kraken.com

Checked 22 October 2026, 09:32 UTC · via 8.8.8.8
!Passed with warnings
28 passed 1 warning 0 failed 6 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2033-04-03

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
3 April 2000
Last changed
1 October 2026
Expires
3 April 2033
Status
client delete prohibited, client transfer prohibited, client update prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
art.ns.cloudflare.com, kim.ns.cloudflare.com
RDAP server
https://rdap.verisign.com/com/v1/

Checks

  • i
    .com is a generic TLD (gTLD)
    Generic TLD under an ICANN registry agreement: ICANN-accredited registrars, UDRP and RDAP apply.
    #1
  • ✓ TLD delegated and signed #2
    .com is delegated in the root zone and DNSSEC-signed.
  • ✓ Expires on 2033-04-03 #3
    The registration is valid until 2033-04-03 (2355 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited, client update prohibited, server delete prohibited, server transfer prohibited, server update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

art.ns.cloudflare.com, kim.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
art.ns.cloudflare.com, kim.ns.cloudflare.com
NS in the zone
art.ns.cloudflare.com, kim.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
art.ns.cloudflare.com173.245.59.102 108.162.193.102 172.64.33.102 2606:4700:58::adf5:3b66 2a06:98c1:50::ac40:2166 2803:f800:50::6ca2:c166AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US108.162.193.102 172.64.33.102 173.245.59.102 2606:4700:58::adf5:3b66 2803:f800:50::6ca2:c166 2a06:98c1:50::ac40:2166
kim.ns.cloudflare.com172.64.32.126 108.162.192.126 173.245.58.126 2606:4700:50::adf5:3a7e 2803:f800:50::6ca2:c07e 2a06:98c1:50::ac40:207eAS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US108.162.192.126 172.64.32.126 173.245.58.126 2606:4700:50::adf5:3a7e 2803:f800:50::6ca2:c07e 2a06:98c1:50::ac40:207e

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: art.ns.cloudflare.com, kim.ns.cloudflare.com.
    #6
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ No glue needed #8
    All nameservers are outside the zone, so no glue records are needed.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • ✓ Nameservers in different networks #10
    The nameservers are spread over 6 IPv4 /24s and 4 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 12 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • i
    All nameserver names under .com
    All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.
    #12
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

warn

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
art.ns.cloudflare.com 173.245.59.102NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
art.ns.cloudflare.com 108.162.193.102NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
art.ns.cloudflare.com 172.64.33.102NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
art.ns.cloudflare.com 2606:4700:58::adf5:3b66NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
art.ns.cloudflare.com 2a06:98c1:50::ac40:2166NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
art.ns.cloudflare.com 2803:f800:50::6ca2:c166NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
kim.ns.cloudflare.com 172.64.32.126NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
kim.ns.cloudflare.com 108.162.192.126NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
kim.ns.cloudflare.com 173.245.58.126NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
kim.ns.cloudflare.com 2606:4700:50::adf5:3a7eNOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
kim.ns.cloudflare.com 2803:f800:50::6ca2:c07eNOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
kim.ns.cloudflare.com 2a06:98c1:50::ac40:207eNOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2

Checks

  • ✓ All respond #14
    All 12 nameserver addresses answered.
  • ✓ All authoritative #15
    Every responding nameserver answers authoritatively for the zone.
  • ✓ No recursion #16
    The nameservers do not answer recursive queries for other domains.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: art.ns.cloudflare.com: "2026.10.2"; kim.ns.cloudflare.com: "2026.10.2". Hide or replace the version string.
    #17
  • ✓ Zone transfers refused #18
    No nameserver allows a zone transfer to the public.
  • ✓ TCP supported #19
    All nameservers answer over TCP.
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

pass

serial 2418043805 · primary art.ns.cloudflare.com

Found

Primary (MNAME)
art.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2418043805
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
art.ns.cloudflare.com (173.245.59.102)2418043805
art.ns.cloudflare.com (108.162.193.102)2418043805
art.ns.cloudflare.com (172.64.33.102)2418043805
art.ns.cloudflare.com (2606:4700:58::adf5:3b66)2418043805
art.ns.cloudflare.com (2a06:98c1:50::ac40:2166)2418043805
art.ns.cloudflare.com (2803:f800:50::6ca2:c166)2418043805
kim.ns.cloudflare.com (172.64.32.126)2418043805
kim.ns.cloudflare.com (108.162.192.126)2418043805
kim.ns.cloudflare.com (173.245.58.126)2418043805
kim.ns.cloudflare.com (2606:4700:50::adf5:3a7e)2418043805
kim.ns.cloudflare.com (2803:f800:50::6ca2:c07e)2418043805
kim.ns.cloudflare.com (2a06:98c1:50::ac40:207e)2418043805

Checks

  • ✓ Serial 2418043805 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h46m40s, retry 40m, expire 7d, negative TTL 30m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver art.ns.cloudflare.com is one of the listed nameservers.
  • ✓ Contact dns@cloudflare.com #25
    The SOA RNAME dns.cloudflare.com means dns@cloudflare.com.
  • ✓ Timestamp serial #26
    The serial 2418043805 is a Unix timestamp (2046-08-16 14:50 UTC).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC
Signatures valid until
23 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
2371ECDSAP256SHA256 (13)SHA256 8502A2AA1F85B6AF…yes

