markmonitor.com

Checked 22 October 2026, 09:43 UTC · via 8.8.8.8
!Passed with warnings
27 passed 2 warnings 0 failed 2 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2032-04-23

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
23 April 1999
Last changed
18 January 2024
Expires
23 April 2032
Status
client delete prohibited, client transfer prohibited, client update prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
ha2.markmonitor.zone, ha4.markmonitor.zone, ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com, ns7.markmonitor.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 2032-04-23 #3
    The registration is valid until 2032-04-23 (2009 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

pass

ha2.markmonitor.zone, ha4.markmonitor.zone, ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com, ns7.markmonitor.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ha2.markmonitor.zone, ha4.markmonitor.zone, ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com, ns7.markmonitor.com
NS in the zone
ha2.markmonitor.zone, ha4.markmonitor.zone, ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com, ns7.markmonitor.com
NameserverAddressesNetwork (AS)Glue
ha2.markmonitor.zone162.219.54.170 2620:10a:80eb::6bAS55195 CIRA-CLOUD1 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet, CA AS55195 CIRA-CLOUD1 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet, CA-
ha4.markmonitor.zone162.219.55.170 2620:10a:80ec::6bAS394354 CIRA-CLOUD2 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet, CA AS394354 CIRA-CLOUD2 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet, CA-
ns1.markmonitor.com149.112.160.1 2620:10a:80a8::1AS55195 CIRA-CLOUD1 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet, CA AS55195 CIRA-CLOUD1 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet, CA149.112.160.1 2620:10a:80a8::1
ns2.markmonitor.com176.97.158.1 2001:67c:10b8::1AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT176.97.158.1 2001:67c:10b8::1
ns3.markmonitor.com149.112.161.1 2620:10a:80a9::1AS394354 CIRA-CLOUD2 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet, CA AS394354 CIRA-CLOUD2 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet, CA149.112.161.1 2620:10a:80a9::1
ns4.markmonitor.com192.174.68.1 2001:67c:1bc::1AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT192.174.68.1 2001:67c:1bc::1
ns5.markmonitor.com149.112.160.2 2620:10a:80a8::2AS55195 CIRA-CLOUD1 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet, CA AS55195 CIRA-CLOUD1 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet, CA149.112.160.2 2620:10a:80a8::2
ns6.markmonitor.com176.97.158.3 2001:67c:10b8::3AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT176.97.158.3 2001:67c:10b8::3
ns7.markmonitor.com149.112.161.2 2620:10a:80a9::2AS394354 CIRA-CLOUD2 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet, CA AS394354 CIRA-CLOUD2 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet, CA149.112.161.2 2620:10a:80a9::2

Checks

  • ✓ 9 nameservers #6
    Delegated to ha2.markmonitor.zone, ha4.markmonitor.zone, ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com, ns7.markmonitor.com.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com, ns7.markmonitor.com.
  • ✓ 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 6 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS1921 (RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT): 6 addresses; AS394354 (CIRA-CLOUD2 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet, CA): 6 addresses; AS55195 (CIRA-CLOUD1 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet, CA): 6 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .zone.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

18 of 18 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ha2.markmonitor.zone 162.219.54.170NOERROR, 13 ms, authoritativenoyes / yesrefusedCIRA Server
ha2.markmonitor.zone 2620:10a:80eb::6bNOERROR, 14 ms, authoritativenoyes / yesrefusedCIRA Server
ha4.markmonitor.zone 162.219.55.170NOERROR, 4 ms, authoritativenoyes / yesrefusedFRA D-ZONE nameserver
ha4.markmonitor.zone 2620:10a:80ec::6bNOERROR, 6 ms, authoritativenoyes / yesrefusedFRA D-ZONE nameserver
ns1.markmonitor.com 149.112.160.1NOERROR, 15 ms, authoritativenoyes / yesrefusedCIRA Server
ns1.markmonitor.com 2620:10a:80a8::1NOERROR, 15 ms, authoritativenoyes / yesrefusedCIRA Server
ns2.markmonitor.com 176.97.158.1NOERROR, 13 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns2.markmonitor.com 2001:67c:10b8::1NOERROR, 15 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns3.markmonitor.com 149.112.161.1NOERROR, 5 ms, authoritativenoyes / yesrefusedCIRA Server
ns3.markmonitor.com 2620:10a:80a9::1NOERROR, 5 ms, authoritativenoyes / yesrefusedCIRA Server
ns4.markmonitor.com 192.174.68.1NOERROR, 17 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns4.markmonitor.com 2001:67c:1bc::1NOERROR, 17 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns5.markmonitor.com 149.112.160.2NOERROR, 15 ms, authoritativenoyes / yesrefusedCIRA Server
ns5.markmonitor.com 2620:10a:80a8::2NOERROR, 15 ms, authoritativenoyes / yesrefusedCIRA Server
ns6.markmonitor.com 176.97.158.3NOERROR, 15 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns6.markmonitor.com 2001:67c:10b8::3NOERROR, 13 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns7.markmonitor.com 149.112.161.2NOERROR, 5 ms, authoritativenoyes / yesrefusedFRA D-ZONE nameserver
ns7.markmonitor.com 2620:10a:80a9::2NOERROR, 5 ms, authoritativenoyes / yesrefusedFRA D-ZONE nameserver

