register.com

Checked 22 October 2026, 10:30 UTC · via 8.8.8.8
!Passed with warnings
24 passed 2 warnings 0 failed 5 info

Registration

info

.com generic · Register.com - Network Solutions, LLC · expires 2028-08-04

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Register.com - Network Solutions, LLC
Registered
1 November 1994
Last changed
2 December 2020
Expires
4 August 2028
Status
client delete prohibited, client transfer prohibited, client update prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
heidi.ns.cloudflare.com, rex.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 2028-08-04 #3
    The registration is valid until 2028-08-04 (652 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

heidi.ns.cloudflare.com, rex.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
heidi.ns.cloudflare.com, rex.ns.cloudflare.com
NS in the zone
heidi.ns.cloudflare.com, rex.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
heidi.ns.cloudflare.com162.159.38.236 172.64.34.236 108.162.194.236 2a06:98c1:50::ac40:22ec 2803:f800:50::6ca2:c2ec 2606:4700:50::a29f:26ecAS13335 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., US108.162.194.236 162.159.38.236 172.64.34.236 2606:4700:50::a29f:26ec 2803:f800:50::6ca2:c2ec 2a06:98c1:50::ac40:22ec
rex.ns.cloudflare.com108.162.195.13 162.159.44.13 172.64.35.13 2606:4700:58::a29f:2c0d 2a06:98c1:50::ac40:230d 2803:f800:50::6ca2:c30dAS13335 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., US108.162.195.13 162.159.44.13 172.64.35.13 2606:4700:58::a29f:2c0d 2803:f800:50::6ca2:c30d 2a06:98c1:50::ac40:230d

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: heidi.ns.cloudflare.com, rex.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
heidi.ns.cloudflare.com 162.159.38.236NOERROR, 32 ms, authoritativenoyes / yesrefused2026.10.2
heidi.ns.cloudflare.com 172.64.34.236NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
heidi.ns.cloudflare.com 108.162.194.236NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
heidi.ns.cloudflare.com 2a06:98c1:50::ac40:22ecNOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
heidi.ns.cloudflare.com 2803:f800:50::6ca2:c2ecNOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
heidi.ns.cloudflare.com 2606:4700:50::a29f:26ecNOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
rex.ns.cloudflare.com 108.162.195.13NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
rex.ns.cloudflare.com 162.159.44.13NOERROR, 32 ms, authoritativenoyes / yesrefused2026.10.2
rex.ns.cloudflare.com 172.64.35.13NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
rex.ns.cloudflare.com 2606:4700:58::a29f:2c0dNOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
rex.ns.cloudflare.com 2a06:98c1:50::ac40:230dNOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
rex.ns.cloudflare.com 2803:f800:50::6ca2:c30dNOERROR, 5 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: heidi.ns.cloudflare.com: "2026.10.2"; rex.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 2417998055 · primary heidi.ns.cloudflare.com

Found

Primary (MNAME)
heidi.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417998055
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
heidi.ns.cloudflare.com (162.159.38.236)2417998055
heidi.ns.cloudflare.com (172.64.34.236)2417998055
heidi.ns.cloudflare.com (108.162.194.236)2417998055
heidi.ns.cloudflare.com (2a06:98c1:50::ac40:22ec)2417998055
heidi.ns.cloudflare.com (2803:f800:50::6ca2:c2ec)2417998055
heidi.ns.cloudflare.com (2606:4700:50::a29f:26ec)2417998055
rex.ns.cloudflare.com (108.162.195.13)2417998055
rex.ns.cloudflare.com (162.159.44.13)2417998055
rex.ns.cloudflare.com (172.64.35.13)2417998055
rex.ns.cloudflare.com (2606:4700:58::a29f:2c0d)2417998055
rex.ns.cloudflare.com (2a06:98c1:50::ac40:230d)2417998055
rex.ns.cloudflare.com (2803:f800:50::6ca2:c30d)2417998055

Checks

  • ✓ Serial 2417998055 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 heidi.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 2417998055 is a Unix timestamp (2046-08-16 02:07 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

13 records at the apex

Found

Read from
162.159.38.236:53
TypeValueTTL
SOAheidi.ns.cloudflare.com. dns.cloudflare.com. 2417998055 10000 2400 604800 18001800
NSheidi.ns.cloudflare.com.86400
NSrex.ns.cloudflare.com.86400
A162.159.135.39300
A162.159.136.39300
MX0 register-com.mail.eo.outlook.com.3600
TXT"MS=ms10832387"300
TXT"MS=ms32923376"300
TXT"facebook-domain-verification=ve27qqe9b9xo0hl0kczky3sxs9teoo"300
TXT"google-site-verification=EaO7gkYr2gTM2BknYLpq5-VVBMmScHQMYcte1DH_5s0"300
TXT"google-site-verification=lPc9ZvInDA7hSTv9k8bLz06jutlU0u2zGSDGghTRhq4"300
TXT"google-site-verification=yfbeYJ98Q02mmnh9hSyevNXH5K3oZG-OPTvpj7y4YbE"300
TXT"v=spf1 ip4:209.17.115.0/24 ip4:209.237.134.0/24 ip4:64.69.208.0/24 ip4:64.69.212.0/24 ip4:64.69.218.0/24 ip4:74.200.28.190 ip4:98.124.246.29 include:spf.protection.outlook.com include:spf.websitewelcome.com -all"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 1h, 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.
  • 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