Yes — prop.systems 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
prop.systems has 4 IPv6 addresses and answers on every one we tested (4 more not tested).
✓ 2a05:d014:179b:c403:7bf9:16b6:e80e:e529 answers · 443✓ 2a05:d014:179b:c403:9f9f:9ecc:7f5f:4327 answers · 443✓ 2a05:d018:1d22:801:d2f9:a416:8dd7:17c8 answers · 443✓ 2a05:d014:179b:c403:7136:57f9:401a:e83d answers · 443– 2a05:d014:179b:c400:a327:40ee:24cc:6180 not tested– 2a05:d014:179b:c403:bad8:4067:c728:cb1 not tested– 2600:1f1c:6db:8800:af12:96a6:b2f3:41ed not tested– 2406:da1e:214:c901:85f9:e397:190d:62b7 not tested
yes
www over IPv6
www.prop.systems has 4 IPv6 addresses and answers on every one we tested (4 more not tested).
✓ 2a05:d014:179b:c403:9f9f:9ecc:7f5f:4327 answers · 443✓ 2a05:d014:179b:c403:7bf9:16b6:e80e:e529 answers · 443✓ 2a05:d014:179b:c403:7136:57f9:401a:e83d answers · 443✓ 2a05:d014:179b:c400:a327:40ee:24cc:6180 answers · 443– 2a05:d014:179b:c403:bad8:4067:c728:cb1 not tested– 2a05:d018:1d22:801:d2f9:a416:8dd7:17c8 not tested– 2406:da1e:214:c901:85f9:e397:190d:62b7 not tested– 2600:1f1c:6db:8800:af12:96a6:b2f3:41ed 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
No nameserver has an AAAA record — an IPv6-only resolver can't reach this domain's DNS.
ns1.dns-redirect.com ✗ns2.dns-redirect.com ✗
no
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 403.
https://prop.systems/ via 2a05:d014:179b:c403:7bf9:16b6:e80e:e529 → 301https://expireddomains.com/domain/prop.systems?utm_source=redi via 2606:4700:20::681a:e7a → 403
works
 Which outside scripts, fonts, payments or chat prop.systems loads from have no IPv6.
 Load prop.systems over IPv6 from up to six other places — a second opinion.

What's keeping prop.systems from an A

  1. Nameservers without IPv6
    ns1.dns-redirect.com, ns2.dns-redirect.com 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

prop.systems  Has IPv6

A (IPv4)195.201.128.179
5.78.156.59
46.62.237.138
76.223.91.20
5.161.47.86
5.161.230.87
AAAA (IPv6)2a05:d014:179b:c403:7bf9:16b6:e80e:e529
2a05:d014:179b:c403:9f9f:9ecc:7f5f:4327
2a05:d018:1d22:801:d2f9:a416:8dd7:17c8
2a05:d014:179b:c403:7136:57f9:401a:e83d
2a05:d014:179b:c400:a327:40ee:24cc:6180
2a05:d014:179b:c403:bad8:4067:c728:cb1
2600:1f1c:6db:8800:af12:96a6:b2f3:41ed
2406:da1e:214:c901:85f9:e397:190d:62b7

www.prop.systems  Has IPv6

A (IPv4)76.223.91.20
195.201.128.179
5.161.47.86
46.62.237.138
5.78.156.59
5.161.230.87
AAAA (IPv6)2a05:d014:179b:c403:9f9f:9ecc:7f5f:4327
2a05:d014:179b:c403:7bf9:16b6:e80e:e529
2a05:d014:179b:c403:7136:57f9:401a:e83d
2a05:d014:179b:c400:a327:40ee:24cc:6180
2a05:d014:179b:c403:bad8:4067:c728:cb1
2a05:d018:1d22:801:d2f9:a416:8dd7:17c8
2406:da1e:214:c901:85f9:e397:190d:62b7
2600:1f1c:6db:8800:af12:96a6:b2f3:41ed

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/8wPgYySpm3 · How we measure

Checked 2026-11-10 15:47:15 UTC. Full DNS report: dns.pizza/domain/prop.systems · Age, certificate and blocklists: how.is/prop.systems · JSON: /api/v1/prop.systems