Yes — portal.dsca.mil has IPv6.

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

B
IPv6 readiness
Works over IPv6, with one gap: its nameservers lack IPv6.
Website over IPv6
portal.dsca.mil has 2 IPv6 addresses and answers on every one we tested.
✓ 2605:4300:2c12:0:88e2:60b3:5ef5:51c7 answers · 443✓ 2605:4300:2c12:1:8457:671c:d135:1343 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
No nameserver has an AAAA record — an IPv6-only resolver can't reach this domain's DNS.
dns-pub-f1-u.pentagon.mil ✗dns-pub-f2-u.pentagon.mil ✗dns-pub-f3-u.pentagon.mil ✗
no
HTTPS over IPv6 · not part of the grade yet
The certificate served over IPv6 at 2605:4300:2c12:0:88e2:60b3:5ef5:51c7 isn't valid for portal.dsca.mil: UNABLE_TO_GET_ISSUER_CERT_LOCALLY.
https://portal.dsca.mil/ via 2605:4300:2c12:0:88e2:60b3:5ef5:51c7 · UNABLE_TO_GET_ISSUER_CERT_LOCALLY
problem
 Which outside scripts, fonts, payments or chat portal.dsca.mil loads from have no IPv6.
 Load portal.dsca.mil over IPv6 from up to six other places — a second opinion.

What's keeping portal.dsca.mil from an A

  1. The certificate served over IPv6 is wrong
    The certificate served over IPv6 at 2605:4300:2c12:0:88e2:60b3:5ef5:51c7 isn't valid for portal.dsca.mil: UNABLE_TO_GET_ISSUER_CERT_LOCALLY. Often the IPv6 address points at a different server (or an old one) than IPv4 does. Make sure 2605:4300:2c12:0:88e2:60b3:5ef5:51c7 serves the same certificate as your IPv4 address.
  2. Nameservers without IPv6
    dns-pub-f1-u.pentagon.mil, dns-pub-f2-u.pentagon.mil, dns-pub-f3-u.pentagon.mil all have no AAAA record, so a resolver that only speaks IPv6 can't look your domain up. Most DNS providers offer IPv6 nameservers; ask yours, or move DNS to one that does.

Check again

portal.dsca.mil  Has IPv6

Alias of72058381090684970.72058381090684928.h.g.zpa-app.net → exporter.zpagov.net → exporter.gslb.zpagov.net → was3.exporter.gslb.zpagov.net → exporter-lb-be09eb149ec1c51f.elb.us-gov-east-1.amazonaws.com
A (IPv4)170.85.49.48
170.85.49.49
AAAA (IPv6)2605:4300:2c12:0:88e2:60b3:5ef5:51c7
2605:4300:2c12:1:8457:671c:d135:1343

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/qPn1rH6DP1 · How we measure

Checked 2026-11-15 18:26:22 UTC. Full DNS report: dns.pizza/domain/portal.dsca.mil · Age, certificate and blocklists: how.is/portal.dsca.mil · JSON: /api/v1/portal.dsca.mil