topendsports.com

Checked 22 October 2026, 11:11 UTC · via 8.8.8.8
!Passed with warnings
27 passed 2 warnings 0 failed 5 info

Registration

info

.com generic · Internet Domain Service BS Corp · expires 2032-03-17

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Internet Domain Service BS Corp
Registered
17 March 2001
Last changed
12 October 2026
Expires
17 March 2032
Status
client transfer prohibited
Registry nameservers
carter.ns.cloudflare.com, laura.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 2032-03-17 #3
    The registration is valid until 2032-03-17 (1972 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

info

carter.ns.cloudflare.com, laura.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
carter.ns.cloudflare.com, laura.ns.cloudflare.com
NS in the zone
carter.ns.cloudflare.com, laura.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
carter.ns.cloudflare.com108.162.193.80 172.64.33.80 173.245.59.80 2803:f800:50::6ca2:c150 2a06:98c1:50::ac40:2150 2606:4700:58::adf5:3b50AS13335 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., US108.162.193.80 172.64.33.80 173.245.59.80 2606:4700:58::adf5:3b50 2803:f800:50::6ca2:c150 2a06:98c1:50::ac40:2150
laura.ns.cloudflare.com172.64.32.183 108.162.192.183 173.245.58.183 2803:f800:50::6ca2:c0b7 2a06:98c1:50::ac40:20b7 2606:4700:50::adf5:3ab7AS13335 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., US108.162.192.183 172.64.32.183 173.245.58.183 2606:4700:50::adf5:3ab7 2803:f800:50::6ca2:c0b7 2a06:98c1:50::ac40:20b7

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: carter.ns.cloudflare.com, laura.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
carter.ns.cloudflare.com 108.162.193.80NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
carter.ns.cloudflare.com 172.64.33.80NOERROR, 8 ms, authoritativenoyes / yesrefused2026.10.2
carter.ns.cloudflare.com 173.245.59.80NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
carter.ns.cloudflare.com 2803:f800:50::6ca2:c150NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
carter.ns.cloudflare.com 2a06:98c1:50::ac40:2150NOERROR, 8 ms, authoritativenoyes / yesrefused2026.10.2
carter.ns.cloudflare.com 2606:4700:58::adf5:3b50NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
laura.ns.cloudflare.com 172.64.32.183NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
laura.ns.cloudflare.com 108.162.192.183NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
laura.ns.cloudflare.com 173.245.58.183NOERROR, 7 ms, authoritativenoyes / yesrefused2026.10.2
laura.ns.cloudflare.com 2803:f800:50::6ca2:c0b7NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
laura.ns.cloudflare.com 2a06:98c1:50::ac40:20b7NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
laura.ns.cloudflare.com 2606:4700:50::adf5:3ab7NOERROR, 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: carter.ns.cloudflare.com: "2026.10.2"; laura.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 2417085029 · primary carter.ns.cloudflare.com

Found

Primary (MNAME)
carter.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417085029
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
carter.ns.cloudflare.com (108.162.193.80)2417085029
carter.ns.cloudflare.com (172.64.33.80)2417085029
carter.ns.cloudflare.com (173.245.59.80)2417085029
carter.ns.cloudflare.com (2803:f800:50::6ca2:c150)2417085029
carter.ns.cloudflare.com (2a06:98c1:50::ac40:2150)2417085029
carter.ns.cloudflare.com (2606:4700:58::adf5:3b50)2417085029
laura.ns.cloudflare.com (172.64.32.183)2417085029
laura.ns.cloudflare.com (108.162.192.183)2417085029
laura.ns.cloudflare.com (173.245.58.183)2417085029
laura.ns.cloudflare.com (2803:f800:50::6ca2:c0b7)2417085029
laura.ns.cloudflare.com (2a06:98c1:50::ac40:20b7)2417085029
laura.ns.cloudflare.com (2606:4700:50::adf5:3ab7)2417085029

Checks

  • ✓ Serial 2417085029 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 carter.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 2417085029 is a Unix timestamp (2046-08-05 12:30 UTC).

DNSSEC

warn

Signed, but no DS at parent

Found

Validated by resolver
no
Denial of existence
NSEC
Signatures valid until
23 October 2026

DNSKEY in the zone

Key tagRoleAlgorithm
2371KSK (257)ECDSAP256SHA256 (13)
34505ZSK (256)ECDSAP256SHA256 (13)

Checks

  • !
    Signed but not delegated securely
    The zone is signed but the parent has no DS record, so the signatures are not used. Publish the DS record at your registrar.
    #27
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 50h0m0s and created on demand; the current one was made at 2026-10-21 10:11 UTC and expires at 2026-10-23 12:11 UTC.
  • i
    NSEC
    The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.
    #31

Records

pass

22 records at the apex

Found

Read from
108.162.193.80:53
TypeValueTTL
SOAcarter.ns.cloudflare.com. dns.cloudflare.com. 2417085029 10000 2400 604800 18001800
NScarter.ns.cloudflare.com.86400
NSlaura.ns.cloudflare.com.86400
A172.64.151.187300
A104.18.36.69300
AAAA2a06:98c1:3109::6812:2445300
AAAA2606:4700:4403::ac40:97bb300
MX0 topendsports-com.mail.protection.outlook.com.3600
TXT"MS=ms57187695"300
TXT"Sendinblue-code:b81299e6761fd3e7cd38078582cc8a3e"300
TXT"google-site-verification=vSKIwQ8iu99s8OnjF2zM-oS0Tuj_UDppaFVXSpZKvy8"300
TXT"v=spf1 include:spf.protection.outlook.com ~all"300
CAA0 issue "comodoca.com"3600
CAA0 issue "digicert.com; cansignhttpexchanges=yes"3600
CAA0 issue "letsencrypt.org"3600
CAA0 issue "pki.goog; cansignhttpexchanges=yes"3600
CAA0 issue "ssl.com"3600
CAA0 issuewild "comodoca.com"3600
CAA0 issuewild "digicert.com; cansignhttpexchanges=yes"3600
CAA0 issuewild "letsencrypt.org"3600
CAA0 issuewild "pki.goog; cansignhttpexchanges=yes"3600
CAA0 issuewild "ssl.com"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com.