Yes — bend.systems has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 bend.systems has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3031::ac43:d921 answers · 443✓ 2606:4700:3033::6815:183b 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. ken.ns.cloudflare.com ✓kristina.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://bend.systems/ via 2606:4700:3031::ac43:d921 → 302https://hark-agi.cloudflareaccess.com/cdn-cgi/access/login/bend.systems?kid=a47acc66c2014f69a8630b05b593dae6dccfcd5f6f4c1bebecb0a30b564bd099&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjJlYzk0NTA5YmM4ZWJmYjBkMGEwYWFkMGZiNDE5ZDEzMzJiNDk1ZDhjYTA1ZjAzODNkNjExYmY0ZTA3MzRhMTIifQ.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.fNnsZEdaMnGhMFKpqyFcD8rURs29AMQdMMNWZS7ViyLZwQD9TQZzflAu25ctgkV4P4smIRUSpUrDUJFD2qXV8RGx9zrvy9rRoe2pQRGR_sbyzdiW3xDwPjXd7pW6q905rp4_scZVfCNga0D27OmQbjH41dCPNy3j7JHvd6Dz3TybzRKbdcPsNOhH-4EpQ5xCwB-h_aBzAipsMRr8R2-CyQFELri7lZ476tlgnFEoViZ0OwWeB9E2ZIMULsF--Q2TIcOG45U9shOXqrItfBt-esIBSVqiMYmf5AJiBcCDCnUJ7QRfAlS5nMdQRPvYBkbDd_8k3ENfUxA19IDV69dcsg&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/bend.systems.svg)](https://aaaa.bot/bend.systems)

Check again

bend.systems Has IPv6

A (IPv4)	172.67.217.33 104.21.24.59
AAAA (IPv6)	2606:4700:3031::ac43:d921 2606:4700:3033::6815:183b

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: bend.systems
Measured 2026-11-01 07:13:45 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.217.33, 104.21.24.59
AAAA (IPv6): 2606:4700:3031::ac43:d921, 2606:4700:3033::6815:183b

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: bend.systems has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3031::ac43:d921: answers (TCP 443)
    2606:4700:3033::6815:183b: 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://bend.systems/ via 2606:4700:3031::ac43:d921 -> HTTP 302, certificate: valid
    https://hark-agi.cloudflareaccess.com/cdn-cgi/access/login/bend.systems?kid=a47acc66c2014f69a8630b05b593dae6dccfcd5f6f4c1bebecb0a30b564bd099&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjJlYzk0NTA5YmM4ZWJmYjBkMGEwYWFkMGZiNDE5ZDEzMzJiNDk1ZDhjYTA1ZjAzODNkNjExYmY0ZTA3MzRhMTIifQ.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.fNnsZEdaMnGhMFKpqyFcD8rURs29AMQdMMNWZS7ViyLZwQD9TQZzflAu25ctgkV4P4smIRUSpUrDUJFD2qXV8RGx9zrvy9rRoe2pQRGR_sbyzdiW3xDwPjXd7pW6q905rp4_scZVfCNga0D27OmQbjH41dCPNy3j7JHvd6Dz3TybzRKbdcPsNOhH-4EpQ5xCwB-h_aBzAipsMRr8R2-CyQFELri7lZ476tlgnFEoViZ0OwWeB9E2ZIMULsF--Q2TIcOG45U9shOXqrItfBt-esIBSVqiMYmf5AJiBcCDCnUJ7QRfAlS5nMdQRPvYBkbDd_8k3ENfUxA19IDV69dcsg&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/2ejOwEHF58

Permanent link: aaaa.bot/r/2ejOwEHF58 · How we measure

Checked 2026-11-01 07:13:45 UTC. Full DNS report: dns.pizza/domain/bend.systems · JSON: /api/v1/bend.systems