Yes — univeralduels.com has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 univeralduels.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3037::ac43:b183 answers · 443✓ 2606:4700:3031::6815:3b80 answers · 443	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 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. ashton.ns.cloudflare.com ✓jewel.ns.cloudflare.com ✓	yes

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

https://univeralduels.com/ via 2606:4700:3037::ac43:b183 → 302https://nameless-water-b29a.cloudflareaccess.com/cdn-cgi/access/login/univeralduels.com?kid=99bc017b30ecadb6150e289655d2c2fcdf043e1d65c3fa644d7df00f2350e346&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjkyM2M3YzkwMzI2YjIyZmM3MWMyZGMwMjQ1ZjNlMmMyZWFkYzdmMjgzMTQ0YjA3YTExNjJiODI4Yjc0MmJkN2IifQ.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.zRZZqQ79UBNlNf_Y0HaGwH_QMUtCDHgW3Hz1MOHJkcEJn0EplUSFJhyeQj2rJL2q6UeJtqZcJ5UJbZtltFHfyJAod2LTXV9VCIHyopNC3nTBbaugMLgM6O4YqVQ3li2s4IuaiUPGP-quVBXJx42H72_lq8fxU6r9QVWWNJobOM_1duFvZfSUlr-Ecc5vetiSPOhUc1KtoZhTohMCBdcD5DEbLgCItftSWUXjgur7ypr8CWbq4SYeVZHbUJ-dqgONueBUczn89RzYhvoVR1L0nUfr6Tyi7-24lrtnr2wl9DWfUikPZCLzMggTYfDcjmhIGRKDcbmLVqMG-Uzeglbuqg&redirect_url=%2F via 2606:4700:300a::6813:c21d → 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/univeralduels.com.svg)](https://aaaa.bot/univeralduels.com)

Check again

univeralduels.com Has IPv6

A (IPv4)	172.67.177.131 104.21.59.128
AAAA (IPv6)	2606:4700:3037::ac43:b183 2606:4700:3031::6815:3b80

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: univeralduels.com
Measured 2026-11-07 06:48:19 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.177.131, 104.21.59.128
AAAA (IPv6): 2606:4700:3037::ac43:b183, 2606:4700:3031::6815:3b80

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: univeralduels.com has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3037::ac43:b183: answers (TCP 443)
    2606:4700:3031::6815:3b80: answers (TCP 443)
- Mail servers (MX) have IPv6: No MX records, so mail goes to the domain's own address (implicit MX). It 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 after 1 redirect: HTTP 200.
    https://univeralduels.com/ via 2606:4700:3037::ac43:b183 -> HTTP 302, certificate: valid
    https://nameless-water-b29a.cloudflareaccess.com/cdn-cgi/access/login/univeralduels.com?kid=99bc017b30ecadb6150e289655d2c2fcdf043e1d65c3fa644d7df00f2350e346&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjkyM2M3YzkwMzI2YjIyZmM3MWMyZGMwMjQ1ZjNlMmMyZWFkYzdmMjgzMTQ0YjA3YTExNjJiODI4Yjc0MmJkN2IifQ.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.zRZZqQ79UBNlNf_Y0HaGwH_QMUtCDHgW3Hz1MOHJkcEJn0EplUSFJhyeQj2rJL2q6UeJtqZcJ5UJbZtltFHfyJAod2LTXV9VCIHyopNC3nTBbaugMLgM6O4YqVQ3li2s4IuaiUPGP-quVBXJx42H72_lq8fxU6r9QVWWNJobOM_1duFvZfSUlr-Ecc5vetiSPOhUc1KtoZhTohMCBdcD5DEbLgCItftSWUXjgur7ypr8CWbq4SYeVZHbUJ-dqgONueBUczn89RzYhvoVR1L0nUfr6Tyi7-24lrtnr2wl9DWfUikPZCLzMggTYfDcjmhIGRKDcbmLVqMG-Uzeglbuqg&redirect_url=%2F via 2606:4700:300a::6813:c21d -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/muLazum7m_

Permanent link: aaaa.bot/r/muLazum7m_ · How we measure

Checked 2026-11-07 06:48:19 UTC. Full DNS report: dns.pizza/domain/univeralduels.com · Age, certificate and blocklists: how.is/univeralduels.com · JSON: /api/v1/univeralduels.com