zoominfo.com

Checked 22 October 2026, 11:44 UTC · via 8.8.8.8
!Passed with warnings
25 passed 2 warnings 0 failed 4 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2029-01-30

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
16 October 2003
Last changed
5 June 2025
Expires
30 January 2029
Status
client delete prohibited, client transfer prohibited, client update prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
rita.ns.cloudflare.com, tim.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 2029-01-30 #3
    The registration is valid until 2029-01-30 (830 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

rita.ns.cloudflare.com, tim.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
rita.ns.cloudflare.com, tim.ns.cloudflare.com
NS in the zone
rita.ns.cloudflare.com, tim.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
rita.ns.cloudflare.com173.245.58.140 172.64.32.140 108.162.192.140 2803:f800:50::6ca2:c08c 2a06:98c1:50::ac40:208c 2606:4700:50::adf5:3a8cAS13335 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., US108.162.192.140 172.64.32.140 173.245.58.140 2606:4700:50::adf5:3a8c 2803:f800:50::6ca2:c08c 2a06:98c1:50::ac40:208c
tim.ns.cloudflare.com173.245.59.145 108.162.193.145 172.64.33.145 2803:f800:50::6ca2:c191 2606:4700:58::adf5:3b91 2a06:98c1:50::ac40:2191AS13335 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., US108.162.193.145 172.64.33.145 173.245.59.145 2606:4700:58::adf5:3b91 2803:f800:50::6ca2:c191 2a06:98c1:50::ac40:2191

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: rita.ns.cloudflare.com, tim.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
rita.ns.cloudflare.com 173.245.58.140NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
rita.ns.cloudflare.com 172.64.32.140NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
rita.ns.cloudflare.com 108.162.192.140NOERROR, 13 ms, authoritativenoyes / yesrefused2026.10.2
rita.ns.cloudflare.com 2803:f800:50::6ca2:c08cNOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
rita.ns.cloudflare.com 2a06:98c1:50::ac40:208cNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
rita.ns.cloudflare.com 2606:4700:50::adf5:3a8cNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
tim.ns.cloudflare.com 173.245.59.145NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
tim.ns.cloudflare.com 108.162.193.145NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
tim.ns.cloudflare.com 172.64.33.145NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
tim.ns.cloudflare.com 2803:f800:50::6ca2:c191NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
tim.ns.cloudflare.com 2606:4700:58::adf5:3b91NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
tim.ns.cloudflare.com 2a06:98c1:50::ac40:2191NOERROR, 15 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: rita.ns.cloudflare.com: "2026.10.2"; tim.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 2418088241 · primary rita.ns.cloudflare.com

Found

Primary (MNAME)
rita.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2418088241
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
rita.ns.cloudflare.com (173.245.58.140)2418088241
rita.ns.cloudflare.com (172.64.32.140)2418088241
rita.ns.cloudflare.com (108.162.192.140)2418088241
rita.ns.cloudflare.com (2803:f800:50::6ca2:c08c)2418088241
rita.ns.cloudflare.com (2a06:98c1:50::ac40:208c)2418088241
rita.ns.cloudflare.com (2606:4700:50::adf5:3a8c)2418088241
tim.ns.cloudflare.com (173.245.59.145)2418088241
tim.ns.cloudflare.com (108.162.193.145)2418088241
tim.ns.cloudflare.com (172.64.33.145)2418088241
tim.ns.cloudflare.com (2803:f800:50::6ca2:c191)2418088241
tim.ns.cloudflare.com (2606:4700:58::adf5:3b91)2418088241
tim.ns.cloudflare.com (2a06:98c1:50::ac40:2191)2418088241

Checks

  • ✓ Serial 2418088241 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 rita.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 2418088241 is a Unix timestamp (2046-08-17 03:10 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

