Yes — cdn.miami.edu has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 cdn.miami.edu has 2 IPv6 addresses and answers on every one we tested. ✓ 2600:1408:c400:11::17cd:6b44 answers · 443✓ 2600:1408:c400:11::17cd:6b54 answers · 443	yes
www over IPv6 www.cdn.miami.edu has 2 IPv6 addresses and answers on every one we tested. ✓ 2600:1408:c400:16::17d4:f807 answers · 443✓ 2600:1408:c400:16::17d4:f81a 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 6 of 6 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. a16-67.akam.net ✓a3-64.akam.net ✓a1-122.akam.net ✓a7-65.akam.net ✓a22-65.akam.net ✓a14-64.akam.net ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.

https://cdn.miami.edu/ via 2600:1408:c400:11::17cd:6b44 → 301https://cdn.miami.edu/index-under-construction.html via 2600:1408:c400:11::17cd:6b44 → 200

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.miami.edu.svg)](https://aaaa.bot/cdn.miami.edu)

Check again

cdn.miami.edu Has IPv6

Alias of	prod-miami.edu.edgekey.net → e95862.dsca.akamaiedge.net
A (IPv4)	23.212.251.215 23.212.251.205
AAAA (IPv6)	2600:1408:c400:11::17cd:6b44 2600:1408:c400:11::17cd:6b54

www.cdn.miami.edu Has IPv6

Alias of	prod-miami.edu.edgekey.net → e95862.dsca.akamaiedge.net
A (IPv4)	23.212.251.215 23.212.251.205
AAAA (IPv6)	2600:1408:c400:16::17d4:f807 2600:1408:c400:16::17d4:f81a

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.miami.edu
Measured 2026-11-03 08:40:43 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    23.212.251.215, 23.212.251.205
AAAA (IPv6): 2600:1408:c400:11::17cd:6b44, 2600:1408:c400:11::17cd:6b54
www AAAA:    2600:1408:c400:16::17d4:f807, 2600:1408:c400:16::17d4:f81a

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: cdn.miami.edu has 2 IPv6 addresses and answers on every one we tested.
    2600:1408:c400:11::17cd:6b44: answers (TCP 443)
    2600:1408:c400:11::17cd:6b54: answers (TCP 443)
- www over IPv6: www.cdn.miami.edu has 2 IPv6 addresses and answers on every one we tested.
    2600:1408:c400:16::17d4:f807: answers (TCP 443)
    2600:1408:c400:16::17d4:f81a: 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: 6 of 6 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 after 1 redirect: HTTP 200.
    https://cdn.miami.edu/ via 2600:1408:c400:11::17cd:6b44 -> HTTP 301, certificate: valid
    https://cdn.miami.edu/index-under-construction.html via 2600:1408:c400:11::17cd:6b44 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/Am8wKyp5hM

Permanent link: aaaa.bot/r/Am8wKyp5hM · How we measure

Checked 2026-11-03 08:40:43 UTC. Full DNS report: dns.pizza/domain/cdn.miami.edu · Age, certificate and blocklists: how.is/cdn.miami.edu · JSON: /api/v1/cdn.miami.edu