Yes — nicolebot.app has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 nicolebot.app has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700::6812:137b answers · 443✓ 2606:4700::6812:127b answers · 443	yes
www over IPv6 www.nicolebot.app has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700::6812:127b answers · 443✓ 2606:4700::6812:137b 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 4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. ns1psw.name.com ✓ns2jrt.name.com ✓ns3dgj.name.com ✓ns4htz.name.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Redirects in a loop.

https://nicolebot.app/ via 2606:4700::6812:137b → 302https://nicolebot.app/app via 2606:4700::6812:137b → 302https://nicolebot.app/login?returnTo=%2Fapp via 2606:4700::6812:137b → 302

Nothing keeping you from an A

Nothing to fix
Show it off: add the badge to your README.
[![IPv6](https://aaaa.bot/badge/nicolebot.app.svg)](https://aaaa.bot/nicolebot.app)

Check again

nicolebot.app Has IPv6

A (IPv4)	104.18.19.123 104.18.18.123
AAAA (IPv6)	2606:4700::6812:137b 2606:4700::6812:127b

www.nicolebot.app Has IPv6

Alias of	apps.hellostencil.com
A (IPv4)	104.18.19.123 104.18.18.123
AAAA (IPv6)	2606:4700::6812:127b 2606:4700::6812:137b

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: nicolebot.app
Measured 2026-11-11 19:08:04 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.18.19.123, 104.18.18.123
AAAA (IPv6): 2606:4700::6812:137b, 2606:4700::6812:127b
www AAAA:    2606:4700::6812:127b, 2606:4700::6812:137b

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: nicolebot.app has 2 IPv6 addresses and answers on every one we tested.
    2606:4700::6812:137b: answers (TCP 443)
    2606:4700::6812:127b: answers (TCP 443)
- www over IPv6: www.nicolebot.app has 2 IPv6 addresses and answers on every one we tested.
    2606:4700::6812:127b: answers (TCP 443)
    2606:4700::6812:137b: 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: 4 of 4 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): Redirects in a loop.
    https://nicolebot.app/ via 2606:4700::6812:137b -> HTTP 302, certificate: valid
    https://nicolebot.app/app via 2606:4700::6812:137b -> HTTP 302, certificate: valid
    https://nicolebot.app/login?returnTo=%2Fapp via 2606:4700::6812:137b -> HTTP 302, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/s64gFeoz6R

Permanent link: aaaa.bot/r/s64gFeoz6R · How we measure

Checked 2026-11-11 19:08:04 UTC. Full DNS report: dns.pizza/domain/nicolebot.app · Age, certificate and blocklists: how.is/nicolebot.app · JSON: /api/v1/nicolebot.app