pass

65 records at the apex

Found

Read from
173.245.58.140:53
TypeValueTTL
SOArita.ns.cloudflare.com. dns.cloudflare.com. 2418088241 10000 2400 604800 18001800
NSrita.ns.cloudflare.com.86400
NStim.ns.cloudflare.com.86400
A104.16.118.43300
A104.16.117.43300
AAAA2606:4700::6810:762b300
AAAA2606:4700::6810:752b300
MX10 mxa-0042bc01.gslb.pphosted.com.300
MX10 mxb-0042bc01.gslb.pphosted.com.300
TXT"0ed1fe018a83a1a25394024dadbc718d52c026f8eb"300
TXT"33904d6d-5e21-4a18-8e46-b170ae80b68e"300
TXT"7s5ys3r5gsrzsm1lxdhgmp6903dfypp0"300
TXT"MS=ms33572304"300
TXT"MS=ms38951267"300
TXT"MS=ms65324670"300
TXT"_elastic_domain_challenge=6e1e719d7eb9dfeb13b9f6e7f64414e005d1a4da36c43074b06c0ccdb6634fe3"300
TXT"_n4k3s4c3lnx9uq8loq8e4qrgizqenc4"300
TXT"_qkt0vyeudqdmyimlu1sicmvr5yhojvo"300
TXT"airtable-verification=7d5c4bb1083aed6e27cd99985c49ac81"300
TXT"asv=1d6c4fb60f2790b5d26fed0bb12bd115"300
TXT"asv=2d91cb2d6544d7a3891d743d45d5cc45"300
TXT"atlassian-domain-verification=nLP991XRIVfjHgLMjm0qm2oeZMikTd77NgfuPXxrIBqkkkTZgr9asQXYd6scjmaI"300
TXT"box-domain-verification=03a9187e13251fb31e146271331be39f6465c7691b6c597729582302d1b2e4bd"300
TXT"brevo-code:3fc323c894e26fcbb4611b5486a7dba7"300
TXT"cisco-ci-domain-verification=75cb9074f645f91ce729c4564e1e073eaa626bf0466be6b5e8028e29613f9b60"300
TXT"docusign=4e925286-966b-4869-81ec-23fbbe116a16"300
TXT"ecostruxure-it-verification=63b73ded-c9a0-43d5-a4bc-13bc4b86cdac"300
TXT"facebook-domain-verification=8xqew8kv8q2qml8urdur3wijr5ginf"300
TXT"google-site-verification:m4g1eOID25e-EuZCXCXyalWrcskGHtkDMI3A4-0qjC0"300
TXT"google-site-verification=-ukM4y3JvL3Toa2D44DXo_b5u7wwUhaaVYfFzPHzP5I"300
TXT"google-site-verification=460JvyZeIw91-DWG0ZEsnAGMxMiSPVug2qJcXevHCDE"300
TXT"google-site-verification=6mXTBuDHk-2Du-x2_EucW6isU05nrWXQne3jF5QsGU8"300
TXT"google-site-verification=Ck8kCbNGwHAEOnj9O7xMBPG0WBXl1bTju9N2mvtpYWo"300
TXT"google-site-verification=Ykk1G2OZGjvrWYGXMqhUO9ADxZAa2u7wl2jM7-VRI8I"300
TXT"google-site-verification=gA2P07VwyAI8D1HzwOO0Q7gVOnctkRTliJ8FxgWyjK8"300
TXT"google-site-verification=gg10WGEg16Cp7M5hcqsTRxE0K_f34PWizql6mjRUOPg"300
TXT"google-site-verification=hS3UbWUbG2FL6MMb9K1Nkk1tboMZk2enQCRxZL95PXM"300
TXT"google-site-verification=lBWYr74utT4FeN7oUCykhwiW1woGDhS7S0A4M7isQhA"300
TXT"google-site-verification=o9iKGrOMdBp_NYSpUvDUa4okJHX8lafcD0rCjFoyBTU"300
TXT"hUHXNRkPrDG/vT7H4SJCG2xTF9fMTKMhfuP72fEgCsrux2DijrADGxZIfaNs6lR/5qzfiHU+CyR6mSxGMXexKQ=="300
TXT"hubspot-developer-verification=MWI1YTkyNDctODZmNi00MTBhLWE5MTYtNDBhMWEzZTQ2ODg3"300
TXT"hubspot-developer-verification=NDNjNmJlZDYtNGVhOS00MGQxLWFlYjMtODkxZDY2NDc2NmY0"300
TXT"jamf-site-verification=6RDl4wTo2zo5foO4qIdvUQ"300
TXT"pendo-domain-verification=155ca67e-9833-4698-b886-9215b2431dea"300
TXT"postman-domain-verification=8eea31cc5b7cfbfff163d605845f51d65296766bb351bc622935839be65abffc31a03fb67bd1c4fa744760df4f04d4e7586c7ead877f00eda7849bb0b71ade13"300
TXT"segment-site-verification=90RRtjxCS6RhpBwQXWa4KZwBygYQCOBT"300
TXT"smartsheet-site-validation=oCkvv_UFOL0zilzID65xfuiYGFuME7lx"300
TXT"v=spf1 include:_u.zoominfo.com._spf.smart.ondmarc.com -all"300
TXT"verification=b384fc086e99452bad93e15dfbe59451"300
TXT"wiz-domain-verification=8df7ec58ab5c882d7d7bad1df1200d77f97a5c7f898ea1ef0904511e9954ca91"300
TXT"yahoo-verification-key=1mwvI3bkKwq2edAI3E6IBXFKZaucTzMI9n4ynwwKxC4="300
TXT"zapier-domain-verification-challenge=db195766-a847-4db2-b88a-459d5695aa90"300
CAA0 iodef "mailto:security@zoominfo.com"300
CAA0 issue "amazon.com"300
CAA0 issue "comodoca.com"300
CAA0 issue "digicert.com; cansignhttpexchanges=yes"300
CAA0 issue "entrust.com"300
CAA0 issue "letsencrypt.org"300
CAA0 issue "pki.goog; cansignhttpexchanges=yes"300
CAA0 issue "ssl.com"300
CAA0 issuewild "comodoca.com"300
CAA0 issuewild "digicert.com; cansignhttpexchanges=yes"300
CAA0 issuewild "letsencrypt.org"300
CAA0 issuewild "pki.goog; cansignhttpexchanges=yes"300
CAA0 issuewild "ssl.com"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: amazon.com, comodoca.com, digicert.com, entrust.com, letsencrypt.org, pki.goog, ssl.com.