Yes — cookielaw.org has IPv6.

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

IPv6 readiness

Works over IPv6, with one gap: its mail servers lack IPv6.

Website over IPv6 cookielaw.org has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700::6812:572a answers · 443✓ 2606:4700::6812:562a answers · 443	yes
www over IPv6 www.cookielaw.org has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3035::ac43:c898 answers · 443✓ 2606:4700:3036::6815:2c8c answers · 443	yes
Mail servers (MX) have IPv6 None of the mail servers has an AAAA record. mxa-0085c101.gslb.pphosted.com ✗mxb-0085c101.gslb.pphosted.com ✗	no
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. bob.ns.cloudflare.com ✓sharon.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 2 redirects: HTTP 200.

https://cookielaw.org/ via 2606:4700::6812:572a → 301https://www.cookielaw.org/ via 2606:4700:3035::ac43:c898 → 301https://www.onetrust.com/products/cookie-consent/?redirect=true via 2a06:98c1:3103::ac40:92c3 → 200

works

What's keeping cookielaw.org from an A

Mail servers without IPv6
mxa-0085c101.gslb.pphosted.com, mxb-0085c101.gslb.pphosted.com have no AAAA record, so mail from IPv6-only servers can't reach them directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.

Check again

cookielaw.org Has IPv6

A (IPv4)	104.18.86.42 104.18.87.42
AAAA (IPv6)	2606:4700::6812:572a 2606:4700::6812:562a

www.cookielaw.org Has IPv6

A (IPv4)	104.21.44.140 172.67.200.152
AAAA (IPv6)	2606:4700:3035::ac43:c898 2606:4700:3036::6815:2c8c

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: cookielaw.org
Measured 2026-10-31 02:04:35 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.18.86.42, 104.18.87.42
AAAA (IPv6): 2606:4700::6812:572a, 2606:4700::6812:562a
www AAAA:    2606:4700:3035::ac43:c898, 2606:4700:3036::6815:2c8c

Readiness grade B: Works over IPv6, with one gap: its mail servers lack IPv6.
- Website over IPv6: cookielaw.org has 2 IPv6 addresses and answers on every one we tested.
    2606:4700::6812:572a: answers (TCP 443)
    2606:4700::6812:562a: answers (TCP 443)
- www over IPv6: www.cookielaw.org has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3035::ac43:c898: answers (TCP 443)
    2606:4700:3036::6815:2c8c: answers (TCP 443)
- Mail servers (MX) have IPv6: None of the mail servers 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): Loads over IPv6 with a valid certificate after 2 redirects: HTTP 200.
    https://cookielaw.org/ via 2606:4700::6812:572a -> HTTP 301, certificate: valid
    https://www.cookielaw.org/ via 2606:4700:3035::ac43:c898 -> HTTP 301, certificate: valid
    https://www.onetrust.com/products/cookie-consent/?redirect=true via 2a06:98c1:3103::ac40:92c3 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/LuJDyJq5jp

Permanent link: aaaa.bot/r/LuJDyJq5jp · How we measure

Checked 2026-10-31 02:04:35 UTC — one of the top 1,000 sites, re-checked weekly. Re-check now. Full DNS report: dns.pizza/domain/cookielaw.org · JSON: /api/v1/cookielaw.org