Yes — maryland.gov has IPv6.

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

Measured 2026-11-02 19:42 UTC. We reuse a result for up to a week, so we aren't testing the same site over and over. Check maryland.gov now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 maryland.gov has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700::6812:1179 answers · 443✓ 2606:4700::6812:1079 answers · 443	yes
www over IPv6 www.maryland.gov has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700::6812:1079 answers · 443✓ 2606:4700::6812:1179 answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. aspmx.l.google.com ✓alt1.aspmx.l.google.com ✓alt2.aspmx.l.google.com ✓alt3.aspmx.l.google.com ✓alt4.aspmx.l.google.com ✓	yes
Nameservers have IPv6 3 of 3 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. blue.foundationdns.com ✓blue.foundationdns.net ✓blue.foundationdns.org ✓	yes

First measured 2026-11-02; last confirmed 2026-11-02.

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

https://maryland.gov/ via 2606:4700::6812:1179 → 301https://www.maryland.gov/ via 2606:4700::6812:1079 → 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/maryland.gov.svg)](https://aaaa.bot/maryland.gov)

Check again

maryland.gov Has IPv6

A (IPv4)	104.18.17.121 104.18.16.121
AAAA (IPv6)	2606:4700::6812:1179 2606:4700::6812:1079

www.maryland.gov Has IPv6

A (IPv4)	104.18.16.121 104.18.17.121
AAAA (IPv6)	2606:4700::6812:1079 2606:4700::6812:1179

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: maryland.gov
Measured 2026-11-02 19:42:04 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.18.17.121, 104.18.16.121
AAAA (IPv6): 2606:4700::6812:1179, 2606:4700::6812:1079
www AAAA:    2606:4700::6812:1079, 2606:4700::6812:1179

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: maryland.gov has 2 IPv6 addresses and answers on every one we tested.
    2606:4700::6812:1179: answers (TCP 443)
    2606:4700::6812:1079: answers (TCP 443)
- www over IPv6: www.maryland.gov has 2 IPv6 addresses and answers on every one we tested.
    2606:4700::6812:1079: answers (TCP 443)
    2606:4700::6812:1179: answers (TCP 443)
- Mail servers (MX) have IPv6: Every mail server has an AAAA record.
- Nameservers have IPv6: 3 of 3 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://maryland.gov/ via 2606:4700::6812:1179 -> HTTP 301, certificate: valid
    https://www.maryland.gov/ via 2606:4700::6812:1079 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/foVdFCWBwb

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

Checked 2026-11-02 19:42:04 UTC. Full DNS report: dns.pizza/domain/maryland.gov · Age, certificate and blocklists: how.is/maryland.gov · JSON: /api/v1/maryland.gov