iab.com

Checked 22 October 2026, 09:14 UTC · via 8.8.8.8
!Passed with warnings
24 passed 2 warnings 0 failed 5 info

Registration

info

.com generic · GoDaddy.com, LLC · expires 2031-02-03

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
GoDaddy.com, LLC
Registered
2 February 1995
Last changed
10 February 2026
Expires
3 February 2031
Status
client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited
Registry nameservers
coen.ns.cloudflare.com, nelly.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 2031-02-03 #3
    The registration is valid until 2031-02-03 (1564 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client renew 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

info

coen.ns.cloudflare.com, nelly.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
coen.ns.cloudflare.com, nelly.ns.cloudflare.com
NS in the zone
coen.ns.cloudflare.com, nelly.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
coen.ns.cloudflare.com162.159.44.151 108.162.195.151 172.64.35.151 2803:f800:50::6ca2:c397 2606:4700:58::a29f:2c97 2a06:98c1:50::ac40:2397AS13335 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., US108.162.195.151 162.159.44.151 172.64.35.151 2606:4700:58::a29f:2c97 2803:f800:50::6ca2:c397 2a06:98c1:50::ac40:2397
nelly.ns.cloudflare.com172.64.32.209 108.162.192.209 173.245.58.209 2606:4700:50::adf5:3ad1 2803:f800:50::6ca2:c0d1 2a06:98c1:50::ac40:20d1AS13335 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., US108.162.192.209 172.64.32.209 173.245.58.209 2606:4700:50::adf5:3ad1 2803:f800:50::6ca2:c0d1 2a06:98c1:50::ac40:20d1

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: coen.ns.cloudflare.com, nelly.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
coen.ns.cloudflare.com 162.159.44.151NOERROR, 33 ms, authoritativenoyes / yesrefused2026.10.2
coen.ns.cloudflare.com 108.162.195.151NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
coen.ns.cloudflare.com 172.64.35.151NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
coen.ns.cloudflare.com 2803:f800:50::6ca2:c397NOERROR, 20 ms, authoritativenoyes / yesrefused2026.10.2
coen.ns.cloudflare.com 2606:4700:58::a29f:2c97NOERROR, 19 ms, authoritativenoyes / yesrefused2026.10.2
coen.ns.cloudflare.com 2a06:98c1:50::ac40:2397NOERROR, 19 ms, authoritativenoyes / yesrefused2026.10.2
nelly.ns.cloudflare.com 172.64.32.209NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
nelly.ns.cloudflare.com 108.162.192.209NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
nelly.ns.cloudflare.com 173.245.58.209NOERROR, 17 ms, authoritativenoyes / yesrefused2026.10.2
nelly.ns.cloudflare.com 2606:4700:50::adf5:3ad1NOERROR, 18 ms, authoritativenoyes / yesrefused2026.10.2
nelly.ns.cloudflare.com 2803:f800:50::6ca2:c0d1NOERROR, 18 ms, authoritativenoyes / yesrefused2026.10.2
nelly.ns.cloudflare.com 2a06:98c1:50::ac40:20d1NOERROR, 18 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: coen.ns.cloudflare.com: "2026.10.2"; nelly.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 2417901844 · primary coen.ns.cloudflare.com

Found

Primary (MNAME)
coen.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417901844
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
coen.ns.cloudflare.com (162.159.44.151)2417901844
coen.ns.cloudflare.com (108.162.195.151)2417901844
coen.ns.cloudflare.com (172.64.35.151)2417901844
coen.ns.cloudflare.com (2803:f800:50::6ca2:c397)2417901844
coen.ns.cloudflare.com (2606:4700:58::a29f:2c97)2417901844
coen.ns.cloudflare.com (2a06:98c1:50::ac40:2397)2417901844
nelly.ns.cloudflare.com (172.64.32.209)2417901844
nelly.ns.cloudflare.com (108.162.192.209)2417901844
nelly.ns.cloudflare.com (173.245.58.209)2417901844
nelly.ns.cloudflare.com (2606:4700:50::adf5:3ad1)2417901844
nelly.ns.cloudflare.com (2803:f800:50::6ca2:c0d1)2417901844
nelly.ns.cloudflare.com (2a06:98c1:50::ac40:20d1)2417901844

Checks

  • ✓ Serial 2417901844 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 coen.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 2417901844 is a Unix timestamp (2046-08-14 23:24 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

21 records at the apex

Found

Read from
162.159.44.151:53
TypeValueTTL
SOAcoen.ns.cloudflare.com. dns.cloudflare.com. 2417901844 10000 2400 604800 18001800
NScoen.ns.cloudflare.com.86400
NSnelly.ns.cloudflare.com.86400
A104.26.6.228300
A104.26.7.228300
A172.67.72.9300
AAAA2606:4700:20::681a:7e4300
AAAA2606:4700:20::681a:6e4300
AAAA2606:4700:20::ac43:4809300
MX0 d296737a.ess.barracudanetworks.com.300
MX10 d296737b.ess.barracudanetworks.com.300
TXT"00Dj0000001ru7G=1TBQm00000001Ab"300
TXT"MS=ms68482173"300
TXT"ZOOM_verify_0rzqtamDTFK9f-XMdnKHnA"300
TXT"amazonses:B2Lr6x7V5rvjEsOq9sxI5hNBy2SgVIWCHt14FhjT2yk="300
TXT"docusign=0d59ac60-0f65-453f-b4ee-98c987448afc"300
TXT"google-site-verification=UN6rFz5XnTGdOHCHH_DnMqS3Nn9uoszPJpnriQBYD4Y"300
TXT"google-site-verification=wVKS1BJlN8i8qC83u2uKgCo5V-pgmhFezHBqoQq2qew"300
TXT"openai-domain-verification=dv-PDOy5kAEKLN9b0T1mM3rLpmF"300
TXT"uO/wwWf4bxbzCX0ykY4ZKbh6bi9C7lMAYhqnfQ+6emno6uENpB0EIBMkEwnJBljmyCeprz9H8WRcyaJWjHI2AQ=="300
TXT"v=spf1 a ip4:65.98.62.152/29 ip4:50.31.57.0/29 include:spf.ess.barracudanetworks.com include:amazonses.com include:spf.protection.outlook.com include:mail.zendesk.com include:sendgrid.net include:_spf.hubspotemail.net include:spf.smtp2go.com -all"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.
  • 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