Yes — comcasta.com has IPv6.

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

This is a saved measurement from 2026-11-14 01:31 UTC. Check comcasta.com live now

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
comcasta.com has an AAAA record and answers on it.
✓ 2001:ba0:2ea:1100::1 answers · 443
yes
www over IPv6
www.comcasta.com has an AAAA record and answers on it.
✓ 2001:ba0:2ea:1100::1 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
1 of 1 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
ns1.siglab.live ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 404.
https://comcasta.com/ via 2001:ba0:2ea:1100::1 → 404
works

Nothing keeping you from an A

  1. Nothing to fix
    Show it off: add the badge to your README.
    [![IPv6](https://aaaa.bot/badge/comcasta.com.svg)](https://aaaa.bot/comcasta.com)

Check again

comcasta.com  Has IPv6

A (IPv4)217.154.97.77
AAAA (IPv6)2001:ba0:2ea:1100::1

www.comcasta.com  Has IPv6

A (IPv4)217.154.97.77
AAAA (IPv6)2001:ba0:2ea:1100::1

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

 Permanent link: aaaa.bot/r/pcf8DUO2c2 · How we measure

Checked 2026-11-14 01:31:31 UTC. Full DNS report: dns.pizza/domain/comcasta.com · Age, certificate and blocklists: how.is/comcasta.com · JSON: /api/v1/comcasta.com