sportngin.com

Checked 22 October 2026, 10:50 UTC · via 8.8.8.8
!Passed with warnings
20 passed 4 warnings 0 failed 7 info

Registration

info

.com generic · Amazon Registrar, Inc. · expires 2028-04-03

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Amazon Registrar, Inc.
Registered
26 May 2009
Last changed
24 September 2026
Expires
3 April 2028
Status
client transfer prohibited
Registry nameservers
ns1.tstserver.com, ns2.tstserver.com, ns3.tstserver.com, ns4.tstserver.com, ns5.tstserver.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 2028-04-03 #3
    The registration is valid until 2028-04-03 (529 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

ns1.tstserver.com, ns2.tstserver.com, ns3.tstserver.com, ns4.tstserver.com, ns5.tstserver.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.tstserver.com, ns2.tstserver.com, ns3.tstserver.com, ns4.tstserver.com, ns5.tstserver.com
NS in the zone
ns1.tstserver.com, ns2.tstserver.com, ns3.tstserver.com, ns4.tstserver.com, ns5.tstserver.com
NameserverAddressesNetwork (AS)Glue
ns1.tstserver.com208.80.124.2AS16552 DIGICERT - Tiggee LLC, US208.80.124.2
ns2.tstserver.com208.80.126.2AS16552 DIGICERT - Tiggee LLC, US208.80.126.2
ns3.tstserver.com208.80.125.2AS16552 DIGICERT - Tiggee LLC, US208.80.125.2
ns4.tstserver.com208.80.127.2AS16552 DIGICERT - Tiggee LLC, US208.80.127.2
ns5.tstserver.com208.94.148.2AS16552 DIGICERT - Tiggee LLC, US208.94.148.2

Checks

  • ✓ 5 nameservers #6
    Delegated to ns1.tstserver.com, ns2.tstserver.com, ns3.tstserver.com, ns4.tstserver.com, ns5.tstserver.com.
  • ✓ 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 5 IPv4 /24s and 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS16552 (DIGICERT - Tiggee LLC, US): 5 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

info

5 of 5 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.tstserver.com 208.80.124.2NOERROR, 3 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns2.tstserver.com 208.80.126.2NOERROR, 3 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns3.tstserver.com 208.80.125.2NOERROR, 3 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns4.tstserver.com 208.80.127.2NOERROR, 3 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns5.tstserver.com 208.94.148.2NOERROR, 3 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast

Checks

  • ✓ All respond #14
    All 5 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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns1.tstserver.com: "DNS Made Easy Anycast"; ns2.tstserver.com: "DNS Made Easy Anycast"; ns3.tstserver.com: "DNS Made Easy Anycast"; ns4.tstserver.com: "DNS Made Easy Anycast"; ns5.tstserver.com: "DNS Made Easy Anycast".
    #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

warn

serial 2009010373 · primary ns10.digicertdns.com

Found

Primary (MNAME)
ns10.digicertdns.com
Contact (RNAME)
dns.digicertdns.com
Serial
2009010373
Refresh / retry
43200 s / 3600 s
Expire
1209600 s
Negative TTL
180 s

Serial per nameserver

NameserverSerial
ns1.tstserver.com (208.80.124.2)2009010373
ns2.tstserver.com (208.80.126.2)2009010373
ns3.tstserver.com (208.80.125.2)2009010373
ns4.tstserver.com (208.80.127.2)2009010373
ns5.tstserver.com (208.94.148.2)2009010373

Checks

  • ✓ Serial 2009010373 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    negative caching TTL (minimum) 3m is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 12h, retry 1h, expire 14d, negative TTL 3m.
    #23
  • i
    Hidden master
    The primary nameserver ns10.digicertdns.com is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.
    #24
  • ✓ Contact dns@digicertdns.com #25
    The SOA RNAME dns.digicertdns.com means dns@digicertdns.com.
  • ✓ Date-based serial #26
    The serial 2009010373 follows the YYYYMMDDnn convention (2009-01-03).

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

30 records at the apex

Found

Read from
208.80.124.2:53
TypeValueTTL
SOAns10.digicertdns.com. dns.digicertdns.com. 2009010373 43200 3600 1209600 18086400
NSns2.tstserver.com.86400
NSns1.tstserver.com.86400
NSns5.tstserver.com.86400
NSns4.tstserver.com.86400
NSns3.tstserver.com.86400
A104.16.222.243300
A104.16.223.243300
MX10 mxa-00a17301.gslb.pphosted.com.60
MX20 mx0a-00a17301.pphosted.com.60
MX10 mxb-00a17301.gslb.pphosted.com.60
MX20 mx0b-00a17301.pphosted.com.60
TXT"72IA47155F8Q8753LB2N0P3TBD"60
TXT"smartsheet-site-validation=70POa6rDqUpzRv6SAg2Hinxel1VUPrO1"60
TXT"mongodb-site-verification=45MW1XFJ5tSDIZWUdrAB8wHs2DeTG9Ms"60
TXT"ca3-cae7db41a0ac4c55a50f555e20b1394c"60
TXT"v=spf1 include:spf-00a17301.pphosted.com include:mailgun.org include:sendgrid.net include:mktomail.com include:amazonses.com include:_spf.salesforce.com ~all"60
TXT"MS=ms91175295"60
TXT"stripe-verification=4a479e8fedfb11858d60ce22d0ab5b1e3404196191e35645278e2ff4fa49bc22"60
TXT"ohc0otvmnind9k3k53u7c37bg2"60
TXT"BXOCMPRQG"60
TXT"f2jm1kv971uk1orkck3j03b9q0"60
TXT"5bdfmrb2j29urk7dm92om9ohb3"60
TXT"9mturehbfer9s8i0t5kfnulkor"60
TXT"a:mx0a-00176a04.pphosted.com"60
TXT"_globalsign-domain-verification=16aKJufSrMKbcCAKCXzVC4PbCHEMl2CuparSiVEdN9"60
TXT"ca3-52b34a8f3d864848a8f0ab45fca090af"60
TXT"google-site-verification=bxJ141mRYcvt7fB82LWFNk8DIDjA__mRYeZI07LDHe0"60
TXT"apple-domain-verification=uRJ2JsUaEdSLlUfh"60
TXT"atlassian-domain-verification=juq360n3mZQbtzL1m/fIm8XhW5JzSecbgusudHt2wnafV6MTAUAzFWxDproMS5AV"60

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: MX (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.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • 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