Yes — globalsign.com has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 globalsign.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700::6812:14e2 answers · 443✓ 2606:4700::6812:15e2 answers · 443	yes
www over IPv6 www.globalsign.com has 4 IPv6 addresses and answers on every one we tested. ✓ 2a04:4e42::645 answers · 443✓ 2a04:4e42:200::645 answers · 443✓ 2a04:4e42:400::645 answers · 443✓ 2a04:4e42:600::645 answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. globalsign-com.mail.protection.outlook.com ✓	yes
Nameservers have IPv6 8 of 8 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. dns1.p07.nsone.net ✓dns2.p07.nsone.net ✓dns3.p07.nsone.net ✓dns4.p07.nsone.net ✓ns01.globalsigndns.com ✓ns02.globalsigndns.com ✓ns03.globalsigndns.com ✓ns04.globalsigndns.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 3 redirects: HTTP 200.

https://globalsign.com/ via 2606:4700::6812:14e2 → 301https://www.globalsign.com/ via 2a04:4e42::645 → 302https://www.globalsign.com/en/ via 2a04:4e42::645 → 301https://www.globalsign.com/en via 2a04:4e42::645 → 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/globalsign.com.svg)](https://aaaa.bot/globalsign.com)

Check again

globalsign.com Has IPv6

A (IPv4)	104.18.21.226 104.18.20.226
AAAA (IPv6)	2606:4700::6812:14e2 2606:4700::6812:15e2

www.globalsign.com Has IPv6

Alias of	cdn-default.globalsigncdn.com → prod.globalsign.map.fastly.net
A (IPv4)	151.101.130.133 151.101.194.133 151.101.2.133 151.101.66.133
AAAA (IPv6)	2a04:4e42::645 2a04:4e42:200::645 2a04:4e42:400::645 2a04:4e42:600::645

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: globalsign.com
Measured 2026-10-31 07:17:58 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.18.21.226, 104.18.20.226
AAAA (IPv6): 2606:4700::6812:14e2, 2606:4700::6812:15e2
www AAAA:    2a04:4e42::645, 2a04:4e42:200::645, 2a04:4e42:400::645, 2a04:4e42:600::645

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: globalsign.com has 2 IPv6 addresses and answers on every one we tested.
    2606:4700::6812:14e2: answers (TCP 443)
    2606:4700::6812:15e2: answers (TCP 443)
- www over IPv6: www.globalsign.com has 4 IPv6 addresses and answers on every one we tested.
    2a04:4e42::645: answers (TCP 443)
    2a04:4e42:200::645: answers (TCP 443)
    2a04:4e42:400::645: answers (TCP 443)
    2a04:4e42:600::645: answers (TCP 443)
- Mail servers (MX) have IPv6: Every mail server has an AAAA record.
- Nameservers have IPv6: 8 of 8 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 3 redirects: HTTP 200.
    https://globalsign.com/ via 2606:4700::6812:14e2 -> HTTP 301, certificate: valid
    https://www.globalsign.com/ via 2a04:4e42::645 -> HTTP 302, certificate: valid
    https://www.globalsign.com/en/ via 2a04:4e42::645 -> HTTP 301, certificate: valid
    https://www.globalsign.com/en via 2a04:4e42::645 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/-U_F5kp_y2

Permanent link: aaaa.bot/r/-U_F5kp_y2 · How we measure

Checked 2026-10-31 07:17:58 UTC. Full DNS report: dns.pizza/domain/globalsign.com · JSON: /api/v1/globalsign.com