Yes — taskbank.app has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 taskbank.app has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3035::ac43:dab5 answers · 443✓ 2606:4700:3037::6815:3316 answers · 443	yes
www over IPv6 www.taskbank.app has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3035::ac43:dab5 answers · 443✓ 2606:4700:3037::6815:3316 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. anita.ns.cloudflare.com ✓keenan.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://taskbank.app/ via 2606:4700:3035::ac43:dab5 → 302https://falling-pond-70a4.cloudflareaccess.com/cdn-cgi/access/login/taskbank.app?kid=77e9c1874c1cdc86c47d65a3165f277705d3e8380cce99654abbbf84a93144a7&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.RgfsOJ_K-8LFNJVTKM5wAW1okQ2PK6OHbwpQ8GF8zzxyxGCfMr4L-66GKLxuVQfbtMZ-fx07E6q7zAZmNT4dmU5De7FX9hAj6M7TB1Vjcu-KxSL9FGDDtu_8bf1hthQZdVSgF-u8AP9C0QdQrS73rCKLOxjGLJTXEudBD5OS33RaW3aTzouXjE2sLeQV_PUEUcIvFeg-PygJ7PmNz5sKrWjf3lgLVB8avpCfuG9i-ydbZipCWn89KDYhEcprlyn8mi4U7nbkwsT3C1IVC5U-Wt53eoMfAcgjVcNmqA8OeYpC4CSKHr_XPHpll0p4p6Q-cdl_BtPCTucYrcQsr9peyQ&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/taskbank.app.svg)](https://aaaa.bot/taskbank.app)

Check again

taskbank.app Has IPv6

A (IPv4)	104.21.51.22 172.67.218.181
AAAA (IPv6)	2606:4700:3035::ac43:dab5 2606:4700:3037::6815:3316

www.taskbank.app Has IPv6

A (IPv4)	104.21.51.22 172.67.218.181
AAAA (IPv6)	2606:4700:3035::ac43:dab5 2606:4700:3037::6815:3316

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: taskbank.app
Measured 2026-11-11 11:55:57 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.51.22, 172.67.218.181
AAAA (IPv6): 2606:4700:3035::ac43:dab5, 2606:4700:3037::6815:3316
www AAAA:    2606:4700:3035::ac43:dab5, 2606:4700:3037::6815:3316

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: taskbank.app has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3035::ac43:dab5: answers (TCP 443)
    2606:4700:3037::6815:3316: answers (TCP 443)
- www over IPv6: www.taskbank.app has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3035::ac43:dab5: answers (TCP 443)
    2606:4700:3037::6815:3316: 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://taskbank.app/ via 2606:4700:3035::ac43:dab5 -> HTTP 302, certificate: valid
    https://falling-pond-70a4.cloudflareaccess.com/cdn-cgi/access/login/taskbank.app?kid=77e9c1874c1cdc86c47d65a3165f277705d3e8380cce99654abbbf84a93144a7&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.RgfsOJ_K-8LFNJVTKM5wAW1okQ2PK6OHbwpQ8GF8zzxyxGCfMr4L-66GKLxuVQfbtMZ-fx07E6q7zAZmNT4dmU5De7FX9hAj6M7TB1Vjcu-KxSL9FGDDtu_8bf1hthQZdVSgF-u8AP9C0QdQrS73rCKLOxjGLJTXEudBD5OS33RaW3aTzouXjE2sLeQV_PUEUcIvFeg-PygJ7PmNz5sKrWjf3lgLVB8avpCfuG9i-ydbZipCWn89KDYhEcprlyn8mi4U7nbkwsT3C1IVC5U-Wt53eoMfAcgjVcNmqA8OeYpC4CSKHr_XPHpll0p4p6Q-cdl_BtPCTucYrcQsr9peyQ&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/MdTFf5euOf

Permanent link: aaaa.bot/r/MdTFf5euOf · How we measure

Checked 2026-11-11 11:55:57 UTC. Full DNS report: dns.pizza/domain/taskbank.app · Age, certificate and blocklists: how.is/taskbank.app · JSON: /api/v1/taskbank.app