Yes — assets.cookiebot.com has IPv6.

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

IPv6 readiness

Works over IPv6, with one gap: www doesn't fully work over IPv6.

Website over IPv6 assets.cookiebot.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2600:1408:5400:e83::f09 answers · 443✓ 2600:1408:5400:e97::f09 answers · 443	yes
www over IPv6 www.assets.cookiebot.com has no AAAA record.	no
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. kiki.ns.cloudflare.com ✓keanu.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Answered over IPv6 with a server error (HTTP 503) — can't tell whether that's specific to IPv6.

https://assets.cookiebot.com/ via 2600:1408:5400:e83::f09 → 503

What's keeping assets.cookiebot.com from an A

Add IPv6 for www.assets.cookiebot.com
www.assets.cookiebot.com has no AAAA record. Get www's IPv6 address from whoever hosts www and add it as an AAAA record. If the same server already serves both names (and its certificate covers www), you can reuse assets.cookiebot.com's AAAA record(s) for www. How to add an AAAA record

Check again

assets.cookiebot.com Has IPv6

Alias of	assets.cookiebot.com.edgekey.net → e3849.dsca.akamaiedge.net
A (IPv4)	104.94.117.152
AAAA (IPv6)	2600:1408:5400:e83::f09 2600:1408:5400:e97::f09

www.assets.cookiebot.com No address

A (IPv4)	none
AAAA (IPv6)	none

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: assets.cookiebot.com
Measured 2026-11-02 19:47:32 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.94.117.152
AAAA (IPv6): 2600:1408:5400:e83::f09, 2600:1408:5400:e97::f09
www AAAA:    none

Readiness grade B: Works over IPv6, with one gap: www doesn't fully work over IPv6.
- Website over IPv6: assets.cookiebot.com has 2 IPv6 addresses and answers on every one we tested.
    2600:1408:5400:e83::f09: answers (TCP 443)
    2600:1408:5400:e97::f09: answers (TCP 443)
- www over IPv6: www.assets.cookiebot.com has no AAAA record.
- 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): Answered over IPv6 with a server error (HTTP 503) — can't tell whether that's specific to IPv6.
    https://assets.cookiebot.com/ via 2600:1408:5400:e83::f09 -> HTTP 503, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/FjJeQjf2O7

Permanent link: aaaa.bot/r/FjJeQjf2O7 · How we measure

Checked 2026-11-02 19:47:32 UTC. Full DNS report: dns.pizza/domain/assets.cookiebot.com · Age, certificate and blocklists: how.is/assets.cookiebot.com · JSON: /api/v1/assets.cookiebot.com