DNSKEY in the zone

Key tagRoleAlgorithm
2371KSK (257)ECDSAP256SHA256 (13)
34505ZSK (256)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 2371 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 50h0m0s and created on demand; the current one was made at 2026-10-21 08:32 UTC and expires at 2026-10-23 10:32 UTC.
  • i
    NSEC
    The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.
    #31

Records

info

48 records at the apex

Found

Read from
173.245.59.102:53
TypeValueTTL
SOAart.ns.cloudflare.com. dns.cloudflare.com. 2418043805 10000 2400 604800 18001800
NSart.ns.cloudflare.com.86400
NSkim.ns.cloudflare.com.86400
A104.17.187.205300
A104.17.189.205300
A104.17.185.205300
A104.17.188.205300
A104.17.186.205300
MX1 smtp.google.com.300
TXT"MS=ms92323866"300
TXT"TSW_MTk2M3RlcmFzd2l0Y2g="300
TXT"anthropic-domain-verification-qq6f4e=yMnhINbeoqj341dPhfek46Gvw"300
TXT"applause-verification=475eb036-5381-4119-9100-5293e2ce0ba8"300
TXT"apple-domain-verification=GxkQnQWBDwHc5Lwo"300
TXT"apple-domain-verification=jhXlcC3333rByj6_TIRCWS8depzse4Zg_PA2TAA8MvY"300
TXT"atlassian-domain-verification=4jtiW1tiUQSTvJZESUb2w2e6bDUeZnwV3HuW4EKB8Dnj7wVDMzFFvtXm/mFgKiq/"300
TXT"attio-domain-verification=2PW6H5PPEKZJ5NZ536X46U9D"300
TXT"borderless-ai-domain-verification-891kzp=imAYYfgCNhUvxixCG9xeLErS7"300
TXT"chain-patrol-domain-verification-d32dw1=6Bi2nOcSd80VwhhSb1ieNE23u"300
TXT"clickhouse-verification=4c8a134dda8d683bf54acd04dc9d7f667e0bed3939f9f31837f8d161a272e4d5"300
TXT"cursor-domain-verification-1q4veq=T4badkQWyIFP5sdGc2ZdZO5hH"300
TXT"docusign=9c156ad3-ca07-455a-ac23-4b069bff0cfc"300
TXT"docusign=df1e68ac-ef17-4239-a91c-ddc63bbf37a0"300
TXT"facebook-domain-verification=aoubhu5uh89ja6n8x12q5rwgxjy4qk"300
TXT"google-site-verification=Pn6aFNBpXpjjEwQiBhV2w86qkmACWSj6bSWf6iq93N4"300
TXT"google-site-verification=XPT9uOe0jA_sa1A9KO2KHlflVyytnnJI6c51vXL7Th0"300
TXT"have-i-been-pwned-verification=dweb_htjuxmmxivpa7y21mu12mq4f"300
TXT"hubspot-domain-verification=YzE0ZGQ3MDYtYzc0ZC00MjhjLTg1MzktNWFhOWY0MGVmN2Uy"300
TXT"hubspot-domain-verification=ZDNhOWZkYmMtZjU0Yi00NjM0LTg0YTYtOWI3ZmM3ZDE1MTMx"300
TXT"jamf-site-verification=s7-zemXlw9o875MwP_jHJQ"300
TXT"linear-domain-verification=z4df5eemibyi"300
TXT"loom-site-verification=0994d1d30bec445bb94dee2ca26c6672"300
TXT"lovable_verification=yrJSzJCXE2IlVOsGopmj"300
TXT"mixpanel-domain-verify=8d24704c-eebf-4a86-bc1d-5facea16d192"300
TXT"onetrust-domain-verification=ef58037d66994387a249e260b49da885"300
TXT"openai-domain-verification=dv-dzZ4sOyX0NcWC0W69R0SsmoJ"300
TXT"sinch-domain-verification=f784f03b-c2b8-4acc-8790-30b91c091d49"300
TXT"slack-domain-verification=xF9FoS5YecfnIOdXDAWxjJlBJeTP4k0x4XVUDcBm"300
TXT"status-page-domain-verification=zvdwk97f78sw"300
TXT"stripe-verification=B89F0E1D6E90A552E5ECE7D2D56F60D28CF6D65A5DBE42056FD217BE30C91200"300
TXT"tenderly-domain-verification-h41x4t=Xb51eXZGQ6C9IlZJXexoZnSkh"300
TXT"v=spf1 include:_spf.google.com include:mail.zendesk.com include:mailgun.org -all"300
TXT"verification_token=YEulsvbYjUK5ARSNvSKChCvak"300
TXT"yahoo-verification-key=vaBi9VRY3fC1ePDJDKbb3JeKZkVxdHdNNS2ehnZfPNs="300
CAA0 iodef "mailto:certificate-abuse@kraken.com"300
CAA0 issue "amazonaws.com"300
CAA0 issue "digicert.com"300
CAA0 issue "pki.goog"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 5m, NS 1d. The NS TTL at the parent is 2d and in the zone 1d; resolvers may use either.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: amazonaws.com, digicert.com, pki.goog.