No — metrics.census.gov is IPv4 only.

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

D
IPv6 readiness
The website has no IPv6.
Website over IPv6
metrics.census.gov has no AAAA record.		no
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
2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
ns1e.census.gov ✓ns2e.census.gov ✓
yes

What's keeping metrics.census.gov from an A

  1. metrics.census.gov is an alias of census.gov.sc.omtrdc.net, which has no IPv6
    metrics.census.gov is a CNAME, so it can't also have its own AAAA record. Ask whoever runs census.gov.sc.omtrdc.net to enable IPv6 there — or replace the alias with the A and AAAA records they give you. Why some hosts don't offer IPv6
  2. Mail servers without IPv6
    Your domain's mail goes to its own address, which has no AAAA record.

Check again

metrics.census.gov  IPv4 only

Alias ofcensus.gov.sc.omtrdc.net
A (IPv4)63.140.39.227
63.140.38.204
63.140.38.77
63.140.39.78
63.140.39.68
63.140.38.248
63.140.38.130
63.140.39.210
63.140.39.154
63.140.39.114
AAAA (IPv6)none

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/Vg1F_OSaP7 · How we measure

Checked 2026-11-01 21:39:34 UTC. Full DNS report: dns.pizza/domain/metrics.census.gov · JSON: /api/v1/metrics.census.gov