Yes — crowdstrike.com has IPv6.

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

C
IPv6 readiness
Works over IPv6, with gaps: its mail servers lack IPv6; its nameservers lack IPv6.
Website over IPv6
crowdstrike.com has 2 IPv6 addresses and answers on every one we tested.
✓ 2600:1408:c400:16::17d4:f804 answers · 443✓ 2600:1408:c400:16::17d4:f810 answers · 443
yes
www over IPv6
www.crowdstrike.com has 2 IPv6 addresses and answers on every one we tested.
✓ 2600:1408:c400:16::17d4:f810 answers · 443✓ 2600:1408:c400:16::17d4:f804 answers · 443
yes
Mail servers (MX) have IPv6
None of the mail servers has an AAAA record.
mxa-00206402.gslb.pphosted.com ✗mxb-00206402.gslb.pphosted.com ✗
no
Nameservers have IPv6
No nameserver has an AAAA record — an IPv6-only resolver can't reach this domain's DNS.
ns1.crowdstrike.com ✗ns2.crowdstrike.com ✗ns3.crowdstrike.com ✗ns4.crowdstrike.com ✗ns5.crowdstrike.com ✗ns6.crowdstrike.com ✗
no
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 2 redirects: HTTP 200.
https://crowdstrike.com/ via 2600:1408:c400:16::17d4:f804 → 301https://www.crowdstrike.com/ via 2600:1408:c400:16::17d4:f810 → 301https://www.crowdstrike.com/en-us/ via 2600:1408:c400:16::17d4:f810 → 200
works
 Load crowdstrike.com over IPv6 from up to six other places — a second opinion.

What's keeping crowdstrike.com from an A

  1. Mail servers without IPv6
    mxa-00206402.gslb.pphosted.com, mxb-00206402.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.
  2. Nameservers without IPv6
    ns1.crowdstrike.com, ns2.crowdstrike.com, ns3.crowdstrike.com, ns4.crowdstrike.com, ns5.crowdstrike.com, ns6.crowdstrike.com all have no AAAA record, so a resolver that only speaks IPv6 can't look your domain up. Most DNS providers offer IPv6 nameservers; ask yours, or move DNS to one that does.

Check again

crowdstrike.com  Has IPv6

A (IPv4)23.212.249.83
23.212.249.88
AAAA (IPv6)2600:1408:c400:16::17d4:f804
2600:1408:c400:16::17d4:f810

www.crowdstrike.com  Has IPv6

Alias ofcrowdstrike.com.edgekey.net → e207073.dsca.akamaiedge.net
A (IPv4)23.212.249.88
23.212.249.83
AAAA (IPv6)2600:1408:c400:16::17d4:f810
2600:1408:c400:16::17d4:f804

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

 Permanent link: aaaa.bot/r/qkanA19gru · How we measure

Checked 2026-11-02 05:32:08 UTC. Full DNS report: dns.pizza/domain/crowdstrike.com · JSON: /api/v1/crowdstrike.com