nielseniq.com

Checked 22 October 2026, 10:03 UTC · via 8.8.8.8
!Passed with warnings
24 passed 3 warnings 0 failed 4 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2028-06-24

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
24 June 2020
Last changed
23 May 2026
Expires
24 June 2028
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
edns64.ultradns.biz, edns64.ultradns.com, edns64.ultradns.net, edns64.ultradns.org
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 2028-06-24 #3
    The registration is valid until 2028-06-24 (611 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

info

edns64.ultradns.biz, edns64.ultradns.com, edns64.ultradns.net, edns64.ultradns.org

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
edns64.ultradns.biz, edns64.ultradns.com, edns64.ultradns.net, edns64.ultradns.org
NS in the zone
edns64.ultradns.biz, edns64.ultradns.com, edns64.ultradns.net, edns64.ultradns.org
NameserverAddressesNetwork (AS)Glue
edns64.ultradns.biz204.74.67.64 2610:a1:1015::240AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
edns64.ultradns.com204.74.66.64 2001:502:f3ff::240AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US2001:502:f3ff::240 204.74.66.64
edns64.ultradns.net204.74.110.64 2610:a1:1014::240AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
edns64.ultradns.org204.74.111.64 2001:502:4612::240AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-

Checks

  • ✓ 4 nameservers #6
    Delegated to edns64.ultradns.biz, edns64.ultradns.com, edns64.ultradns.net, edns64.ultradns.org.
  • ✓ 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 4 IPv4 /24s and 4 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS12008 (VERCARA - Vercara, LLC, US): 8 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • ✓ Nameserver names under 4 TLDs #12
    Nameserver names use the TLDs .biz, .com, .net, .org.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
edns64.ultradns.biz 204.74.67.64NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns64.ultradns.biz 2610:a1:1015::240NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns64.ultradns.com 204.74.66.64NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns64.ultradns.com 2001:502:f3ff::240NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns64.ultradns.net 204.74.110.64NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns64.ultradns.net 2610:a1:1014::240NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns64.ultradns.org 204.74.111.64NOERROR, 13 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns64.ultradns.org 2001:502:4612::240NOERROR, 32 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver

Checks

  • ✓ All respond #14
    All 8 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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: edns64.ultradns.biz: "UltraDNS Nameserver"; edns64.ultradns.com: "UltraDNS Nameserver"; edns64.ultradns.net: "UltraDNS Nameserver"; edns64.ultradns.org: "UltraDNS Nameserver".
    #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

warn

serial 2020109087 · primary edns64.ultradns.com

Found

Primary (MNAME)
edns64.ultradns.com
Contact (RNAME)
hugo\.paredes\.ap.nielsen.com
Serial
2020109087
Refresh / retry
86400 s / 86400 s
Expire
86400 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
edns64.ultradns.biz (204.74.67.64)2020109087
edns64.ultradns.biz (2610:a1:1015::240)2020109087
edns64.ultradns.com (204.74.66.64)2020109087
edns64.ultradns.com (2001:502:f3ff::240)2020109087
edns64.ultradns.net (204.74.110.64)2020109087
edns64.ultradns.net (2610:a1:1014::240)2020109087
edns64.ultradns.org (204.74.111.64)2020109087
edns64.ultradns.org (2001:502:4612::240)2020109087

Checks

  • ✓ Serial 2020109087 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    retry 1d should be shorter than refresh 1d; expire 1d is shorter than 7d; secondaries stop answering too soon when the primary is down; expire 1d must be longer than refresh + retry. Current values: refresh 1d, retry 1d, expire 1d, negative TTL 1d.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver edns64.ultradns.com is one of the listed nameservers.
  • ✓ Contact hugo.paredes.ap@nielsen.com #25
    The SOA RNAME hugo\.paredes\.ap.nielsen.com means hugo.paredes.ap@nielsen.com.
  • ✓ Timestamp serial #26
    The serial 2020109087 is a Unix timestamp (2034-01-05 21:24 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

