Domain Intelligence Report

claude.com

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IPv6

Measured 2026-11-02 09:02 UTC · aaaa.bot
A

Website, mail and DNS all work over IPv6.

The published IPv6 address accepted a connection when we tried it.

  • ✓ claude.com answers (1 of 1 addresses)
  • ✓ www.claude.com answers (1 of 1)
  • ✓ Mail: has IPv6
  • ✓ Nameservers: 2 of 2 have IPv6
Details: published addresses and what answered

Loads over IPv6 with a valid certificate: HTTP 200.

claude.comPublished2607:6bc0::10Answers when we connect✓ answers on 443
www.claude.comPublished2607:6bc0::10Answers when we connect✓ answers on 443
MailPublishedNo MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record.Answers when we connecthas IPv6
NameserversPublishedisla.ns.cloudflare.comrandy.ns.cloudflare.comAnswers when we connect✓ has IPv6✓ has IPv6
First measured with IPv6 on 2026-11-02Changes are recorded from here on, each with its date.

Lineage

Our records: Oct 18, 2013 → Nov 2, 2026

Oldest registry snapshot we hold: 2013 · 7 renewals on record · DNS at Cloudflare · 2 nameserver changes seen. These dates are when our records begin, not when the domain was registered.

Registrar

  • Network Solutions, LLC
    Nov 2013 – Oct 2024
  • MarkMonitor, Inc.last seen Nov 2024
    Nov 2024

DNS provider

  • jomax.net
    Oct 2013 – Nov 2017
  • GoDaddy
    Apr 2018 – Nov 2024
  • CloudflareNOW
    Seen from Dec 2024

IPv6

  • IPv6published, and answering
    First measured Nov 2026
What changed (latest 8 of 10)
  1. IPv6 first measured: published, and answering on Nov 2, 2026claude.com has 1 IPv6 address. Grade A. Measured by aaaa.bot, 2026-11-02 09:02 UTC. No earlier IPv6 record is held, so this is not a "gained" date.
  2. DNS moved to Cloudflare between Nov 20, 2024 and Dec 26, 2024ns67.domaincontrol.com, ns68.domaincontrol.com → isla.ns.cloudflare.com, randy.ns.cloudflare.com. Old set last seen in WHOIS on 2024-11-20; new set first seen in WHOIS on 2024-12-26.
  3. Moved to MarkMonitor, Inc between Oct 22, 2024 and Nov 7, 2024From Network Solutions, LLC to MarkMonitor, Inc, with 2 years added. Expiry moved from 2026-05-23 to 2028-05-23.
  4. Renewed +3 years between Feb 3, 2023 and Feb 23, 2023Expiry moved from 2023-05-23 to 2026-05-23, at Network Solutions, LLC.
  5. Renewed +1 year between Feb 8, 2022 and Apr 1, 2022Expiry moved from 2022-05-23 to 2023-05-23, at Network Solutions, LLC.
  6. Renewed +1 year between Feb 16, 2021 and Jun 16, 2021Expiry moved from 2021-05-23 to 2022-05-23, at Network Solutions, LLC.
  7. Renewed +1 year between Feb 10, 2020 and Apr 10, 2020Expiry moved from 2020-05-23 to 2021-05-23, at Network Solutions, LLC.
  8. DNS moved to GoDaddy between Nov 20, 2017 and Apr 3, 2018wsc1.jomax.net, wsc2.jomax.net → ns67.domaincontrol.com, ns68.domaincontrol.com. Old set last seen in WHOIS on 2017-11-20; new set first in the registry zone file on 2018-04-03.

Solid bar: the stretch we observed that name. Dot: a single sighting. Dotted line: no record between sightings of the same name. Nothing is drawn between different names.

Registrar and renewals: 127 WHOIS/RDAP snapshots, 2013-11-09 to 2026-05-26 (ledger built 2026-09-27). Every renewal

DNS provider, registry zone files: 106 .com zone-file snapshots held, 2013-10-18 to 2026-11-01.

DNS provider, WHOIS snapshots: 98 WHOIS/RDAP snapshots that listed nameservers, 2013-11-09 to 2026-06-04 (who.is archive). Both sources feed one row per provider (hover a bar to see which); a change is placed between the nearest observations on either side, and where the two sources disagree, both are listed under What changed.

Gathering intelligence... (12/12)
DNS
WHOIS
Security
Email
DNSSEC
Threats
Deliverability
SSL/TLS
HTTP
Tech Stack
Subdomains
Archive
Outline
WHOIS
MarkMonitor Inc. · registered 31 years ago · expires May 23, 2028
DNS
1 A · 2 NS · 1 SOA · 5 TXT · 1 AAAA
SSL/TLS
Google Trust Services · TLSv1.3 · expires in 75d · 3 SANs
Email Auth
SPF ✗ · DKIM ✗ · DMARC ✓ (p=reject)
DNSSEC
not signed
Tech Stack
CDN: Cloudflare · Host: Anthropic, PBC · Cloudflare
HTTP
1 redirect → 200 · HSTS ✓ · CSP ✗ · X-Frame ✓ · Nosniff ✓
Security
C (130/215) · 2 critical · 2 high
Threats
risk: none
Deliverability
F (30/90) · 0 MX · 0 IPs · 3 issue(s)
Subdomains
3 found · 97 answered (15 timed out) — assets, status, www
Web Archive
DNS Recordschecked 26.6d ago
Details
1 A · 2 NS · 1 SOA · 5 TXT · 1 AAAA
WHOISchecked 26.6d ago
Details
MarkMonitor Inc.
Registered 31 years ago
Expires May 23, 2028
Then vs Nownew
No card for this name. We compare then and now for domains that are in the top million and had an AboutUs page. That says nothing about this domain’s age or safety.
Check what it is now →
SSL/TLSchecked 26.6d ago
Details
Valid certificate
Issuer: Google Trust Services
Protocol: TLSv1.3
Expires in 75 days
3 SAN(s)
Securitychecked 26.6d ago
Details
C
130/215
2 critical2 high1 medium
Weakest: Record Security, Basic Security
Email Authchecked 26.6d ago
Details
SPFDKIM?DMARC
Policy: reject
DNSSECchecked 26.6d ago
Details
Not DNSSEC-signed
Tech Stackchecked 26.6d ago
Details
CloudflareAnthropic, PBCCloudflareGoogle Search Console
HTTP / Headerschecked 26.6d ago
Details
1 redirect(s) → 200
HSTSCSPX-FrameNosniff
Threatschecked 26.6d ago
Details
Risk: none · score 0
Zone census
Subdomainschecked 26.6d ago
Details
3 found · 97 answered · 15 timed out (unknown)
Click a subdomain for its full report
Web Archivechecked 26.6d ago
Details
First archived: unknown
Deliverabilitychecked 26.6d ago
Details
F
30/90 · 3 issue(s)
0 MX · 0 IP(s)
Top fix: No SPF record

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