Yes — the-existential-risk-project.store has IPv6.

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

This is a saved measurement from 2026-11-09 15:57 UTC. Check the-existential-risk-project.store live now

IPv6 readiness

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

Website over IPv6 the-existential-risk-project.store has an AAAA record and answers on it. ✓ 2607:f1c0:100f:f000::200 answers · 443	yes
www over IPv6 www.the-existential-risk-project.store has an AAAA record and answers on it. ✓ 2607:f1c0:100f:f000::200 answers · 443	yes
Mail servers (MX) have IPv6 None of the mail servers has an AAAA record. mx00.ionos.com ✗mx01.ionos.com ✗	no
Nameservers have IPv6 4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. ns1114.ui-dns.biz ✓ns1055.ui-dns.de ✓ns1079.ui-dns.org ✓ns1061.ui-dns.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
the-existential-risk-project.store didn't complete an HTTPS request over IPv6 (ERR_SSL_TLSV1_ALERT_INTERNAL_ERROR).

https://the-existential-risk-project.store/ via 2607:f1c0:100f:f000::200 · ERR_SSL_TLSV1_ALERT_INTERNAL_ERROR

What's keeping the-existential-risk-project.store from an A

Mail servers without IPv6
mx00.ionos.com, mx01.ionos.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

the-existential-risk-project.store Has IPv6

A (IPv4)	74.208.236.38
AAAA (IPv6)	2607:f1c0:100f:f000::200

www.the-existential-risk-project.store Has IPv6

A (IPv4)	74.208.236.38
AAAA (IPv6)	2607:f1c0:100f:f000::200

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: the-existential-risk-project.store
Measured 2026-11-09 15:57:25 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    74.208.236.38
AAAA (IPv6): 2607:f1c0:100f:f000::200
www AAAA:    2607:f1c0:100f:f000::200

Readiness grade B: Works over IPv6, with one gap: its mail servers lack IPv6.
- Website over IPv6: the-existential-risk-project.store has an AAAA record and answers on it.
    2607:f1c0:100f:f000::200: answers (TCP 443)
- www over IPv6: www.the-existential-risk-project.store has an AAAA record and answers on it.
    2607:f1c0:100f:f000::200: answers (TCP 443)
- Mail servers (MX) have IPv6: None of the mail servers has an AAAA record.
- Nameservers have IPv6: 4 of 4 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): the-existential-risk-project.store didn't complete an HTTPS request over IPv6 (ERR_SSL_TLSV1_ALERT_INTERNAL_ERROR).
    https://the-existential-risk-project.store/ via 2607:f1c0:100f:f000::200 (ERR_SSL_TLSV1_ALERT_INTERNAL_ERROR)
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/PMeNu54JL_

Permanent link: aaaa.bot/r/PMeNu54JL_ · How we measure

Checked 2026-11-09 15:57:25 UTC. Full DNS report: dns.pizza/domain/the-existential-risk-project.store · Age, certificate and blocklists: how.is/the-existential-risk-project.store · JSON: /api/v1/the-existential-risk-project.store