Yes — reverse.it has IPv6.

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

IPv6 readiness

Works over IPv6, with one gap: its mail servers lack IPv6.

Website over IPv6 reverse.it has 2 IPv6 addresses and answers on every one we tested. ✓ 2600:1408:c400:16::17d4:f80f answers · 443✓ 2600:1408:c400:16::17d4:f80a answers · 443	yes
www over IPv6 www.reverse.it has 2 IPv6 addresses and answers on every one we tested. ✓ 2600:1408:c400:23::17da:d8c6 answers · 443✓ 2600:1408:c400:23::17da:d8db answers · 443	yes
Mail servers (MX) have IPv6 None of the mail servers has an AAAA record. mxa-00206402.gslb.pphosted.com ✗mxb-00206402.gslb.pphosted.com ✗	no
Nameservers have IPv6 6 of 6 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. n2-a11.aka-ns.net ✓n2-a1.aka-ns.net ✓n2-a7.aka-ns.net ✓n2-a10.aka-ns.net ✓n2-a26.aka-ns.net ✓n2-a22.aka-ns.net ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.

https://reverse.it/ via 2600:1408:c400:16::17d4:f80f → 301https://hybrid-analysis.com/ via 2600:1408:c400:16::17d4:f81b → 200

works

What's keeping reverse.it from an A

Mail servers without IPv6
mxa-00206402.gslb.pphosted.com, mxb-00206402.gslb.pphosted.com have no AAAA record, so mail from IPv6-only servers can't reach them directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.

Check again

reverse.it Has IPv6

A (IPv4)	23.212.249.71 23.212.249.88
AAAA (IPv6)	2600:1408:c400:16::17d4:f80f 2600:1408:c400:16::17d4:f80a

www.reverse.it Has IPv6

Alias of	reverse.it.edgekey.net → e236225.dsca.akamaiedge.net
A (IPv4)	23.205.106.12 23.205.106.23
AAAA (IPv6)	2600:1408:c400:23::17da:d8c6 2600:1408:c400:23::17da:d8db

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

IPv6 measurement: reverse.it
Measured 2026-10-31 18:14:54 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    23.212.249.71, 23.212.249.88
AAAA (IPv6): 2600:1408:c400:16::17d4:f80f, 2600:1408:c400:16::17d4:f80a
www AAAA:    2600:1408:c400:23::17da:d8c6, 2600:1408:c400:23::17da:d8db

Readiness grade B: Works over IPv6, with one gap: its mail servers lack IPv6.
- Website over IPv6: reverse.it has 2 IPv6 addresses and answers on every one we tested.
    2600:1408:c400:16::17d4:f80f: answers (TCP 443)
    2600:1408:c400:16::17d4:f80a: answers (TCP 443)
- www over IPv6: www.reverse.it has 2 IPv6 addresses and answers on every one we tested.
    2600:1408:c400:23::17da:d8c6: answers (TCP 443)
    2600:1408:c400:23::17da:d8db: answers (TCP 443)
- Mail servers (MX) have IPv6: None of the mail servers has an AAAA record.
- Nameservers have IPv6: 6 of 6 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.

Reachability = a TCP connection opened on port 443 (or 80).

HTTPS over IPv6 (not graded): Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.
    https://reverse.it/ via 2600:1408:c400:16::17d4:f80f -> HTTP 301, certificate: valid
    https://hybrid-analysis.com/ via 2600:1408:c400:16::17d4:f81b -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/UbMeYDe_fT

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

Checked 2026-10-31 18:14:54 UTC. Full DNS report: dns.pizza/domain/reverse.it · JSON: /api/v1/reverse.it