Yes — mail.klarna.com has IPv6.

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

This is a saved measurement from 2026-11-02 16:07 UTC. Check mail.klarna.com live now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 mail.klarna.com has an AAAA record and answers on it. ✓ 2607:f8b0:4004:c29::79 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 6 of 6 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. a1-74.akam.net ✓a5-64.akam.net ✓edns7.ultradns.com ✓edns7.ultradns.org ✓a12-65.akam.net ✓a20-66.akam.net ✓	yes

HTTPS over IPv6 · not part of the grade yet
mail.klarna.com didn't complete an HTTPS request over IPv6 (connection closed before a response).

https://mail.klarna.com/ via 2607:f8b0:4004:c29::79 · connection closed before a response

Nothing keeping you from an A

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

Check again

mail.klarna.com Has IPv6

Alias of	ghs.google.com
A (IPv4)	172.253.63.121
AAAA (IPv6)	2607:f8b0:4004:c29::79

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: mail.klarna.com
Measured 2026-11-02 16:07:25 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.253.63.121
AAAA (IPv6): 2607:f8b0:4004:c29::79

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: mail.klarna.com has an AAAA record and answers on it.
    2607:f8b0:4004:c29::79: 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: 6 of 6 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): mail.klarna.com didn't complete an HTTPS request over IPv6 (connection closed before a response).
    https://mail.klarna.com/ via 2607:f8b0:4004:c29::79 (connection closed before a response)
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/WnMp5CLIdv

Permanent link: aaaa.bot/r/WnMp5CLIdv · How we measure

Checked 2026-11-02 16:07:25 UTC. Full DNS report: dns.pizza/domain/mail.klarna.com · JSON: /api/v1/mail.klarna.com