Yes — doubleclick.net has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 doubleclick.net has 4 IPv6 addresses and answers on every one we tested. ✓ 2607:f8b0:4004:c09::8a answers · 443✓ 2607:f8b0:4004:c09::71 answers · 443✓ 2607:f8b0:4004:c09::64 answers · 443✓ 2607:f8b0:4004:c09::8b answers · 443	yes
www over IPv6 www.doubleclick.net has 4 IPv6 addresses and answers on every one we tested. ✓ 2607:f8b0:4004:c1b::8b answers · 443✓ 2607:f8b0:4004:c1b::64 answers · 443✓ 2607:f8b0:4004:c1b::8a answers · 443✓ 2607:f8b0:4004:c1b::71 answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. aspmx.l.google.com ✓alt2.aspmx.l.google.com ✓alt1.aspmx.l.google.com ✓alt3.aspmx.l.google.com ✓alt4.aspmx.l.google.com ✓	yes
Nameservers have IPv6 4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. ns2.google.com ✓ns4.google.com ✓ns1.google.com ✓ns3.google.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.

https://doubleclick.net/ via 2607:f8b0:4004:c09::8a → 301https://marketingplatform.google.com/about/enterprise/ via 2607:f8b0:4004:c2d::8b → 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/doubleclick.net.svg)](https://aaaa.bot/doubleclick.net)

Check again

doubleclick.net Has IPv6

A (IPv4)	172.253.62.113 172.253.62.102 172.253.62.101 172.253.62.100 172.253.62.139 172.253.62.138
AAAA (IPv6)	2607:f8b0:4004:c09::8a 2607:f8b0:4004:c09::71 2607:f8b0:4004:c09::64 2607:f8b0:4004:c09::8b

www.doubleclick.net Has IPv6

A (IPv4)	172.253.63.113 172.253.63.138 172.253.63.101 172.253.63.100 172.253.63.139 172.253.63.102
AAAA (IPv6)	2607:f8b0:4004:c1b::8b 2607:f8b0:4004:c1b::64 2607:f8b0:4004:c1b::8a 2607:f8b0:4004:c1b::71

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: doubleclick.net
Measured 2026-10-30 22:09:26 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.253.62.113, 172.253.62.102, 172.253.62.101, 172.253.62.100, 172.253.62.139, 172.253.62.138
AAAA (IPv6): 2607:f8b0:4004:c09::8a, 2607:f8b0:4004:c09::71, 2607:f8b0:4004:c09::64, 2607:f8b0:4004:c09::8b
www AAAA:    2607:f8b0:4004:c1b::8b, 2607:f8b0:4004:c1b::64, 2607:f8b0:4004:c1b::8a, 2607:f8b0:4004:c1b::71

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: doubleclick.net has 4 IPv6 addresses and answers on every one we tested.
    2607:f8b0:4004:c09::8a: answers (TCP 443)
    2607:f8b0:4004:c09::71: answers (TCP 443)
    2607:f8b0:4004:c09::64: answers (TCP 443)
    2607:f8b0:4004:c09::8b: answers (TCP 443)
- www over IPv6: www.doubleclick.net has 4 IPv6 addresses and answers on every one we tested.
    2607:f8b0:4004:c1b::8b: answers (TCP 443)
    2607:f8b0:4004:c1b::64: answers (TCP 443)
    2607:f8b0:4004:c1b::8a: answers (TCP 443)
    2607:f8b0:4004:c1b::71: answers (TCP 443)
- Mail servers (MX) have IPv6: Every mail server 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): Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.
    https://doubleclick.net/ via 2607:f8b0:4004:c09::8a -> HTTP 301, certificate: valid
    https://marketingplatform.google.com/about/enterprise/ via 2607:f8b0:4004:c2d::8b -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/TNWJU2Bcq8

Permanent link: aaaa.bot/r/TNWJU2Bcq8 · How we measure

Checked 2026-10-30 22:09:26 UTC. Full DNS report: dns.pizza/domain/doubleclick.net · JSON: /api/v1/doubleclick.net