warn

66 records at the apex

Found

Read from
204.74.67.64:53
TypeValueTTL
SOAedns64.ultradns.com. hugo\.paredes\.ap.nielsen.com. 2020109087 86400 86400 86400 8640086400
NSedns64.ultradns.biz.86400
NSedns64.ultradns.com.86400
NSedns64.ultradns.net.86400
NSedns64.ultradns.org.86400
A2.19.126.13720
A2.19.126.15720
MX0 nielseniq-com.mail.protection.outlook.com.600
TXT"MS=ms32646250"86400
TXT"cloudflare-verify.nielseniq.com"86400
TXT"_wrt07cmq89lbpf1d8brxwbz5e6drbqw"86400
TXT"bdfhhd9df5w3xk6d9yytmdkgwchhbb44"86400
TXT"msfpkey=lgy1py0kq5jlwxhb9b2uq8hb"86400
TXT"meltwater_sso_20220112_TRITON-7459"86400
TXT"asv=8ec76d138877eb4aedd4635da68e5d62"86400
TXT"asv=dc8b1e9f51cc88ff6bbdbed9b7d1371a"86400
TXT"questionpro-mail=l0EpJ0QNzCuU8jnrEk6Ohw"86400
TXT"E0ibXgXF=83807edaf7295169c04d066296b42254"86400
TXT"0ed1fe018a2844e7c26414414e835ac464be0d232b"86400
TXT"apple-domain-verification=o16D3pRamWUSb7fg"86400
TXT"flexera-domain-verification-lcminwqddcwdrllm"86400
TXT"docusign=ae506775-66cf-4f0e-b054-06d57ed8be5a"86400
TXT"docusign=de9b88ba-fcb6-4f46-a1e8-69c8a131d2c6"86400
TXT"docusign=ecfd8239-8710-44bb-b3cd-e6df320f8236"86400
TXT"zoho-verification=zb82715622.zmverify.zoho.com"86400
TXT"google-gws-recovery-domain-verification=49353989"86400
TXT"openai-domain-verification=dv-UwLUzZDh1abIAP8ThAaYxLty"86400
TXT"d365mktkey=GD1VSfcvfotDPlXvVIsxN0pjbSAKuludslDoF9bxyoQx"86400
TXT"d365mktkey=O8TEBxlrVgbr3boEyKQVCvfDzfFzBsOw9lBRaBGqzb8x"86400
TXT"d365mktkey=V35Yxrn3g4E3YJTez9Anxv9Mx0VESkfEVB47M3OcYKkx"86400
TXT"d365mktkey=WtFIWma7AqSG8feESsmhVTfAxMPWpJzuwOxodxHxKZEx"86400
TXT"docker-verification=6f602f5f-2286-45aa-a121-fb59efc9ec58"86400
TXT"miro-verification=8fdab2620c9cdbf3bb47bfd0d3de7b1b71489638"86400
TXT"mongodb-site-verification=E8PvXIFo3ycuvdiaxYoUBArD7w5BnsjR"86400
TXT"mongodb-site-verification=ZUaGgELgRaw4lFQ8BFZbGayw25rOeaVV"86400
TXT"mongodb-site-verification=drbqFJFqR9mRaYIZhjlApZYufzr736qm"86400
TXT"facebook-domain-verification=agd5ieeowlebgjrwmocnqbim6vjd19"86400
TXT"smartsheet-site-validation=4rR8WalZg2lUC_0ZoOfpx5K0TzYxiVJH"86400
TXT"twilio-domain-verification=13fe6ec172d37727e635eafe061c3b97"86400
TXT"onetrust-domain-verification=365e3ccda4ce4611bdf7de3a2783a9ad"86400
TXT"onetrust-domain-verification=a14e4394ca2b441080895c9456dd19a3"86400
TXT"onetrust-domain-verification=a6926ed4e2384e5db2ca7bf7227f8218"86400
TXT"anthropic-domain-verification-an4scs=4KCRDKvTeFzrlHgpb47yHENK4"86400
