Yes — dukanza.app has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 dukanza.app has 2 IPv6 addresses and answers on every one we tested. ✓ 2a02:4780:84:e508:f175:93df:2c8f:f8ab answers · 443✓ 2a02:4780:84:b961:c74a:9302:a6f3:ce56 answers · 443	yes
www over IPv6 www.dukanza.app has 2 IPv6 addresses and answers on every one we tested. ✓ 2a02:4780:4b:ec2f:2cdc:efa8:c299:f4aa answers · 443✓ 2a02:4780:4a:aa7c:9ff3:2723:e54f:8eb answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. mx2.hostinger.com ✓mx1.hostinger.com ✓	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. artemis.dns-parking.com ✓hermes.dns-parking.com ✓	yes

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

https://dukanza.app/ via 2a02:4780:84:e508:f175:93df:2c8f:f8ab → 200

works

Nothing keeping you from an A

Nothing to fix
Show it off: add the badge to your README.
[![IPv6](https://aaaa.bot/badge/dukanza.app.svg)](https://aaaa.bot/dukanza.app)

Check again

dukanza.app Has IPv6

A (IPv4)	2.57.91.50 84.32.84.157
AAAA (IPv6)	2a02:4780:84:e508:f175:93df:2c8f:f8ab 2a02:4780:84:b961:c74a:9302:a6f3:ce56

www.dukanza.app Has IPv6

Alias of	www.dukanza.app.cdn.hstgr.net
A (IPv4)	88.223.87.153 147.79.79.218
AAAA (IPv6)	2a02:4780:4b:ec2f:2cdc:efa8:c299:f4aa 2a02:4780:4a:aa7c:9ff3:2723:e54f:8eb

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: dukanza.app
Measured 2026-10-31 23:17:58 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    2.57.91.50, 84.32.84.157
AAAA (IPv6): 2a02:4780:84:e508:f175:93df:2c8f:f8ab, 2a02:4780:84:b961:c74a:9302:a6f3:ce56
www AAAA:    2a02:4780:4b:ec2f:2cdc:efa8:c299:f4aa, 2a02:4780:4a:aa7c:9ff3:2723:e54f:8eb

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: dukanza.app has 2 IPv6 addresses and answers on every one we tested.
    2a02:4780:84:e508:f175:93df:2c8f:f8ab: answers (TCP 443)
    2a02:4780:84:b961:c74a:9302:a6f3:ce56: answers (TCP 443)
- www over IPv6: www.dukanza.app has 2 IPv6 addresses and answers on every one we tested.
    2a02:4780:4b:ec2f:2cdc:efa8:c299:f4aa: answers (TCP 443)
    2a02:4780:4a:aa7c:9ff3:2723:e54f:8eb: answers (TCP 443)
- Mail servers (MX) have IPv6: Every mail server 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://dukanza.app/ via 2a02:4780:84:e508:f175:93df:2c8f:f8ab -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/eonMoXrdws

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

Checked 2026-10-31 23:17:58 UTC. Full DNS report: dns.pizza/domain/dukanza.app · JSON: /api/v1/dukanza.app