Yes — weather.gov has IPv6.

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

This is a saved measurement from 2026-11-02 11:05 UTC. Check weather.gov live now

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
weather.gov has 4 IPv6 addresses and answers on every one we tested (1 more not tested).
✓ 2600:1408:c400:1c::17d4:fa84 answers · 443✓ 2600:1408:c400:1c::17d4:fa8c answers · 443✓ 2600:1408:c400:1c::17d4:fa8f answers · 443✓ 2600:1408:c400:1c::17d4:fa95 answers · 443– 2600:1408:c400:1c::17d4:fa9a not tested
yes
www over IPv6
www.weather.gov has 4 IPv6 addresses and answers on every one we tested (1 more not tested).
✓ 2600:1408:c400:1c::17d4:fa9a answers · 443✓ 2600:1408:c400:1c::17d4:fa84 answers · 443✓ 2600:1408:c400:1c::17d4:fa8f answers · 443✓ 2600:1408:c400:1c::17d4:fa8c answers · 443– 2600:1408:c400:1c::17d4:fa95 not tested
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
6 of 6 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
a1-97.akam.net ✓a6-65.akam.net ✓a7-66.akam.net ✓a11-66.akam.net ✓a18-67.akam.net ✓a26-64.akam.net ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.
https://weather.gov/ via 2600:1408:c400:1c::17d4:fa84 → 301https://www.weather.gov/ via 2600:1408:c400:1c::17d4:fa9a → 200
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/weather.gov.svg)](https://aaaa.bot/weather.gov)

Check again

weather.gov  Has IPv6

A (IPv4)23.212.250.134
23.212.250.138
23.212.250.140
23.212.250.141
23.212.250.143
23.212.250.144
23.212.250.148
23.212.250.149
AAAA (IPv6)2600:1408:c400:1c::17d4:fa84
2600:1408:c400:1c::17d4:fa8c
2600:1408:c400:1c::17d4:fa8f
2600:1408:c400:1c::17d4:fa95
2600:1408:c400:1c::17d4:fa9a

www.weather.gov  Has IPv6

Alias ofsancert.weather.gov.edgekey.net → e353369.dscg.akamaiedge.net
A (IPv4)23.212.250.140
23.212.250.141
23.212.250.149
23.212.250.143
AAAA (IPv6)2600:1408:c400:1c::17d4:fa9a
2600:1408:c400:1c::17d4:fa84
2600:1408:c400:1c::17d4:fa8f
2600:1408:c400:1c::17d4:fa8c
2600:1408:c400:1c::17d4:fa95

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/v2BQnjI4G- · How we measure

Checked 2026-11-02 11:05:16 UTC. Full DNS report: dns.pizza/domain/weather.gov · JSON: /api/v1/weather.gov