TXT"have-i-been-pwned-verification=6a593acfdad810c9cb009031413d5685"86400
TXT"google-site-verification=3RYjxgslzrXcDQzWe-PLTUgPwWjBSHmf7aN06A9pCVs"86400
TXT"google-site-verification=3X8Sobuid_WSRHme6WWD4_1GqDZ-3jKhhd68saLpkzE"86400
TXT"google-site-verification=NpteiMtBj-ygvtoxdaEduwCQ8LSnrZ1Gp0FYgjFDEbQ"86400
TXT"google-site-verification=VVK3dA3xbounYpL3IChoA3GvRmavYgjxPeRqP6Eo7gg"86400
TXT"google-site-verification=ZvOZv3CBPHCXGrFacFLA6tUa7ODd9UX0Y-kDmtJnmbw"86400
TXT"google-site-verification=bYKyTNTAYVdSeuyBSgR6cKOhkjzkC4o971wsXk5OFZw"86400
TXT"google-site-verification=skckI80Ydk9EWt3hHB4gTUB4JftNMbx1aGNerE4mhFo"86400
TXT"google-site-verification=wk_6lDVEWzzJFlQ9hLa4P6B2_oQ32CYUgEYLTnHmPZw"86400
TXT"mailerlite-domain-verification=081201bb7062067dada4bb85e2c6ff82d72fc0ca"86400
TXT"mailerlite-domain-verification=2d6545baa207ee4ced008bb061c72c42103a6ca6"86400
TXT"pardot31782=dd05ec7d8d137597f9adac3d67a1d903b22491d44c4cbecbbdc1e947f7baf8f6"86400
TXT"intersight=f78e5fadadcd0aebaf62a67fa0e155d92158c184a22a3a6787e1a2a90ff7cba6\010\010"86400
TXT"pardot271912=67cdaac379d2432d788e315fef91361fc6dfcbda74bca36bd4e3e7f80ce6f4ef"86400
TXT"pardot986461=c1916c924a42d56107ec881d9262f60cf57358a7816c42e029114ff669999250"86400
TXT"reachdesk-verification=Lm7RFfmuqaOQaAECfiqkhJ0IqIsWLPH1Awg9vHL6FrKY227KCzoNPBzsbGrdQa5b"86400
TXT"wiz-domain-verification=ec8a202af39c50b88f893c5865a36d30db9d265081cf9f76a9bbaed166a8ad34"86400
TXT"cisco-ci-domain-verification=7e89ed106f95c6174e23baf1540a6ff03d5d0c9cb4298146be4fd5ec7a718c8"86400
TXT"atlassian-domain-verification=JBJsU4rIy9QuMk1IXwpjeZEX5STfPVD5avM8Oy/LLnbN5TRuVLxHvpj0Htn8XJAr"86400
TXT"atlassian-domain-verification=becmd4RaCf0R63SnmykRnBmOySHPV0qrzgS0cVPh68ScWcUb0tjtBjgaqGGCqrSl"86400
TXT"atlassian-domain-verification=dU8KTqwwUdu27SyUUERKt/F30h63OYA6VrEoh/Q4Xgg6fygrmK4VeaxHDHLmyM24"86400
TXT"atlassian-domain-verification=lXsA9OyqaZGQGaF7zfaqZTZlCLMmXGjtnWj1XWe1YDLjW9cTgzWfzbVnMAlEji6k"86400
TXT"v=spf1 ip4:52.35.220.252 ip4:52.39.228.22 ip4:52.88.135.56 ip4:54.148.1.33 ip4:54.201.133.252 ip4:35.160.180.46 ip4:44.239.144.125 ip4:44.237.0.252 include:ipreomail.com include:spf.protection.outlook.com include:spf1.enterprisenet.org ~all"86400

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (20s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 1d; resolvers may use either.
    #32
  • ✓ 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