Yes — mmcdn.com has IPv6.

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

This is a saved measurement from 2026-11-01 14:51 UTC. Check mmcdn.com live now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 mmcdn.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700::6812:ca04 answers · 443✓ 2606:4700::6810:5c12 answers · 443	yes
www over IPv6 www.mmcdn.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700::6812:ca04 answers · 443✓ 2606:4700::6810:5c12 answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. aspmx.l.google.com ✓alt3.aspmx.l.google.com ✓alt4.aspmx.l.google.com ✓alt1.aspmx.l.google.com ✓alt2.aspmx.l.google.com ✓	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. cody.ns.cloudflare.com ✓nina.ns.cloudflare.com ✓	yes

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

https://mmcdn.com/ via 2606:4700::6812:ca04 → 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/mmcdn.com.svg)](https://aaaa.bot/mmcdn.com)

Check again

mmcdn.com Has IPv6

A (IPv4)	104.16.92.18 104.18.202.4
AAAA (IPv6)	2606:4700::6812:ca04 2606:4700::6810:5c12

www.mmcdn.com Has IPv6

A (IPv4)	104.16.92.18 104.18.202.4
AAAA (IPv6)	2606:4700::6812:ca04 2606:4700::6810:5c12

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: mmcdn.com
Measured 2026-11-01 14:51:31 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.16.92.18, 104.18.202.4
AAAA (IPv6): 2606:4700::6812:ca04, 2606:4700::6810:5c12
www AAAA:    2606:4700::6812:ca04, 2606:4700::6810:5c12

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: mmcdn.com has 2 IPv6 addresses and answers on every one we tested.
    2606:4700::6812:ca04: answers (TCP 443)
    2606:4700::6810:5c12: answers (TCP 443)
- www over IPv6: www.mmcdn.com has 2 IPv6 addresses and answers on every one we tested.
    2606:4700::6812:ca04: answers (TCP 443)
    2606:4700::6810:5c12: answers (TCP 443)
- Mail servers (MX) have IPv6: Every mail server has an AAAA record.
- Nameservers have IPv6: 2 of 2 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 200.
    https://mmcdn.com/ via 2606:4700::6812:ca04 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/xUnDwRUamq

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

Checked 2026-11-01 14:51:31 UTC. Full DNS report: dns.pizza/domain/mmcdn.com · JSON: /api/v1/mmcdn.com