Yes — arknights-cloud-play.xyz has IPv6.

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

This is a saved measurement from 2026-11-04 04:46 UTC. Check arknights-cloud-play.xyz live now

IPv6 readiness

The www address publishes IPv6 but doesn't answer on it — worse than having none.

Website over IPv6 arknights-cloud-play.xyz has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3036::ac43:bbfe answers · 443✓ 2606:4700:3030::6815:7c9 answers · 443	yes
www over IPv6 www.arknights-cloud-play.xyz's AAAA record points at an address that isn't on the public internet, so IPv6 visitors can't reach it. ✗ fd10:aec2:5dae:: not public	broken
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. eve.ns.cloudflare.com ✓yew.ns.cloudflare.com ✓	yes

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

https://arknights-cloud-play.xyz/ via 2606:4700:3036::ac43:bbfe → 200

works

What's keeping arknights-cloud-play.xyz from an A

Fix or remove the AAAA record for www.arknights-cloud-play.xyz
Something published an IPv6 address but nothing answers on it, so IPv6 visitors wait for a timeout first. Either make the server listen on IPv6 (and allow ports 443/80 through its firewall), or delete the AAAA record until it does.

Check again

arknights-cloud-play.xyz Has IPv6

A (IPv4)	104.21.7.201 172.67.187.254
AAAA (IPv6)	2606:4700:3036::ac43:bbfe 2606:4700:3030::6815:7c9

www.arknights-cloud-play.xyz IPv6 only

Alias of	d927286f-5cab-4daf-8ef5-fcc5948838c3.cfargotunnel.com
A (IPv4)	none
AAAA (IPv6)	fd10:aec2:5dae::

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: arknights-cloud-play.xyz
Measured 2026-11-04 04:46:01 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.7.201, 172.67.187.254
AAAA (IPv6): 2606:4700:3036::ac43:bbfe, 2606:4700:3030::6815:7c9
www AAAA:    fd10:aec2:5dae::

Readiness grade F: The www address publishes IPv6 but doesn't answer on it — worse than having none.
- Website over IPv6: arknights-cloud-play.xyz has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3036::ac43:bbfe: answers (TCP 443)
    2606:4700:3030::6815:7c9: answers (TCP 443)
- www over IPv6: www.arknights-cloud-play.xyz's AAAA record points at an address that isn't on the public internet, so IPv6 visitors can't reach it.
    fd10:aec2:5dae::: not public
- 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: HTTP 200.
    https://arknights-cloud-play.xyz/ via 2606:4700:3036::ac43:bbfe -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/YnJ4_8KZOm

Permanent link: aaaa.bot/r/YnJ4_8KZOm · How we measure

Checked 2026-11-04 04:46:01 UTC. Full DNS report: dns.pizza/domain/arknights-cloud-play.xyz · Age, certificate and blocklists: how.is/arknights-cloud-play.xyz · JSON: /api/v1/arknights-cloud-play.xyz