versiontracker.com

Checked 22 October 2026, 11:21 UTC · via 8.8.8.8
!Passed with warnings
26 passed 2 warnings 0 failed 3 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2027-10-10

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
11 October 1996
Last changed
8 September 2026
Expires
10 October 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
dns1.p09.nsone.net, dns2.p09.nsone.net, dns3.p09.nsone.net, dns4.p09.nsone.net, ns0004.secondary.cloudflare.com, ns0243.secondary.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 2027-10-10 #3
    The registration is valid until 2027-10-10 (352 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

pass

dns1.p09.nsone.net, dns2.p09.nsone.net, dns3.p09.nsone.net, dns4.p09.nsone.net, ns0004.secondary.cloudflare.com, ns0243.secondary.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
dns1.p09.nsone.net, dns2.p09.nsone.net, dns3.p09.nsone.net, dns4.p09.nsone.net, ns0004.secondary.cloudflare.com, ns0243.secondary.cloudflare.com
NS in the zone
dns1.p09.nsone.net, dns2.p09.nsone.net, dns3.p09.nsone.net, dns4.p09.nsone.net, ns0004.secondary.cloudflare.com, ns0243.secondary.cloudflare.com
NameserverAddressesNetwork (AS)Glue
dns1.p09.nsone.net198.51.44.9 2620:4d:4000:6259:7:9:0:1AS62597 NSONE - NSONE Inc, US AS62597 NSONE - NSONE Inc, US-
dns2.p09.nsone.net198.51.45.9 2a00:edc0:6259:7:9::2AS62597 NSONE - NSONE Inc, US AS62597 NSONE - NSONE Inc, US-
dns3.p09.nsone.net198.51.44.73 2620:4d:4000:6259:7:9:0:3AS62597 NSONE - NSONE Inc, US AS62597 NSONE - NSONE Inc, US-
dns4.p09.nsone.net198.51.45.73 2a00:edc0:6259:7:9::4AS62597 NSONE - NSONE Inc, US AS62597 NSONE - NSONE Inc, US-
ns0004.secondary.cloudflare.com162.159.32.5 2606:4700:51::a29f:2005AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US162.159.32.5 2606:4700:51::a29f:2005
ns0243.secondary.cloudflare.com162.159.33.118 2606:4700:59::a29f:2176AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US162.159.33.118 2606:4700:59::a29f:2176

Checks

  • ✓ 6 nameservers #6
    Delegated to dns1.p09.nsone.net, dns2.p09.nsone.net, dns3.p09.nsone.net, dns4.p09.nsone.net, ns0004.secondary.cloudflare.com, ns0243.secondary.cloudflare.com.
  • ✓ 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.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 4 addresses; AS62597 (NSONE - NSONE Inc, US): 8 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .net.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

warn

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns1.p09.nsone.net 198.51.44.9NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns1.p09.nsone.net 2620:4d:4000:6259:7:9:0:1NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns2.p09.nsone.net 198.51.45.9NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns2.p09.nsone.net 2a00:edc0:6259:7:9::2NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns3.p09.nsone.net 198.51.44.73NOERROR, 6 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns3.p09.nsone.net 2620:4d:4000:6259:7:9:0:3NOERROR, 6 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns4.p09.nsone.net 198.51.45.73NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns4.p09.nsone.net 2a00:edc0:6259:7:9::4NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
ns0004.secondary.cloudflare.com 162.159.32.5NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
ns0004.secondary.cloudflare.com 2606:4700:51::a29f:2005NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
ns0243.secondary.cloudflare.com 162.159.33.118NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
ns0243.secondary.cloudflare.com 2606:4700:59::a29f:2176NOERROR, 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: ns0004.secondary.cloudflare.com: "2026.10.2"; ns0243.secondary.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 1620685027 · primary dns1.p09.nsone.net

Found

Primary (MNAME)
dns1.p09.nsone.net
Contact (RNAME)
hostmaster.nsone.net
Serial
1620685027
Refresh / retry
43200 s / 7200 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
dns1.p09.nsone.net (198.51.44.9)1620685027
dns1.p09.nsone.net (2620:4d:4000:6259:7:9:0:1)1620685027
dns2.p09.nsone.net (198.51.45.9)1620685027
dns2.p09.nsone.net (2a00:edc0:6259:7:9::2)1620685027
dns3.p09.nsone.net (198.51.44.73)1620685027
dns3.p09.nsone.net (2620:4d:4000:6259:7:9:0:3)1620685027
dns4.p09.nsone.net (198.51.45.73)1620685027
dns4.p09.nsone.net (2a00:edc0:6259:7:9::4)1620685027
ns0004.secondary.cloudflare.com (162.159.32.5)1620685027
ns0004.secondary.cloudflare.com (2606:4700:51::a29f:2005)1620685027
ns0243.secondary.cloudflare.com (162.159.33.118)1620685027
ns0243.secondary.cloudflare.com (2606:4700:59::a29f:2176)1620685027

Checks

  • ✓ Serial 1620685027 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 12h, retry 2h, expire 14d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns1.p09.nsone.net is one of the listed nameservers.
  • ✓ Contact hostmaster@nsone.net #25
    The SOA RNAME hostmaster.nsone.net means hostmaster@nsone.net.
  • ✓ Timestamp serial #26
    The serial 1620685027 is a Unix timestamp (2021-05-10 22:17 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

12 records at the apex

Found

Read from
198.51.44.9:53
TypeValueTTL
SOAdns1.p09.nsone.net. hostmaster.nsone.net. 1620685027 43200 7200 1209600 36003600
NSdns1.p09.nsone.net.3600
NSdns2.p09.nsone.net.3600
NSdns3.p09.nsone.net.3600
NSdns4.p09.nsone.net.3600
NSns0004.secondary.cloudflare.com.3600
NSns0243.secondary.cloudflare.com.3600
A64.30.224.10186400
MX0 mxa-00262c01.gslb.pphosted.com.300
MX0 mxb-00262c01.gslb.pphosted.com.300
TXT"google-site-verification:50rs3XcBu2h6ZRTDqAdP4_ocKK02T9l9Gkqc0Vs3o_o"86400
TXT"v=spf1 mx ip4:64.30.227.218 ip4:64.30.226.54/31 ip4:74.125.148.0/22 ip4:216.239.125.28/23 ip4:202.73.54.176/28 ip4:58.65.7.128/28 ip4:62.108.138.0/28 ip4:216.239.114.214/23 ip4:216.239.114.222/23include:_spf.google.com include:spf-00262c01.pphosted.com -a" "ll"86400

Checks

  • ✓ TTLs within range #32
    TTLs: A 1d, MX 5m, NS 1h. The NS TTL at the parent is 2d and in the zone 1h; resolvers may use either.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • 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