servers (MX) have IPv6 No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record.	yes
Nameservers have IPv6 4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. ns1.f5cloudservices.com ✓phloem.uoregon.edu ✓ruminant.uoregon.edu ✓lsu-bdds1.lsu.edu ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 400.

https://cdn.uoregon.edu/ via 2603:1061:14:48::1 → 400

works

Nothing keeping you from an A

Nothing to fix
Show it off: add the badge to your README.
[![IPv6](https://aaaa.bot/badge/cdn.uoregon.edu.svg)](https://aaaa.bot/cdn.uoregon.edu)

Check again

cdn.uoregon.edu Has IPv6

Alias of	uocdn1-fcckftgsevdehye7.a01.azurefd.net → mr-a01.tm-azurefd.net
A (IPv4)	150.171.109.74
AAAA (IPv6)	2603:1061:14:48::1

Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).

Copy the evidence — a citation-ready record of this measurement

IPv6 measurement: cdn.uoregon.edu
Measured 2026-11-03 02:44:25 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    150.171.109.74
AAAA (IPv6): 2603:1061:14:48::1

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: cdn.uoregon.edu has an AAAA record and answers on it.
    2603:1061:14:48::1: answers (TCP 443)
- Mail servers (MX) have IPv6: No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record.
- Nameservers have IPv6: 4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.

Reachability = a TCP connection opened on port 443 (or 80).

HTTPS over IPv6 (not graded): Loads over IPv6 with a valid certificate: HTTP 400.
    https://cdn.uoregon.edu/ via 2603:1061:14:48::1 -> HTTP 400, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/tkZVSmQWqQ

Permanent link: aaaa.bot/r/tkZVSmQWqQ · How we measure

Checked 2026-11-03 02:44:25 UTC. Full DNS report: dns.pizza/domain/cdn.uoregon.edu · Age, certificate and blocklists: how.is/cdn.uoregon.edu · JSON: /api/v1/cdn.uoregon.edu