No — house.gov is IPv4 only.

Has an IPv4 address but no IPv6 (AAAA) record. IPv6-only visitors can't reach it directly.

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 house.gov now

D
IPv6 readiness
The website has no IPv6.
Website over IPv6
house.gov has no AAAA record.		no
www over IPv6
www.house.gov has 2 IPv6 addresses and answers on every one we tested.
✓ 2600:1408:c400:f95::12a8 answers · 443✓ 2600:1408:c400:f80::12a8 answers · 443
yes
Mail servers (MX) have IPv6
No MX records, so mail goes to the domain's own address (implicit MX). It has no AAAA record.		no
Nameservers have IPv6
4 of 6 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
oxygen.house.gov ✗oxygen2.house.gov ✗pdns109.ultradns.biz ✓pdns109.ultradns.com ✓pdns109.ultradns.net ✓pdns109.ultradns.org ✓
yes

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

What's keeping house.gov from an A

  1. Give house.gov an IPv6 address
    Ask your hosting provider for the site's IPv6 address (or the hostname to point at), then publish it as an AAAA record. If your host doesn't offer IPv6, a proxy that does can sit in front. How to add an AAAA record
  2. Mail servers without IPv6
    Your domain's mail goes to its own address, which has no AAAA record.

Check again

house.gov  IPv4 only

A (IPv4)3.33.159.71
15.197.146.213
AAAA (IPv6)none

www.house.gov  Has IPv6

Alias ofwwwcl.house.gov → wc.house.gov.edgekey.net → e4776.dscb.akamaiedge.net
A (IPv4)104.81.166.177
AAAA (IPv6)2600:1408:c400:f95::12a8
2600:1408:c400:f80::12a8

What this means

Visitors on IPv6-only networks (many mobile carriers) can still reach it, but only through a translator their carrier runs (NAT64). The site itself has no IPv6 address — and you can't make one up from the IPv4. Why some hosts don't offer it

Copy the evidence — a citation-ready record of this measurement

 Permanent link: aaaa.bot/r/VJJmt7NjUc · How we measure

Checked 2026-11-01 14:56:47 UTC. Full DNS report: dns.pizza/domain/house.gov · JSON: /api/v1/house.gov