vmware.com

Checked 22 October 2026, 11:22 UTC · via 8.8.8.8
!Passed with warnings
25 passed 3 warnings 0 failed 3 info

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2030-01-29

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
30 January 1998
Last changed
7 January 2025
Expires
29 January 2030
Status
client transfer prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
edns161.ultradns.biz, edns161.ultradns.com, edns161.ultradns.net, edns161.ultradns.org, ns95.ultradns2.com, ns95.ultradns2.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 2030-01-29 #3
    The registration is valid until 2030-01-29 (1194 days).
  • ✓ Transfer locked #4
    Registry status: client transfer 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

warn

edns161.ultradns.biz, edns161.ultradns.com, edns161.ultradns.net, edns161.ultradns.org, ns95.ultradns2.com, ns95.ultradns2.org

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
edns161.ultradns.biz, edns161.ultradns.com, edns161.ultradns.net, edns161.ultradns.org, ns95.ultradns2.com, ns95.ultradns2.org
NS in the zone
edns161.ultradns.biz, edns161.ultradns.com, edns161.ultradns.net, edns161.ultradns.org, ns96.ultradns2.com, ns96.ultradns2.org
NameserverAddressesNetwork (AS)Glue
edns161.ultradns.biz204.74.67.161 2610:a1:1015::2a1AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
edns161.ultradns.com204.74.66.161 2001:502:f3ff::2a1AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US2001:502:f3ff::2a1 204.74.66.161
edns161.ultradns.net204.74.110.161 2610:a1:1014::2a1AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
edns161.ultradns.org204.74.111.161 2001:502:4612::2a1AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
ns95.ultradns2.com (parent only)204.74.104.95 2610:a1:315f::53AS399153 SECURITYSERVICES - Vercara, LLC, US AS399155 SECURITYSERVICES - Vercara, LLC, US204.74.104.95 2610:a1:315f::53
ns95.ultradns2.org (parent only)204.74.106.95 2610:a1:325f::53AS399154 SECURITYSERVICES - Vercara, LLC, US AS399154 SECURITYSERVICES - Vercara, LLC, US-
ns96.ultradns2.com (zone only)204.74.104.96 2610:a1:3160::53AS399153 SECURITYSERVICES - Vercara, LLC, US AS399155 SECURITYSERVICES - Vercara, LLC, US-
ns96.ultradns2.org (zone only)204.74.106.96 2610:a1:3260::53AS399154 SECURITYSERVICES - Vercara, LLC, US AS399154 SECURITYSERVICES - Vercara, LLC, US-

Checks

  • ✓ 6 nameservers #6
    Delegated to edns161.ultradns.biz, edns161.ultradns.com, edns161.ultradns.net, edns161.ultradns.org, ns95.ultradns2.com, ns95.ultradns2.org.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only at the parent: ns95.ultradns2.com, ns95.ultradns2.org; only in the zone: ns96.ultradns2.com, ns96.ultradns2.org. edns161.ultradns.biz, edns161.ultradns.com, edns161.ultradns.net, edns161.ultradns.org, ns95.ultradns2.com, ns95.ultradns2.org, ns96.ultradns2.com, ns96.ultradns2.org report NS edns161.ultradns.biz edns161.ultradns.com edns161.ultradns.net edns161.ultradns.org ns96.ultradns2.com ns96.ultradns2.org.
    #7
  • ✓ 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 8 IPv6 /48s.
  • ✓ 4 autonomous systems #11
    The nameservers are spread over: AS12008 (VERCARA - Vercara, LLC, US): 8 addresses; AS399153 (SECURITYSERVICES - Vercara, LLC, US): 2 addresses; AS399154 (SECURITYSERVICES - Vercara, LLC, US): 4 addresses; AS399155 (SECURITYSERVICES - Vercara, LLC, US): 2 addresses.
  • ✓ 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

16 of 16 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
edns161.ultradns.biz 204.74.67.161NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns161.ultradns.biz 2610:a1:1015::2a1NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns161.ultradns.com 204.74.66.161NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns161.ultradns.com 2001:502:f3ff::2a1NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns161.ultradns.net 204.74.110.161NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns161.ultradns.net 2610:a1:1014::2a1NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns161.ultradns.org 204.74.111.161NOERROR, 13 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns161.ultradns.org 2001:502:4612::2a1NOERROR, 31 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns95.ultradns2.com 204.74.104.95NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns95.ultradns2.com 2610:a1:315f::53NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns95.ultradns2.org 204.74.106.95NOERROR, 13 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns95.ultradns2.org 2610:a1:325f::53NOERROR, 14 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns96.ultradns2.com 204.74.104.96NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns96.ultradns2.com 2610:a1:3160::53NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns96.ultradns2.org 204.74.106.96NOERROR, 13 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns96.ultradns2.org 2610:a1:3260::53NOERROR, 13 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver

