Yes — rduops.app has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 rduops.app has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3037::6815:209b answers · 443✓ 2606:4700:3033::ac43:dfe8 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. derek.ns.cloudflare.com ✓stella.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://rduops.app/ via 2606:4700:3037::6815:209b → 302https://centurionholdingsgroup.cloudflareaccess.com/cdn-cgi/access/login/rduops.app?kid=0e874eafb5c45349e67ce4fa1c74b0e6cea9e081a470cb66d03eed2761412544&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjcyYmMzNTUyNzBkMzcyMGMzNzA2ZDFkYzVmN2M5MGVmYmE4MTBmNzNmOThlOTk4NWEzMTMzYTM0NDNmZjM1NGEifQ.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.Ye8dyAzvhLKKciP0rHdnqTY1Q95g_0eMGxvvqvqFsl5leCeIU6tG35vay-DuOfijmS6QVVineJLDHYg9fk0rhOAnL_e4b6ALJhglT7aMAhbixgj7UwebHgxfMxkutfUK30Zl6GiIzBd_d1Yg9PgJKOntyEr2PMoqu3s3kzNrLkFL_XFJS47qQT_yQmjMwhrQoj9RBt9OEz_N8-ah8g5TvxfhZWPniiAKbC4uuDGYDcYNePf4aEsMJOq6TapZs8KLVZsyszNnZJV5rmPQZFuqbgf6qV59rlWl2yjIV1JbHbCdQ-g2OT0saD48klTzopgCKayq33nnctwH_wnINsiqyQ&redirect_url=%2F via 2606:4700:300a::6813:c31d → 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/rduops.app.svg)](https://aaaa.bot/rduops.app)

Check again

rduops.app Has IPv6

A (IPv4)	172.67.223.232 104.21.32.155
AAAA (IPv6)	2606:4700:3037::6815:209b 2606:4700:3033::ac43:dfe8

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: rduops.app
Measured 2026-11-06 02:39:13 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.223.232, 104.21.32.155
AAAA (IPv6): 2606:4700:3037::6815:209b, 2606:4700:3033::ac43:dfe8

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: rduops.app has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3037::6815:209b: answers (TCP 443)
    2606:4700:3033::ac43:dfe8: 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://rduops.app/ via 2606:4700:3037::6815:209b -> HTTP 302, certificate: valid
    https://centurionholdingsgroup.cloudflareaccess.com/cdn-cgi/access/login/rduops.app?kid=0e874eafb5c45349e67ce4fa1c74b0e6cea9e081a470cb66d03eed2761412544&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjcyYmMzNTUyNzBkMzcyMGMzNzA2ZDFkYzVmN2M5MGVmYmE4MTBmNzNmOThlOTk4NWEzMTMzYTM0NDNmZjM1NGEifQ.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.Ye8dyAzvhLKKciP0rHdnqTY1Q95g_0eMGxvvqvqFsl5leCeIU6tG35vay-DuOfijmS6QVVineJLDHYg9fk0rhOAnL_e4b6ALJhglT7aMAhbixgj7UwebHgxfMxkutfUK30Zl6GiIzBd_d1Yg9PgJKOntyEr2PMoqu3s3kzNrLkFL_XFJS47qQT_yQmjMwhrQoj9RBt9OEz_N8-ah8g5TvxfhZWPniiAKbC4uuDGYDcYNePf4aEsMJOq6TapZs8KLVZsyszNnZJV5rmPQZFuqbgf6qV59rlWl2yjIV1JbHbCdQ-g2OT0saD48klTzopgCKayq33nnctwH_wnINsiqyQ&redirect_url=%2F via 2606:4700:300a::6813:c31d -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/r4d88gMlr3

Permanent link: aaaa.bot/r/r4d88gMlr3 · How we measure

Checked 2026-11-06 02:39:13 UTC. Full DNS report: dns.pizza/domain/rduops.app · Age, certificate and blocklists: how.is/rduops.app · JSON: /api/v1/rduops.app