ranker.com

Checked 22 October 2026, 10:24 UTC · via 8.8.8.8
!Passed with warnings
23 passed 3 warnings 0 failed 5 info

Registration

info

.com generic · GoDaddy.com, LLC · expires 2027-04-08

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
GoDaddy.com, LLC
Registered
8 April 2000
Last changed
8 April 2025
Expires
8 April 2027
Status
client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited
Registry nameservers
elsa.ns.cloudflare.com, ian.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 2027-04-08 #3
    The registration is valid until 2027-04-08 (167 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

elsa.ns.cloudflare.com, ian.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
elsa.ns.cloudflare.com, ian.ns.cloudflare.com
NS in the zone
elsa.ns.cloudflare.com, ian.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
elsa.ns.cloudflare.com173.245.58.111 108.162.192.111 172.64.32.111 2606:4700:50::adf5:3a6f 2a06:98c1:50::ac40:206f 2803:f800:50::6ca2:c06fAS13335 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., US108.162.192.111 172.64.32.111 173.245.58.111 2606:4700:50::adf5:3a6f 2803:f800:50::6ca2:c06f 2a06:98c1:50::ac40:206f
ian.ns.cloudflare.com172.64.33.118 108.162.193.118 173.245.59.118 2a06:98c1:50::ac40:2176 2803:f800:50::6ca2:c176 2606:4700:58::adf5:3b76AS13335 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., US108.162.193.118 172.64.33.118 173.245.59.118 2606:4700:58::adf5:3b76 2803:f800:50::6ca2:c176 2a06:98c1:50::ac40:2176

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: elsa.ns.cloudflare.com, ian.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
elsa.ns.cloudflare.com 173.245.58.111NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
elsa.ns.cloudflare.com 108.162.192.111NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
elsa.ns.cloudflare.com 172.64.32.111NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
elsa.ns.cloudflare.com 2606:4700:50::adf5:3a6fNOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
elsa.ns.cloudflare.com 2a06:98c1:50::ac40:206fNOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
elsa.ns.cloudflare.com 2803:f800:50::6ca2:c06fNOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
ian.ns.cloudflare.com 172.64.33.118NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ian.ns.cloudflare.com 108.162.193.118NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ian.ns.cloudflare.com 173.245.59.118NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ian.ns.cloudflare.com 2a06:98c1:50::ac40:2176NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ian.ns.cloudflare.com 2803:f800:50::6ca2:c176NOERROR, 7 ms, authoritativenoyes / yesrefused2026.10.2
ian.ns.cloudflare.com 2606:4700:58::adf5:3b76NOERROR, 9 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: elsa.ns.cloudflare.com: "2026.10.2"; ian.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 2417964446 · primary elsa.ns.cloudflare.com

Found

Primary (MNAME)
elsa.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417964446
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
elsa.ns.cloudflare.com (173.245.58.111)2417964446
elsa.ns.cloudflare.com (108.162.192.111)2417964446
elsa.ns.cloudflare.com (172.64.32.111)2417964446
elsa.ns.cloudflare.com (2606:4700:50::adf5:3a6f)2417964446
elsa.ns.cloudflare.com (2a06:98c1:50::ac40:206f)2417964446
elsa.ns.cloudflare.com (2803:f800:50::6ca2:c06f)2417964446
ian.ns.cloudflare.com (172.64.33.118)2417964446
ian.ns.cloudflare.com (108.162.193.118)2417964446
ian.ns.cloudflare.com (173.245.59.118)2417964446
ian.ns.cloudflare.com (2a06:98c1:50::ac40:2176)2417964446
ian.ns.cloudflare.com (2803:f800:50::6ca2:c176)2417964446
ian.ns.cloudflare.com (2606:4700:58::adf5:3b76)2417964446

Checks

  • ✓ Serial 2417964446 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 elsa.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 2417964446 is a Unix timestamp (2046-08-15 16:47 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

26 records at the apex

Found

Read from
173.245.58.111:53
TypeValueTTL
SOAelsa.ns.cloudflare.com. dns.cloudflare.com. 2417964446 10000 2400 604800 18001800
NSelsa.ns.cloudflare.com.86400
NSian.ns.cloudflare.com.86400
A151.101.3.1160
A151.101.131.1160
A151.101.195.1160
A151.101.67.1160
MX1 aspmx.l.google.com.300
MX10 alt3.aspmx.googlemail.com.300
MX10 alt4.aspmx.googlemail.com.300
MX5 alt1.aspmx.l.google.com.300
MX5 alt2.aspmx.l.google.com.300
TXT"5931c6cbe5d34a8ba3e3df1f6df54354"120
TXT"_globalsign-domain-verification=R1bvWDvJUF1gpXlmc7Q3deFwpZciil5dpJR4t-a8XM"120
TXT"_globalsign-domain-verification=SQONiBgTxRVzPPtIHjei_IUGCiAa0KxoVWFw1QfVes"120
TXT"_globalsign-domain-verification=mgS7wKROK2_MMsG_5_Qd4dKIGuTLXbCuOEHzfFAaDu"120
TXT"apple-domain-verification=edykha2YhibLXlct"120
TXT"atlassian-domain-verification=aue17bMlckop0yJT92alkaO3fRnBcGpjLxQiPPC6axDLkPXu-1N6fjs2IsMlNJlq"120
TXT"facebook-domain-verification=w5xu8gdevyd7v4wqvm9qibon7dvhh5"120
TXT"globalsign-domain-verification=8frsHcE2ag-0ccaaP5BTpPmUJC8ob8pdjDQchfAWzD"120
TXT"google-site-verification=DuJOGvTjO_yyqB6rGW6lzOOqUE-o_xLhfQeBHf415fQ"120
TXT"google-site-verification=_XSw0m_pkesvita5g68cVTl9GIDfvUlj8AkaoJ-M1B8"120
TXT"google-site-verification=jqHABK4Jkg-lEBRepYp99T1QQQXCC26kLj6yPjYZEeg"120
TXT"qp53mbb5h00qmj19w91jz0g3wrs5j0zv"120
TXT"v=spf1 ip4:173.193.210.57 include:_spf.google.com include:aspmx.sailthru.com -all"120
TXT"yahoo-verification-key=zlsEByKn+Okxqt7fH1B8SKCIxyH/QUT8UFt7q6imi6k="120

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.
  • 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