Yes — caixabankempresas.org has IPv6.

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

This is a saved measurement from 2026-11-02 11:28 UTC. Check caixabankempresas.org live now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 caixabankempresas.org has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3034::6815:48e1 answers · 443✓ 2606:4700:3032::ac43:bbd1 answers · 443	yes
www over IPv6 www.caixabankempresas.org has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3032::ac43:bbd1 answers · 443✓ 2606:4700:3034::6815:48e1 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. carmelo.ns.cloudflare.com ✓chan.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Redirects to app.caixabankempresas.org, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all.

https://caixabankempresas.org/ via 2606:4700:3034::6815:48e1 → 302https://app.caixabankempresas.org/?error=404&ref=true&t=20261102142806&ip=2605:4c40:40:f110::b04c&port=0 · redirects to app.caixabankempresas.org, which has no IPv6 address

problem

Nothing keeping you from an A

A redirect leads off IPv6
Redirects to app.caixabankempresas.org, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all. Give the redirect target IPv6 too, or redirect somewhere that has it.

Check again

caixabankempresas.org Has IPv6

A (IPv4)	172.67.187.209 104.21.72.225
AAAA (IPv6)	2606:4700:3034::6815:48e1 2606:4700:3032::ac43:bbd1

www.caixabankempresas.org Has IPv6

A (IPv4)	104.21.72.225 172.67.187.209
AAAA (IPv6)	2606:4700:3032::ac43:bbd1 2606:4700:3034::6815:48e1

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: caixabankempresas.org
Measured 2026-11-02 11:28:06 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.187.209, 104.21.72.225
AAAA (IPv6): 2606:4700:3034::6815:48e1, 2606:4700:3032::ac43:bbd1
www AAAA:    2606:4700:3032::ac43:bbd1, 2606:4700:3034::6815:48e1

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: caixabankempresas.org has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3034::6815:48e1: answers (TCP 443)
    2606:4700:3032::ac43:bbd1: answers (TCP 443)
- www over IPv6: www.caixabankempresas.org has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3032::ac43:bbd1: answers (TCP 443)
    2606:4700:3034::6815:48e1: 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): Redirects to app.caixabankempresas.org, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all.
    https://caixabankempresas.org/ via 2606:4700:3034::6815:48e1 -> HTTP 302, certificate: valid
    https://app.caixabankempresas.org/?error=404&ref=true&t=20261102142806&ip=2605:4c40:40:f110::b04c&port=0 (redirects to app.caixabankempresas.org, which has no IPv6 address)
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/hR3waq8hjw

Permanent link: aaaa.bot/r/hR3waq8hjw · How we measure

Checked 2026-11-02 11:28:06 UTC. Full DNS report: dns.pizza/domain/caixabankempresas.org · JSON: /api/v1/caixabankempresas.org