Checks

  • ✓ All respond #14
    All 16 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: edns161.ultradns.biz: "UltraDNS Nameserver"; edns161.ultradns.com: "UltraDNS Nameserver"; edns161.ultradns.net: "UltraDNS Nameserver"; edns161.ultradns.org: "UltraDNS Nameserver"; ns95.ultradns2.com: "UltraDNS Nameserver"; ns95.ultradns2.org: "UltraDNS Nameserver"; ns96.ultradns2.com: "UltraDNS Nameserver"; ns96.ultradns2.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

info

serial 1660095331 · primary dns1.p05.nsone.net

Found

Primary (MNAME)
dns1.p05.nsone.net
Contact (RNAME)
hostmaster.nsone.net
Serial
1660095331
Refresh / retry
3600 s / 600 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
edns161.ultradns.biz (204.74.67.161)1660095331
edns161.ultradns.biz (2610:a1:1015::2a1)1660095331
edns161.ultradns.com (204.74.66.161)1660095331
edns161.ultradns.com (2001:502:f3ff::2a1)1660095331
edns161.ultradns.net (204.74.110.161)1660095331
edns161.ultradns.net (2610:a1:1014::2a1)1660095331
edns161.ultradns.org (204.74.111.161)1660095331
edns161.ultradns.org (2001:502:4612::2a1)1660095331
ns95.ultradns2.com (204.74.104.95)1660095331
ns95.ultradns2.com (2610:a1:315f::53)1660095331
ns95.ultradns2.org (204.74.106.95)1660095331
ns95.ultradns2.org (2610:a1:325f::53)1660095331
ns96.ultradns2.com (204.74.104.96)1660095331
ns96.ultradns2.com (2610:a1:3160::53)1660095331
ns96.ultradns2.org (204.74.106.96)1660095331
ns96.ultradns2.org (2610:a1:3260::53)1660095331

Checks

  • ✓ Serial 1660095331 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 10m, expire 7d, negative TTL 1h.
  • i
    Hidden master
    The primary nameserver dns1.p05.nsone.net is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.
    #24
  • ✓ Contact hostmaster@nsone.net #25
    The SOA RNAME hostmaster.nsone.net means hostmaster@nsone.net.
  • ✓ Timestamp serial #26
    The serial 1660095331 is a Unix timestamp (2022-08-10 01:35 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

