Yes — billionsend.dev has IPv6.

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

This is a saved measurement from 2026-11-14 11:35 UTC. Check billionsend.dev live now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 billionsend.dev has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3034::6815:2c71 answers · 443✓ 2606:4700:3034::ac43:c70c answers · 443	yes
www over IPv6 www.billionsend.dev has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3034::6815:2c71 answers · 443✓ 2606:4700:3034::ac43:c70c 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. carioca.ns.cloudflare.com ✓chance.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://billionsend.dev/ via 2606:4700:3034::6815:2c71 → 302https://ikbear.cloudflareaccess.com/cdn-cgi/access/login/billionsend.dev?kid=d09a56db5aa01f945347167dbc04c1bac357a7f2ef067e0dbd269dad56f67c47&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijk3YTY3ZDY0NDgwZjI4YmFhYTRiOTJkNzBhYjA0YzViYmVmN2E4Njc4OGQ3MzM5Yzc4MGJjNzU2MTY4ODcxMTAifQ.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.VYnkYGTEWYJKQMM8J3_2pQm6EZTxTCQKIFs6KkyC1IcNntDQ7n7VwovsesPgfALFF1WV8UHMKEpx5Da2CNIXbmuCYQOjD-pNgpdX-o9ZjLaaVS_2Uy04W_SOmq3fzK2ZmjobET3g8FMC-r9t6KxdHEFNoZDkV5XFjDP8_VddlMp2AUu7V1JiwCJFZ5l0zALT5L4ZBTel58MY9OnVu6S6wq2-N3tS_B4LYB83dxWbrJFu-ksBN0wmva9rpeyrpAJ3UTmTPabhXtuGtAu3p1DPTJ9EEnm7Wcz-GOHCoWoQrQguCdFvbIUkNJmSb-_hyOIz3H_ZeXyvHDNodoND3M6_yA&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/billionsend.dev.svg)](https://aaaa.bot/billionsend.dev)

Check again

billionsend.dev Has IPv6

A (IPv4)	104.21.44.113 172.67.199.12
AAAA (IPv6)	2606:4700:3034::6815:2c71 2606:4700:3034::ac43:c70c

www.billionsend.dev Has IPv6

A (IPv4)	104.21.44.113 172.67.199.12
AAAA (IPv6)	2606:4700:3034::6815:2c71 2606:4700:3034::ac43:c70c

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: billionsend.dev
Measured 2026-11-14 11:35:19 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.44.113, 172.67.199.12
AAAA (IPv6): 2606:4700:3034::6815:2c71, 2606:4700:3034::ac43:c70c
www AAAA:    2606:4700:3034::6815:2c71, 2606:4700:3034::ac43:c70c

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: billionsend.dev has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3034::6815:2c71: answers (TCP 443)
    2606:4700:3034::ac43:c70c: answers (TCP 443)
- www over IPv6: www.billionsend.dev has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3034::6815:2c71: answers (TCP 443)
    2606:4700:3034::ac43:c70c: 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://billionsend.dev/ via 2606:4700:3034::6815:2c71 -> HTTP 302, certificate: valid
    https://ikbear.cloudflareaccess.com/cdn-cgi/access/login/billionsend.dev?kid=d09a56db5aa01f945347167dbc04c1bac357a7f2ef067e0dbd269dad56f67c47&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijk3YTY3ZDY0NDgwZjI4YmFhYTRiOTJkNzBhYjA0YzViYmVmN2E4Njc4OGQ3MzM5Yzc4MGJjNzU2MTY4ODcxMTAifQ.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.VYnkYGTEWYJKQMM8J3_2pQm6EZTxTCQKIFs6KkyC1IcNntDQ7n7VwovsesPgfALFF1WV8UHMKEpx5Da2CNIXbmuCYQOjD-pNgpdX-o9ZjLaaVS_2Uy04W_SOmq3fzK2ZmjobET3g8FMC-r9t6KxdHEFNoZDkV5XFjDP8_VddlMp2AUu7V1JiwCJFZ5l0zALT5L4ZBTel58MY9OnVu6S6wq2-N3tS_B4LYB83dxWbrJFu-ksBN0wmva9rpeyrpAJ3UTmTPabhXtuGtAu3p1DPTJ9EEnm7Wcz-GOHCoWoQrQguCdFvbIUkNJmSb-_hyOIz3H_ZeXyvHDNodoND3M6_yA&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/psyFBNMm0Z

Permanent link: aaaa.bot/r/psyFBNMm0Z · How we measure

Checked 2026-11-14 11:35:19 UTC. Full DNS report: dns.pizza/domain/billionsend.dev · Age, certificate and blocklists: how.is/billionsend.dev · JSON: /api/v1/billionsend.dev