Yes — hubspot.net has IPv6.

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

Measured 2026-11-01 14:56 UTC. We reuse a result for up to a week, so we aren't testing the same site over and over. Check hubspot.net now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 hubspot.net has 4 IPv6 addresses and answers on every one we tested (1 more not tested). ✓ 2606:4700::6812:583e answers · 443✓ 2606:4700::6812:593e answers · 443✓ 2606:4700::6812:5a3e answers · 443✓ 2606:4700::6812:5b3e answers · 443– 2606:4700::6812:573e not tested	yes
www over IPv6 www.hubspot.net has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:2c40::c73c:671e answers · 443✓ 2606:2c40::c73c:67e2 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 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. jerry.ns.cloudflare.com ✓yolanda.ns.cloudflare.com ✓	yes

First measured 2026-11-01; last confirmed 2026-11-01.

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

https://hubspot.net/ via 2606:4700::6812:583e → 301https://www.hubspot.com/ via 2606:4700:4401::6812:2772 → 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/hubspot.net.svg)](https://aaaa.bot/hubspot.net)

Check again

hubspot.net Has IPv6

A (IPv4)	104.18.87.62 104.18.88.62 104.18.89.62 104.18.90.62 104.18.91.62
AAAA (IPv6)	2606:4700::6812:583e 2606:4700::6812:593e 2606:4700::6812:5a3e 2606:4700::6812:5b3e 2606:4700::6812:573e

www.hubspot.net Has IPv6

Alias of	53.group3.sites.hubspot.net → group3.sites.hscoscdn00.net
A (IPv4)	199.60.103.30 199.60.103.226
AAAA (IPv6)	2606:2c40::c73c:671e 2606:2c40::c73c:67e2

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: hubspot.net
Measured 2026-11-01 14:56:20 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.18.87.62, 104.18.88.62, 104.18.89.62, 104.18.90.62, 104.18.91.62
AAAA (IPv6): 2606:4700::6812:583e, 2606:4700::6812:593e, 2606:4700::6812:5a3e, 2606:4700::6812:5b3e, 2606:4700::6812:573e
www AAAA:    2606:2c40::c73c:671e, 2606:2c40::c73c:67e2

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: hubspot.net has 4 IPv6 addresses and answers on every one we tested (1 more not tested).
    2606:4700::6812:583e: answers (TCP 443)
    2606:4700::6812:593e: answers (TCP 443)
    2606:4700::6812:5a3e: answers (TCP 443)
    2606:4700::6812:5b3e: answers (TCP 443)
    2606:4700::6812:573e: not tested
- www over IPv6: www.hubspot.net has 2 IPv6 addresses and answers on every one we tested.
    2606:2c40::c73c:671e: answers (TCP 443)
    2606:2c40::c73c:67e2: 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: 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 after 1 redirect: HTTP 200.
    https://hubspot.net/ via 2606:4700::6812:583e -> HTTP 301, certificate: valid
    https://www.hubspot.com/ via 2606:4700:4401::6812:2772 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/uPRPz20ttI

Permanent link: aaaa.bot/r/uPRPz20ttI · How we measure

Checked 2026-11-01 14:56:20 UTC. Full DNS report: dns.pizza/domain/hubspot.net · JSON: /api/v1/hubspot.net