okcupid.com

Checked 22 October 2026, 10:05 UTC · via 8.8.8.8
!Passed with warnings
22 passed 3 warnings 0 failed 6 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2027-06-02

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
12 March 2003
Last changed
1 May 2026
Expires
2 June 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
nameserver1.okcupid.com, nameserver2.okcupid.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 2027-06-02 #3
    The registration is valid until 2027-06-02 (222 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited, client update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

warn

nameserver1.okcupid.com, nameserver2.okcupid.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
nameserver1.okcupid.com, nameserver2.okcupid.com
NS in the zone
nameserver1.okcupid.com, nameserver2.okcupid.com
NameserverAddressesNetwork (AS)Glue
nameserver1.okcupid.com173.245.58.37 2400:cb00:2049:1::adf5:3a25AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US173.245.58.37
nameserver2.okcupid.com173.245.59.24 2400:cb00:2049:1::adf5:3b18AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US173.245.59.24

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: nameserver1.okcupid.com, nameserver2.okcupid.com.
    #6
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • !
    Glue differs from the zone
    The addresses at the parent (glue) differ from the addresses in the zone: nameserver1.okcupid.com (glue 173.245.58.37, zone 173.245.58.37, 2400:cb00:2049:1::adf5:3a25); nameserver2.okcupid.com (glue 173.245.59.24, zone 173.245.59.24, 2400:cb00:2049:1::adf5:3b18). Update the glue at your registrar.
    #8
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • i
    One address family in one network
    all IPv6 addresses are in 2400:cb00:2049::/48, while the other address family is spread over several networks.
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 4 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

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
nameserver1.okcupid.com 173.245.58.37NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
nameserver1.okcupid.com 2400:cb00:2049:1::adf5:3a25NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
nameserver2.okcupid.com 173.245.59.24NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
nameserver2.okcupid.com 2400:cb00:2049:1::adf5:3b18NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2

Checks

  • ✓ All respond #14
    All 4 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: nameserver1.okcupid.com: "2026.10.2"; nameserver2.okcupid.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 2417895462 · primary nameserver1.okcupid.com

Found

Primary (MNAME)
nameserver1.okcupid.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417895462
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
nameserver1.okcupid.com (173.245.58.37)2417895462
nameserver1.okcupid.com (2400:cb00:2049:1::adf5:3a25)2417895462
nameserver2.okcupid.com (173.245.59.24)2417895462
nameserver2.okcupid.com (2400:cb00:2049:1::adf5:3b18)2417895462

Checks

  • ✓ Serial 2417895462 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 nameserver1.okcupid.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 2417895462 is a Unix timestamp (2046-08-14 21:37 UTC).

DNSSEC

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

info

35 records at the apex

Found

Read from
173.245.58.37:53
TypeValueTTL
SOAnameserver1.okcupid.com. dns.cloudflare.com. 2417895462 10000 2400 604800 18001800
NSnameserver1.okcupid.com.86400
NSnameserver2.okcupid.com.86400
A104.16.223.254300
A104.16.239.254300
A104.16.144.63300
A104.17.48.63300
A104.18.160.63300
MX1 aspmx.l.google.com.300
MX10 aspmx2.googlemail.com.300
MX10 aspmx3.googlemail.com.300
MX5 alt1.aspmx.l.google.com.300
MX5 alt2.aspmx.l.google.com.300
TXT"743775657-6737623"300
TXT"ZOOM_verify_FJjTsQ8XRda3w8-Gg8Uh7w"300
TXT"adobe-idp-site-verification=524cb03a118a8834795ef48a18932f5af8789dab734cd919ec0b7b56a12efa1b"300
TXT"anthropic-domain-verification-gj6xz6=MAv198pLK88chHcgfM57mubgg"300
TXT"atlassian-domain-verification=7bAK5z6BuWYhFebMZOB8EOsPGuFhIkDMPdPDCakvUimtGH6eU91aZtNUAcer84Ui"300
TXT"atlassian-domain-verification=ySfArD90okMxGOgfUHlUeuRYVFYhk4mx0eC4SsRbLea1Ox4YzmkiGl7PLAlV1bgG"300
TXT"clfgt8n6ccnlkcj45o9qtlc9d8"300
TXT"docker-verification=abc97707-450e-4817-b4b0-26c1af0aaf4d"300
TXT"docusign=a3303bd3-1d05-49ad-a7ca-f4f222e2ea7c"300
TXT"domain-verification=UDJ0N3k2SlVVbGphc3RpTmJjcXBnQTl5YU1OVy1UM0RjdlVTcjJWeVBMZVlNbjhkMk9adTdLSldL"300
TXT"dropbox-domain-verification=yz0n5jg932s0"300
TXT"e5 94 64 91 66 9f 00 28 02 46"300
TXT"google-site-verification=7l8M-hjwJYGXh9du1VgNMwWSDhvedzBKSOUdSYa04Ck"300
TXT"google-site-verification=L0z1iTsUm4IDmspcgQK2r5Du9xRJjyP_15kALLJbgqE"300
TXT"google-site-verification=LUTg43FCe3_oCX4Gi7OXhf30_OIAZRCpprfKobzAlQE"300
TXT"h1-domain-verification=Aqz9XpkSFqs3hHtTJ15Nu7U13TrNVJ7YhdyALWEujAF8y5uB"300
TXT"h3dfftun57uq9t19gqbfho15vi"300
TXT"keybase-site-verification=piRpEGDSgyYhnNK5eo7NdvZv13vHlSixQHoVL9MIPKI"300
TXT"notion_verify_WiwJ8GGCj0dzx40Qv6pikzpQPtkczh15VmrHey1h1nkwsVbsnthEMwzsDmbN4GvGQ68pEY"300
TXT"openai-domain-verification=dv-vAJ1AAR5AEkcS0yxVvRUYlxJ"300
TXT"tut8662h0gq4brg4cihs41e8po"300
TXT"v=spf1 mx include:_spf.google.com include:oknotify2.com include:mail.zendesk.com -all"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.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • i
    No CAA records
    Without CAA records any certificate authority may issue certificates for this domain. A CAA record limits issuance to the CAs you use.
    #35