spartan.com

Checked 22 October 2026, 10:46 UTC · via 8.8.8.8
!Passed with warnings
26 passed 2 warnings 0 failed 3 info

Registration

info

.com generic · Key-Systems GmbH · expires 2027-02-27

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Key-Systems GmbH
Registered
5 May 1994
Last changed
26 January 2026
Expires
27 February 2027
Status
client transfer prohibited
Registry nameservers
ns-1112.awsdns-11.org, ns-2006.awsdns-58.co.uk, ns-275.awsdns-34.com, ns-664.awsdns-19.net
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 2027-02-27 #3
    The registration is valid until 2027-02-27 (127 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

ns-1112.awsdns-11.org, ns-2006.awsdns-58.co.uk, ns-275.awsdns-34.com, ns-664.awsdns-19.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1112.awsdns-11.org, ns-2006.awsdns-58.co.uk, ns-275.awsdns-34.com, ns-664.awsdns-19.net
NS in the zone
ns-1112.awsdns-11.org, ns-2006.awsdns-58.co.uk, ns-275.awsdns-34.com, ns-664.awsdns-19.net
NameserverAddressesNetwork (AS)Glue
ns-1112.awsdns-11.org205.251.196.88 2600:9000:5304:5800::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-2006.awsdns-58.co.uk205.251.199.214 2600:9000:5307:d600::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-275.awsdns-34.com205.251.193.19 2600:9000:5301:1300::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.193.19 2600:9000:5301:1300::1
ns-664.awsdns-19.net205.251.194.152 2600:9000:5302:9800::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1112.awsdns-11.org, ns-2006.awsdns-58.co.uk, ns-275.awsdns-34.com, ns-664.awsdns-19.net.
  • ✓ 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 4 IPv4 /24s and 4 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS16509 (AMAZON-02 - Amazon.com, Inc., US): 8 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • ✓ Nameserver names under 4 TLDs #12
    Nameserver names use the TLDs .com, .net, .org, .uk.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns-1112.awsdns-11.org 205.251.196.88NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1112.awsdns-11.org 2600:9000:5304:5800::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-2006.awsdns-58.co.uk 205.251.199.214NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-2006.awsdns-58.co.uk 2600:9000:5307:d600::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-275.awsdns-34.com 205.251.193.19NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-275.awsdns-34.com 2600:9000:5301:1300::1NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns-664.awsdns-19.net 205.251.194.152NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-664.awsdns-19.net 2600:9000:5302:9800::1NOERROR, 4 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 8 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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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 1 · primary ns-664.awsdns-19.net

Found

Primary (MNAME)
ns-664.awsdns-19.net
Contact (RNAME)
awsdns-hostmaster.amazon.com
Serial
1
Refresh / retry
7200 s / 900 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns-1112.awsdns-11.org (205.251.196.88)1
ns-1112.awsdns-11.org (2600:9000:5304:5800::1)1
ns-2006.awsdns-58.co.uk (205.251.199.214)1
ns-2006.awsdns-58.co.uk (2600:9000:5307:d600::1)1
ns-275.awsdns-34.com (205.251.193.19)1
ns-275.awsdns-34.com (2600:9000:5301:1300::1)1
ns-664.awsdns-19.net (205.251.194.152)1
ns-664.awsdns-19.net (2600:9000:5302:9800::1)1

Checks

  • ✓ Serial 1 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 15m, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns-664.awsdns-19.net is one of the listed nameservers.
  • ✓ Contact awsdns-hostmaster@amazon.com #25
    The SOA RNAME awsdns-hostmaster.amazon.com means awsdns-hostmaster@amazon.com.
  • ✓ Counter serial #26
    The serial 1 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

warn

35 records at the apex

Found

Read from
205.251.196.88:53
TypeValueTTL
SOAns-664.awsdns-19.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1112.awsdns-11.org.172800
NSns-2006.awsdns-58.co.uk.172800
NSns-275.awsdns-34.com.172800
NSns-664.awsdns-19.net.172800
A13.226.244.12960
A13.226.244.8960
A13.226.244.12460
A13.226.244.460
MX1 aspmx.l.google.com.60
MX10 aspmx2.googlemail.com.60
MX10 aspmx3.googlemail.com.60
MX5 alt1.aspmx.l.google.com.60
MX5 alt2.aspmx.l.google.com.60
TXT"MS=ms45627437"60
TXT"amazonses:2pjHny6OcDh8dBbZMYjP1+sGNJajS3Cx2B4oI1ttWew="60
TXT"amazonses:Rv54ekoZBnp8fjpDLl1u98+NIeHpOibzRfsderGo9TE="60
TXT"apple-domain-verification=dUrUhy2bEppoTZ2R"60
TXT"asv=f5d69813aae4426e9395aa2b6d40ba3f"60
TXT"atlassian-domain-verification=nh75E949cnlCREDPXQ0jcAgX561F0fuvoBqBssbAVmOWesLQIdsBzVFLd/3/ez2X"60
TXT"cisco-ci-domain-verification=fb1ae913e5b95e523f7c55e31ae04d1d13e9e3e0d0bb9278a754cfb75dde183"60
TXT"facebook-domain-verification=k6vtyk8k6nrs1f2k63a2dwhf8uslyp"60
TXT"facebook-domain-verification=nvyswe03gs7ni3lzn66kr19fpbfp3b"60
TXT"google-site-verification=FgjX-oR-1LUKdGsECWYGtCHVPylqJX3OM0nnyIw-syc"60
TXT"google-site-verification=HPC_d213qJ397T1AsHZezPE3iNOE6kzZsGrYYkbqFcc"60
TXT"google-site-verification=TfqYuxLnjbx5lwDeIDHvN3O-CtaYwWVNMJ2Pr7drNks"60
TXT"google-site-verification=Vp8ixpHMFgIn5vwU4_IeApbdKyISDS9JSrs2fp-MHL0"60
TXT"google-site-verification=clDgGMiyg1KiLepqY8zIrfXr18gCQNu6f7QAlAZVlQE"60
TXT"google-site-verification=sGPrrPB94S23c408ClkfIjGvfmUkwRhthz5WSUd-cSI"60
TXT"openai-domain-verification=dv-VWgwXplX4OeWObvPk1Lh6YAj"60
TXT"tgs3bqldtx9lcbxklkzn1g67q3s389c3"60
TXT"v=spf1 include:sendgrid.net include:_spf.google.com include:spf.mandrillapp.com include:mail.zendesk.com include:docebosaas.com include:servers.mcsv.net include:amazonses.com include:7260515.spf02.hubspotemail.net include:cust-spf.exacttarget.com ~all"60
TXT"xPYqYMWT5VzFZexP9DvTIa1EUF4KEZpotZNIxYwUVQU="60
TXT"z193bvtqdn174kg50r5wqxlb21lkbvpn"60
TXT"zendeskverification.spartan.com=d1bc329c1e80819e"60

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), MX (1m). Low TTLs are useful just before a planned change.
    #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