wtatennis.com

Checked 22 October 2026, 11:33 UTC · via 8.8.8.8
!Passed with warnings
24 passed 3 warnings 0 failed 4 info

Registration

info

.com generic · Network Solutions, LLC · expires 2029-05-30

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Network Solutions, LLC
Registered
30 May 2000
Last changed
27 May 2026
Expires
30 May 2029
Status
client transfer prohibited
Registry nameservers
ns35.worldnic.com, ns36.worldnic.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 2029-05-30 #3
    The registration is valid until 2029-05-30 (951 days).
  • ✓ Transfer locked #4
    Registry status: client transfer prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

warn

ns35.worldnic.com, ns36.worldnic.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns35.worldnic.com, ns36.worldnic.com
NS in the zone
ns35.worldnic.com, ns36.worldnic.com
NameserverAddressesNetwork (AS)Glue
ns35.worldnic.com162.159.26.212AS13335 CLOUDFLARENET - Cloudflare, Inc., US162.159.26.212
ns36.worldnic.com162.159.27.146AS13335 CLOUDFLARENET - Cloudflare, Inc., US162.159.27.146

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns35.worldnic.com, ns36.worldnic.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 2 IPv4 /24s and 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 2 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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

warn

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns35.worldnic.com 162.159.26.212NOERROR, 135 ms, authoritativenoyes / yesrefused2026.10.8
ns36.worldnic.com 162.159.27.146NOERROR, 133 ms, authoritativenoyes / yesrefused2026.10.8

Checks

  • ✓ All respond #14
    All 2 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: ns35.worldnic.com: "2026.10.8"; ns36.worldnic.com: "2026.10.8". 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 126092108 · primary ns35.worldnic.com

Found

Primary (MNAME)
ns35.worldnic.com
Contact (RNAME)
namehost.worldnic.com
Serial
126092108
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns35.worldnic.com (162.159.26.212)126092108
ns36.worldnic.com (162.159.27.146)126092108

Checks

  • ✓ Serial 126092108 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 7d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns35.worldnic.com is one of the listed nameservers.
  • ✓ Contact namehost@worldnic.com #25
    The SOA RNAME namehost.worldnic.com means namehost@worldnic.com.
  • ✓ Counter serial #26
    The serial 126092108 is a plain counter.

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

pass

22 records at the apex

Found

Read from
162.159.26.212:53
TypeValueTTL
SOANS35.WORLDNIC.com. namehost.WORLDNIC.com. 126092108 10800 3600 604800 36007200
NSns36.worldnic.com.7200
NSns35.worldnic.com.7200
A76.223.62.79900
A13.248.177.213900
MX0 wtatennis-com.mail.protection.outlook.com.3600
TXT"onetrust-domain-verification=109adf38dbf24fcfb7f0f72fd52e9032"7200
TXT"v=spf1 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com include:mailgun.org include:mail.zendesk.com include:sparkpostmail.com include:relay.bswift.com ip4:72.15.248.174 ip4:52.210.6.97 ip4:83.244.235.84 ip4:107.20.210.250 ip4:52.1.14.157 i" "p4:107.23.16.222 ip4:54.173.83.138 ip4:149.72.25.96 ip4:97.76.89.190 -all"3600
TXT"docusign=ad9da533-e6d4-49bf-8842-8e566e20e806"3600
TXT"google-site-verification=GfJo8YAq0dPJvE33PDPjEHhlM2ecbQll_0RWjfWh7j4"3600
TXT"zcmlxy62nf1h3fpbdhvzpy1gjnyvj3ql"7200
TXT"adobe-idp-site-verification=b2ef32d97e611a111c77eea7765d26eee15235245d3a4c269183e1e98998e330"900
TXT"postman-domain-verification=46fdb30e6da046ae6585aa057277b6dac73552645b9649c18f6981a90a359dab70ecbbc873d0cdd273055e66c978f8e6ab4d39d8119fe2c6be7a5bd4d710590f"900
TXT"atlassian-domain-verification=9fO8Q/Fm9WUws3eBPOIw1t5cTPMgek80NhRq//bd3INQBvaZ9F1lVzMvO3A5fOVO"3600
TXT"ZOOM_verify_7uiAXS7tC2Jxih9mk8Z4Zh"3600
TXT"apple-domain-verification=soXYS1kayY8zJ7SX"14400
TXT"google-site-verification=bRgMC4xYn-0lum5AZKUCE9YS84RiBMBYGjWlLhGNTOw"900
CAA0 issuewild "digicert.com"7200
CAA0 issue "digicert.com"7200
CAA0 issue "amazonaws.com"7200
CAA0 issue "pki.goog"900
CAA0 issue "letsencrypt.org"7200

Checks

  • ✓ TTLs within range #32
    TTLs: A 15m, MX 1h, NS 2h. The NS TTL at the parent is 2d and in the zone 2h; 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: digicert.com, amazonaws.com, pki.goog, letsencrypt.org.