Yes — elastic.co has IPv6.

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

This is a saved measurement from 2026-11-01 18:24 UTC. Check elastic.co live now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 elastic.co has an AAAA record and answers on it. ✓ 2600:1901:0:1f6d:: answers · 443	yes
www over IPv6 www.elastic.co has 4 IPv6 addresses and answers on every one we tested. ✓ 2a04:4e42::644 answers · 443✓ 2a04:4e42:200::644 answers · 443✓ 2a04:4e42:400::644 answers · 443✓ 2a04:4e42:600::644 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 4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. ns-1168.awsdns-18.org ✓ns-1737.awsdns-25.co.uk ✓ns-339.awsdns-42.com ✓ns-785.awsdns-34.net ✓	yes

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

https://elastic.co/ via 2600:1901:0:1f6d:: → 301https://www.elastic.co/ via 2a04:4e42::644 → 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/elastic.co.svg)](https://aaaa.bot/elastic.co)

Check again

elastic.co Has IPv6

A (IPv4)	34.107.161.234
AAAA (IPv6)	2600:1901:0:1f6d::

www.elastic.co Has IPv6

Alias of	dualstack.j.sni.global.fastly.net
A (IPv4)	151.101.2.132 151.101.66.132 151.101.130.132 151.101.194.132
AAAA (IPv6)	2a04:4e42::644 2a04:4e42:200::644 2a04:4e42:400::644 2a04:4e42:600::644

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: elastic.co
Measured 2026-11-01 18:24:41 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    34.107.161.234
AAAA (IPv6): 2600:1901:0:1f6d::
www AAAA:    2a04:4e42::644, 2a04:4e42:200::644, 2a04:4e42:400::644, 2a04:4e42:600::644

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: elastic.co has an AAAA record and answers on it.
    2600:1901:0:1f6d::: answers (TCP 443)
- www over IPv6: www.elastic.co has 4 IPv6 addresses and answers on every one we tested.
    2a04:4e42::644: answers (TCP 443)
    2a04:4e42:200::644: answers (TCP 443)
    2a04:4e42:400::644: answers (TCP 443)
    2a04:4e42:600::644: answers (TCP 443)
- Mail servers (MX) have IPv6: Every mail server 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 after 1 redirect: HTTP 200.
    https://elastic.co/ via 2600:1901:0:1f6d:: -> HTTP 301, certificate: valid
    https://www.elastic.co/ via 2a04:4e42::644 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/cBD-tKmkfN

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

Checked 2026-11-01 18:24:41 UTC. Full DNS report: dns.pizza/domain/elastic.co · JSON: /api/v1/elastic.co