Yes — ledger-technologies-app.com has IPv6.

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

Measured 2026-11-02 03:56 UTC. We reuse a result for up to a week, so we aren't testing the same site over and over. Check ledger-technologies-app.com now

IPv6 readiness

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

Website over IPv6 ledger-technologies-app.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3030::6815:2de answers · 443✓ 2606:4700:3033::ac43:81bf answers · 443	yes
www over IPv6 www.ledger-technologies-app.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3033::ac43:81bf answers · 443✓ 2606:4700:3030::6815:2de answers · 443	yes
Mail servers (MX) have IPv6 None of the mail servers has an AAAA record. mail.ledger-technologies-app.com ✗	no
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. carlos.ns.cloudflare.com ✓coraline.ns.cloudflare.com ✓	yes

First measured 2026-11-02; last confirmed 2026-11-02.

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

https://ledger-technologies-app.com/ via 2606:4700:3030::6815:2de → 200

works

What's keeping ledger-technologies-app.com from an A

Mail servers without IPv6
mail.ledger-technologies-app.com has no AAAA record, so mail from IPv6-only servers can't reach it directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.

Check again

ledger-technologies-app.com Has IPv6

A (IPv4)	104.21.2.222 172.67.129.191
AAAA (IPv6)	2606:4700:3030::6815:2de 2606:4700:3033::ac43:81bf

www.ledger-technologies-app.com Has IPv6

A (IPv4)	104.21.2.222 172.67.129.191
AAAA (IPv6)	2606:4700:3033::ac43:81bf 2606:4700:3030::6815:2de

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: ledger-technologies-app.com
Measured 2026-11-02 03:56:26 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.2.222, 172.67.129.191
AAAA (IPv6): 2606:4700:3030::6815:2de, 2606:4700:3033::ac43:81bf
www AAAA:    2606:4700:3033::ac43:81bf, 2606:4700:3030::6815:2de

Readiness grade B: Works over IPv6, with one gap: its mail servers lack IPv6.
- Website over IPv6: ledger-technologies-app.com has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3030::6815:2de: answers (TCP 443)
    2606:4700:3033::ac43:81bf: answers (TCP 443)
- www over IPv6: www.ledger-technologies-app.com has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3033::ac43:81bf: answers (TCP 443)
    2606:4700:3030::6815:2de: answers (TCP 443)
- Mail servers (MX) have IPv6: None of the mail servers has an AAAA record.
- Nameservers have IPv6: 2 of 2 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: HTTP 200.
    https://ledger-technologies-app.com/ via 2606:4700:3030::6815:2de -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/jxwFbRiBpM

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

Checked 2026-11-02 03:56:26 UTC. Full DNS report: dns.pizza/domain/ledger-technologies-app.com · JSON: /api/v1/ledger-technologies-app.com