Yes — crispies.win has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 crispies.win has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3030::ac43:8d46 answers · 443✓ 2606:4700:3033::6815:36bd 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. kiki.ns.cloudflare.com ✓phil.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://crispies.win/ via 2606:4700:3030::ac43:8d46 → 302https://holy-dew-14f9.cloudflareaccess.com/cdn-cgi/access/login/crispies.win?kid=22ea97ca0d84d588e2c8e670bd5b09c976a5b6e18101b3296eb655d8d0362d49&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.Ut2LSb7vB04o-SE-TV9k1lHNzMSpQOfaS2m74bXBPS-sGTrfYaeFszmKJYUforc3uJG3RHwX0R_AnT1Rq1pPEw6MTZLYoGSF8jilkCZdJEnXYfJ8KOwLJEcCBSlUfNZ5Mvw09zf9x6MmxSWpCPqBbJP42YDB5e5WNgGBingGLiETMvebtVCqOmdjfnrEoC8UBgZFhGPDgp5Bw_55F60FAHUyF1JEuzNBNQ6zDudX5nnEeW7TIPpOvpAEff1LqAyvdqqcifq53tEIgcKL9ct-kBiE5ku5B4azjPqoEu5R1xA7lXjg3zTqi4Yy6jYFGsnQtPoiGAUt3v-px9DmcbUguw&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/crispies.win.svg)](https://aaaa.bot/crispies.win)

Check again

crispies.win Has IPv6

A (IPv4)	104.21.54.189 172.67.141.70
AAAA (IPv6)	2606:4700:3030::ac43:8d46 2606:4700:3033::6815:36bd

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: crispies.win
Measured 2026-10-31 12:05:32 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.54.189, 172.67.141.70
AAAA (IPv6): 2606:4700:3030::ac43:8d46, 2606:4700:3033::6815:36bd

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: crispies.win has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3030::ac43:8d46: answers (TCP 443)
    2606:4700:3033::6815:36bd: 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://crispies.win/ via 2606:4700:3030::ac43:8d46 -> HTTP 302, certificate: valid
    https://holy-dew-14f9.cloudflareaccess.com/cdn-cgi/access/login/crispies.win?kid=22ea97ca0d84d588e2c8e670bd5b09c976a5b6e18101b3296eb655d8d0362d49&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.Ut2LSb7vB04o-SE-TV9k1lHNzMSpQOfaS2m74bXBPS-sGTrfYaeFszmKJYUforc3uJG3RHwX0R_AnT1Rq1pPEw6MTZLYoGSF8jilkCZdJEnXYfJ8KOwLJEcCBSlUfNZ5Mvw09zf9x6MmxSWpCPqBbJP42YDB5e5WNgGBingGLiETMvebtVCqOmdjfnrEoC8UBgZFhGPDgp5Bw_55F60FAHUyF1JEuzNBNQ6zDudX5nnEeW7TIPpOvpAEff1LqAyvdqqcifq53tEIgcKL9ct-kBiE5ku5B4azjPqoEu5R1xA7lXjg3zTqi4Yy6jYFGsnQtPoiGAUt3v-px9DmcbUguw&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/ppqC1w-CdE

Permanent link: aaaa.bot/r/ppqC1w-CdE · How we measure

Checked 2026-10-31 12:05:32 UTC. Full DNS report: dns.pizza/domain/crispies.win · JSON: /api/v1/crispies.win