77 records at the apex

Found

Read from
204.74.67.161:53
TypeValueTTL
SOAdns1.p05.nsone.net. hostmaster.nsone.net. 1660095331 3600 600 604800 36003600
NSns96.ultradns2.com.3600
NSns96.ultradns2.org.3600
NSedns161.ultradns.biz.3600
NSedns161.ultradns.com.3600
NSedns161.ultradns.net.3600
NSedns161.ultradns.org.3600
A50.112.202.115150
A52.13.171.212150
A54.68.22.26150
MX10 smtp.google.com.900
TXT"3008133"3600
TXT"MS=ms50045578"3600
TXT"MS=ms74706581"3600
TXT"MS=ms91527960"3600
TXT"00d400000009hqreay"3600
TXT"00df40000003u6teaa"3600
TXT"FASTLY-VERIFY-12-9-19"3600
TXT"99fxgmn8cj2fxk8x9qdqvk6hyv9pf3py"3600
TXT"_bjwmkkh45e9v4re8tujctglh2ql7b5n"3600
TXT"_e0u6n9q6ngsvggo5emdy8qxcfsfi7oc"3600
TXT"_kernszxt0vx4g8l2s0eym2q9zeswmuv"3600
TXT"wework-site-verification=xBKzSDF0JfmEqy4c"3600
TXT"fastly-domain-delegation-mcdd458582-1112022"3600
TXT"fastly-domain-delegation-KtCjsXrp5q-08032021"3600
TXT"status-page-domain-verification=1sgw6tqskp22"3600
TXT"status-page-domain-verification=rj8wh0bdxw3b"3600
TXT"status-page-domain-verification=trdsdy90xgqk"3600
TXT"status-page-domain-verification=ty89pncqjs7x"3600
TXT"status-page-domain-verification=yfz8ltqh8jjw"3600
TXT"docusign=37206071-cc3b-44cf-9f2d-f8c5f945be76"3600
TXT"docusign=dd076d14-70a2-40c7-a441-d4cb7860ad89"3600
TXT"fastly-domain-delegation-ZWuvc6sWXdcHL2U2-2024-02-12"3600
TXT"fastly-domain-delegation-6wkER3jIAz-146692-2019-06-24"3600
TXT"amazonses:0kvwPw9J4R4kusTDzYS1ZkLQb4VSpOhB/LX0mNAJDX4="3600
TXT"amazonses:3DD/+IEGETxv2v4tVmNdc+dBriuj/bqEMm2q3TbQnGY="3600
TXT"amazonses:CF4N4hyd8lVZ9L/Sh3O4RWSmPX5lPDkLEagX85ph1Y4="3600
TXT"amazonses:GFBIxLQ5P2/dqwwdIi0c4J6YTr8sLZXy/5r6RfsH2UQ="3600
TXT"amazonses:VSp8NJhnwKSEQ3BoAlGyg3asr0SCwBUjSuX+pFJ0AMs="3600
TXT"amazonses:a+yze0PpxSF/FtjGFCS6/RMOebY/dVPwk+qwG4zzKgI="3600
TXT"amazonses:i8Vqt+PN1+Mby/bRsf+1UegmAY1NyN1znDFWEzRhmR8="3600
TXT"amazonses:qiHMMWkqRG/G1KpKuot7AVDpNvK+JGUbDuE2Hbdh0MI="3600
TXT"docker-verification=d405e10f-acdc-4e6e-8fc2-f8158259db11"3600
TXT"mongodb-site-verification=oeY3MqvbVh1mixlxfiX6m49ibtHVSnqI"3600
TXT"facebook-domain-verification=0tcbl83rw8jkgkus4wvdlwq7yazygp"3600
TXT"globalsign-domain-verification=37C62FC3F2EBE2AA95A874665C90B161"3600
TXT"globalsign-domain-verification=8ce5574842816c083dfd5f5cb3768012"3600
TXT"adobe-idp-site-verification=443d9c03-e33b-4c4e-8628-435071557144"3600
TXT"clickup-verification=mBlG6BNMsADia1ut6VjkuZqSEyE7nioLZYV-fWMbQuw"3600
TXT"google-site-verification=VKeG2sllOKLgCZCFS-YDbHjAlppBiLf7jfU17LhufiY"3600
TXT"google-site-verification=gW3y8W9JYhTs3PFc4QmqhVrdazaxKDSJ4uhp6juX224"3600
TXT"google-site-verification=gbOTDgi4N5jaxMBARxz2Z2E-9SRqtb-bagIMdbfbwYM"3600
TXT"google-site-verification=pGD4g64IeGz_IhUW8405-5XldaPcS0msUNZykWLZrmo"3600
TXT"google-site-verification=vYIAadCxu2LIMziO1aPTeG3d-1WQ5flIu70gpZVD590"3600
TXT"liveramp-site-verification=JEnENVIIqS5B-SRQTGSNPRMhno0_O2-iulud-BFvez0"3600
TXT"globalsign-domain-verification=GBReh3q0WFyqVPnQFxGNsyODk8eCNaLkivCfA80jp5"3600
TXT"_globalsign-domain-verification=BEaeaS2zFLciLbNzABrdD9A1ghRtM395-qbg9FJmEu"3600
TXT"pardot_338801_*=b68999dcd3fe0d4ae9e5745665a045696a609145988182939ea322765323944f"3600
TXT"PETdvG2zEfifk8IKy3fYBD1C6FQdznnEoDtAF/lpAY8J1QuY4mmEZJkOrJg65NF6giUIXMB5ta8wcv5iOCG5oA=="3600
TXT"vxzdv4ORPsq4PSb2rZaR9RywmzKiKxqE4siErezObK+TJ+ETGTBh9nHtusjC1DBYxd6XSNCHkJi8BLjP5NpGOA=="3600
TXT"Dynatrace-site-verification=b3c283b7-dd8c-4938-a4c3-faf7c1d24295__svvbldu9p8ceg0afum4l32dj5m"3600
TXT"Dynatrace-site-verification=f65ac81d-9846-4100-b8e1-59d4ba734a21__mjhajhtgeuvij7fkrjoudrl9t9"3600
TXT"Dynatrace-site-verification=f878653e-4674-41c9-b233-629343406b8a__dsui9v58s7ouaotqqni7b8j92h"3600
TXT"cisco-ci-domain-verification=27059d19cb800043bc73634add57b12174c18bd49dd3bfa46366d296b287a347"3600
TXT"atlassian-domain-verification=24ionyvJGeY4lZpilE1Y7FQrPBwwxklFBliMQj3WucL3s5KfWy9cQrx4dRE1hjO7"3600
TXT"atlassian-domain-verification=E46gtaZGY5Z5hIZ1oT78C8s0sYRNxRaqNYwmyMrDKUrj2FQby8EKl3V0BaSDJ65n"3600
TXT"v=spf1 include:_spf.vmware.com include:_spop.vmware.com include:mktomail.com include:_spf1.vmware.com include:stspg-customer.com include:spf.protection.outlook.com include:aspmx.pardot.com ip4:103.28.42.0/24 ip4:27.126.146.0/24 ip4:146.88.28.0/24 ip4:192." "19.0.0/16 -all"3600
CAA0 issue "amazon.com"3600
CAA0 issue "digicert.com"3600
CAA0 issue "entrust.net"3600
CAA0 issue "globalsign.com"3600
CAA0 issue "letsencrypt.org"3600
CAA0 issuewild "amazon.com"3600
CAA0 issuewild "digicert.com"3600
CAA0 issuewild "entrust.net"3600
CAA0 issuewild "globalsign.com"3600
CAA0 issuewild "letsencrypt.org"3600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (2m30s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 1h; 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: amazon.com, digicert.com, entrust.net, globalsign.com, letsencrypt.org.