Checks

  • ✓ All respond #14
    All 18 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: ha2.markmonitor.zone: "CIRA Server"; ha4.markmonitor.zone: "FRA D-ZONE nameserver"; ns1.markmonitor.com: "CIRA Server"; ns2.markmonitor.com: "RcodeZero DNS"; ns3.markmonitor.com: "CIRA Server"; ns4.markmonitor.com: "RcodeZero DNS"; ns5.markmonitor.com: "CIRA Server"; ns6.markmonitor.com: "RcodeZero DNS"; ns7.markmonitor.com: "FRA D-ZONE 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

pass

serial 2026102201 · primary ns1.markmonitor.com

Found

Primary (MNAME)
ns1.markmonitor.com
Contact (RNAME)
hostmaster.markmonitor.com
Serial
2026102201
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
10800 s

Serial per nameserver

NameserverSerial
ha2.markmonitor.zone (162.219.54.170)2026102201
ha2.markmonitor.zone (2620:10a:80eb::6b)2026102201
ha4.markmonitor.zone (162.219.55.170)2026102201
ha4.markmonitor.zone (2620:10a:80ec::6b)2026102201
ns1.markmonitor.com (149.112.160.1)2026102201
ns1.markmonitor.com (2620:10a:80a8::1)2026102201
ns2.markmonitor.com (176.97.158.1)2026102201
ns2.markmonitor.com (2001:67c:10b8::1)2026102201
ns3.markmonitor.com (149.112.161.1)2026102201
ns3.markmonitor.com (2620:10a:80a9::1)2026102201
ns4.markmonitor.com (192.174.68.1)2026102201
ns4.markmonitor.com (2001:67c:1bc::1)2026102201
ns5.markmonitor.com (149.112.160.2)2026102201
ns5.markmonitor.com (2620:10a:80a8::2)2026102201
ns6.markmonitor.com (176.97.158.3)2026102201
ns6.markmonitor.com (2001:67c:10b8::3)2026102201
ns7.markmonitor.com (149.112.161.2)2026102201
ns7.markmonitor.com (2620:10a:80a9::2)2026102201

Checks

  • ✓ Serial 2026102201 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 7d, negative TTL 3h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.markmonitor.com is one of the listed nameservers.
  • ✓ Contact hostmaster@markmonitor.com #25
    The SOA RNAME hostmaster.markmonitor.com means hostmaster@markmonitor.com.
  • ✓ Date-based serial #26
    The serial 2026102201 follows the YYYYMMDDnn convention (2026-10-22).

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

33 records at the apex

Found

Read from
162.219.54.170:53
TypeValueTTL
SOAns1.markmonitor.com. hostmaster.markmonitor.com. 2026102201 10800 3600 604800 10800300
NSns2.markmonitor.com.86400
NSha4.markmonitor.zone.86400
NSns4.markmonitor.com.86400
NSha2.markmonitor.zone.86400
NSns5.markmonitor.com.86400
NSns1.markmonitor.com.86400
NSns3.markmonitor.com.86400
NSns6.markmonitor.com.86400
NSns7.markmonitor.com.86400
A104.18.39.15260
A172.64.148.10460
MX0 markmonitor-com.mail.protection.outlook.com.300
TXT"MS=ms42144968"86400
TXT"MS=ms64044723"86400
TXT"MS=ms72445593"86400
TXT"apple-domain-verification=FX0lMIb10qXybAtV"86400
TXT"logmein-verification-code=ANmgyb4yoduCdzD71JRmCSyp2"86400
TXT"knowbe4-site-verification=2196cd8a72de50eedd7703120b752b77"86400
TXT"onetrust-domain-verification=8fa95c5bed48415db6eff59daea56015"86400
TXT"anthropic-domain-verification-xr4p7r=vm66XcxCsZpsLKCoCSXpk9kVJ"86400
TXT"google-site-verification=E2u1YzHLf2tBYBPtKA53nJJU8CxqvETi9tCgrStrHSE"86400
TXT"google-site-verification=GZUp3F-aoKxu2bX09NyuMPTi-LXAC-qID0GhrRmddog"86400
TXT"google-site-verification=avfMNTcfZbndF_OIvDLsN68e2gYdCy3NWlLmimTCgzQ"86400
TXT"v=spf1 include:spf1.markmonitor.com include:spf2.markmonitor.com -all"86400
TXT"pardot1105752=05d648070e9b5bbc55dad335bec3d2686884b760e15145b02655f8b1fbc275e0"86400
TXT"0DuNVXCw+Ru0wk/l1QQLpIrBqVp0lV/Sq6AYcat5UGoDXbEm3DJi3zGniT7Yc70rlPXm/L96RJ7ZUSH9MTf/tw=="86400
TXT"webexdomainverification.5523f43614297acbe053ab06fc0a5471=b0c2366e-7287-438d-af3f-0c171d193a5e"86400
TXT"atlassian-domain-verification=dR54hdBGcAY38atM4taIqZJLlvlrBCd/n59SadEcujjC/aBmtG1AROhlD5kUGm8q"86400
TXT"figma-domain-verification=2e293493781f666d9f740db6351c2e614e18ca7326ae088750eaef03a268e1e3-1780592319"86400
CAA0 issue "pki.goog"3600
CAA0 issue "digicert.com"3600
CAA0 issue "letsencrypt.org"3600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m). 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: pki.goog, digicert.com, letsencrypt.org.