Yes — twinx-official.cfd has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 twinx-official.cfd has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3034::ac43:a4c9 answers · 443✓ 2606:4700:3033::6815:21a0 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. carol.ns.cloudflare.com ✓gerardo.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Redirects to platform-twinx.sbs, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all.

https://twinx-official.cfd/ via 2606:4700:3034::ac43:a4c9 → 302https://platform-twinx.sbs/reg?utm_source={{site_source_name}}&fbclid={fbclid}&utm_placement={{placement}}&campaign_id={{campaign.id}}&adset_id={{adset.id}}&ad_id={{ad.id}}&adset_name={{adset.name}}&ad_name={{ad.name}}&utm_campaign={{campaign.name}} · redirects to platform-twinx.sbs, which has no IPv6 address

problem

Nothing keeping you from an A

A redirect leads off IPv6
Redirects to platform-twinx.sbs, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all. Give the redirect target IPv6 too, or redirect somewhere that has it.

Check again

twinx-official.cfd Has IPv6

A (IPv4)	172.67.164.201 104.21.33.160
AAAA (IPv6)	2606:4700:3034::ac43:a4c9 2606:4700:3033::6815:21a0

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: twinx-official.cfd
Measured 2026-11-10 20:30:26 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.164.201, 104.21.33.160
AAAA (IPv6): 2606:4700:3034::ac43:a4c9, 2606:4700:3033::6815:21a0

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: twinx-official.cfd has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3034::ac43:a4c9: answers (TCP 443)
    2606:4700:3033::6815:21a0: 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): Redirects to platform-twinx.sbs, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all.
    https://twinx-official.cfd/ via 2606:4700:3034::ac43:a4c9 -> HTTP 302, certificate: valid
    https://platform-twinx.sbs/reg?utm_source={{site_source_name}}&fbclid={fbclid}&utm_placement={{placement}}&campaign_id={{campaign.id}}&adset_id={{adset.id}}&ad_id={{ad.id}}&adset_name={{adset.name}}&ad_name={{ad.name}}&utm_campaign={{campaign.name}} (redirects to platform-twinx.sbs, which has no IPv6 address)
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/62d2f9CLOe

Permanent link: aaaa.bot/r/62d2f9CLOe · How we measure

Checked 2026-11-10 20:30:26 UTC. Full DNS report: dns.pizza/domain/twinx-official.cfd · Age, certificate and blocklists: how.is/twinx-official.cfd · JSON: /api/v1/twinx-official.cfd