Yes — pengwobble.app has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 pengwobble.app has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3034::6815:38d8 answers · 443✓ 2606:4700:3037::ac43:9c09 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. hera.ns.cloudflare.com ✓piers.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://pengwobble.app/ via 2606:4700:3034::6815:38d8 → 302https://empty-darkness-b8dd.cloudflareaccess.com/cdn-cgi/access/login/pengwobble.app?kid=4e4088638aba7e713d64ce9fc8c2615020554ba4c6e794067841c0b2da8b7ccd&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.SYz21f1d4HABbzRWIRIhjAf-U-jirUtAqdfWCjXhbUP_gLoGuqfmm1MgKXTX4JFmYtbYpxkNBpK4fuLnMzOs-P5xtxVmAQ3R1kMhI_xbm23cTRpLAhic6gxhMdslKqoTvAjDDHRqcB5Xi8f_bDtP_1JWAE8zNod_-2N60EvHopBYYVx5kGMEOnYY30oEyfPSONa_HswWNfygeEOlcuW0gH3kvScBPnMazbldvBTI0jyB1m0JDyF78OsaOhbv8FHRfJU8hrD2qPkdQwTWgeglfbd9zDAQ7D5f6fXid79b0XBZuMKe1WDay9rSduMSucbk8r-l92k5SrGeAOApoCkFKQ&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/pengwobble.app.svg)](https://aaaa.bot/pengwobble.app)

Check again

pengwobble.app Has IPv6

A (IPv4)	104.21.56.216 172.67.156.9
AAAA (IPv6)	2606:4700:3034::6815:38d8 2606:4700:3037::ac43:9c09

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: pengwobble.app
Measured 2026-11-11 10:38:12 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.56.216, 172.67.156.9
AAAA (IPv6): 2606:4700:3034::6815:38d8, 2606:4700:3037::ac43:9c09

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: pengwobble.app has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3034::6815:38d8: answers (TCP 443)
    2606:4700:3037::ac43:9c09: 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://pengwobble.app/ via 2606:4700:3034::6815:38d8 -> HTTP 302, certificate: valid
    https://empty-darkness-b8dd.cloudflareaccess.com/cdn-cgi/access/login/pengwobble.app?kid=4e4088638aba7e713d64ce9fc8c2615020554ba4c6e794067841c0b2da8b7ccd&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.SYz21f1d4HABbzRWIRIhjAf-U-jirUtAqdfWCjXhbUP_gLoGuqfmm1MgKXTX4JFmYtbYpxkNBpK4fuLnMzOs-P5xtxVmAQ3R1kMhI_xbm23cTRpLAhic6gxhMdslKqoTvAjDDHRqcB5Xi8f_bDtP_1JWAE8zNod_-2N60EvHopBYYVx5kGMEOnYY30oEyfPSONa_HswWNfygeEOlcuW0gH3kvScBPnMazbldvBTI0jyB1m0JDyF78OsaOhbv8FHRfJU8hrD2qPkdQwTWgeglfbd9zDAQ7D5f6fXid79b0XBZuMKe1WDay9rSduMSucbk8r-l92k5SrGeAOApoCkFKQ&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/CFoUVOzvdt

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

Checked 2026-11-11 10:38:12 UTC. Full DNS report: dns.pizza/domain/pengwobble.app · Age, certificate and blocklists: how.is/pengwobble.app · JSON: /api/v1/pengwobble.app