Yes — suitsait-staging.dev has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 suitsait-staging.dev has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3031::6815:50cb answers · 443✓ 2606:4700:3034::ac43:99c8 answers · 443	yes
www over IPv6 www.suitsait-staging.dev has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3031::6815:50cb answers · 443✓ 2606:4700:3034::ac43:99c8 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. koa.ns.cloudflare.com ✓phoenix.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://suitsait-staging.dev/ via 2606:4700:3031::6815:50cb → 302https://suitsait.cloudflareaccess.com/cdn-cgi/access/login/suitsait-staging.dev?kid=d158c82b4948777fdff9e2c1dfa106a4b6800c3db794fa92b8c273e21077827b&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.GkGALbEvPtFCndhKLaq_T-p66091v9SeSFtKIR9NHQyUfCzvuI_xYTSCJIwK1XCv506HRQJyR03DfHj9PiS5FzEluFEZJM82gNajk1G2614jDXa__-SqwhnA_bLBsUm5aogFRSu_x-PZ5OqRdr_CkGyNUChyQORZONSWGo0ON7SDcKw7spGqPy2im9xla7N9eMqiMcJ2MqcAoNnSo-sr6QPrHFPGR94mYbV85234Cm6ZM6XNGzbNvklr6Tz9RNOAjyNooaZ1ubGZNpFFsd1Pazgj2NafAAGxuzhWhJFdznON9EX6fbX-lV2LIIP0kM8358XGl-X49QDa5gDn-ViY2g&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/suitsait-staging.dev.svg)](https://aaaa.bot/suitsait-staging.dev)

Check again

suitsait-staging.dev Has IPv6

A (IPv4)	104.21.80.203 172.67.153.200
AAAA (IPv6)	2606:4700:3031::6815:50cb 2606:4700:3034::ac43:99c8

www.suitsait-staging.dev Has IPv6

A (IPv4)	172.67.153.200 104.21.80.203
AAAA (IPv6)	2606:4700:3031::6815:50cb 2606:4700:3034::ac43:99c8

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: suitsait-staging.dev
Measured 2026-11-10 11:13:44 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.80.203, 172.67.153.200
AAAA (IPv6): 2606:4700:3031::6815:50cb, 2606:4700:3034::ac43:99c8
www AAAA:    2606:4700:3031::6815:50cb, 2606:4700:3034::ac43:99c8

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: suitsait-staging.dev has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3031::6815:50cb: answers (TCP 443)
    2606:4700:3034::ac43:99c8: answers (TCP 443)
- www over IPv6: www.suitsait-staging.dev has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3031::6815:50cb: answers (TCP 443)
    2606:4700:3034::ac43:99c8: 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://suitsait-staging.dev/ via 2606:4700:3031::6815:50cb -> HTTP 302, certificate: valid
    https://suitsait.cloudflareaccess.com/cdn-cgi/access/login/suitsait-staging.dev?kid=d158c82b4948777fdff9e2c1dfa106a4b6800c3db794fa92b8c273e21077827b&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.GkGALbEvPtFCndhKLaq_T-p66091v9SeSFtKIR9NHQyUfCzvuI_xYTSCJIwK1XCv506HRQJyR03DfHj9PiS5FzEluFEZJM82gNajk1G2614jDXa__-SqwhnA_bLBsUm5aogFRSu_x-PZ5OqRdr_CkGyNUChyQORZONSWGo0ON7SDcKw7spGqPy2im9xla7N9eMqiMcJ2MqcAoNnSo-sr6QPrHFPGR94mYbV85234Cm6ZM6XNGzbNvklr6Tz9RNOAjyNooaZ1ubGZNpFFsd1Pazgj2NafAAGxuzhWhJFdznON9EX6fbX-lV2LIIP0kM8358XGl-X49QDa5gDn-ViY2g&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/LrtLMAw4Cj

Permanent link: aaaa.bot/r/LrtLMAw4Cj · How we measure

Checked 2026-11-10 11:13:44 UTC. Full DNS report: dns.pizza/domain/suitsait-staging.dev · Age, certificate and blocklists: how.is/suitsait-staging.dev · JSON: /api/v1/suitsait-staging.dev