specialized.com

Checked 22 October 2026, 10:46 UTC · via 8.8.8.8
!Passed with warnings
25 passed 2 warnings 0 failed 4 info

Registration

info

.com generic · Network Solutions, LLC · expires 2030-11-01

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Network Solutions, LLC
Registered
2 November 1994
Last changed
1 November 2020
Expires
1 November 2030
Status
client transfer prohibited
Registry nameservers
ns11.constellix.com, ns21.constellix.com, ns31.constellix.com, ns41.constellix.net, ns51.constellix.net, ns61.constellix.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 2030-11-01 #3
    The registration is valid until 2030-11-01 (1470 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

ns11.constellix.com, ns21.constellix.com, ns31.constellix.com, ns41.constellix.net, ns51.constellix.net, ns61.constellix.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns11.constellix.com, ns21.constellix.com, ns31.constellix.com, ns41.constellix.net, ns51.constellix.net, ns61.constellix.net
NS in the zone
ns11.constellix.com, ns21.constellix.com, ns31.constellix.com, ns41.constellix.net, ns51.constellix.net, ns61.constellix.net
NameserverAddressesNetwork (AS)Glue
ns11.constellix.com96.45.80.1 2600:180a:1001::1AS16552 DIGICERT - Tiggee LLC, US AS16552 DIGICERT - Tiggee LLC, US2600:180a:1001::1 96.45.80.1
ns21.constellix.com46.31.236.1 2600:180b:2001::1AS16552 DIGICERT - Tiggee LLC, US AS16552 DIGICERT - Tiggee LLC, US2600:180b:2001::1 46.31.236.1
ns31.constellix.com43.247.170.1 2600:180c:3001::1AS16552 DIGICERT - Tiggee LLC, US AS16552 DIGICERT - Tiggee LLC, US2600:180c:3001::1 43.247.170.1
ns41.constellix.net96.45.81.1 2600:180a:4001::1AS16552 DIGICERT - Tiggee LLC, US AS16552 DIGICERT - Tiggee LLC, US-
ns51.constellix.net46.31.237.1 2600:180b:5001::1AS16552 DIGICERT - Tiggee LLC, US AS16552 DIGICERT - Tiggee LLC, US-
ns61.constellix.net43.247.171.1 2600:180c:6001::1AS16552 DIGICERT - Tiggee LLC, US AS16552 DIGICERT - Tiggee LLC, US-

Checks

  • ✓ 6 nameservers #6
    Delegated to ns11.constellix.com, ns21.constellix.com, ns31.constellix.com, ns41.constellix.net, ns51.constellix.net, ns61.constellix.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 6 IPv4 /24s and 6 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS16552 (DIGICERT - Tiggee LLC, 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
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .net.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns11.constellix.com 96.45.80.1NOERROR, 3 ms, authoritativenoyes / yesrefused179812
ns11.constellix.com 2600:180a:1001::1NOERROR, 4 ms, authoritativenoyes / yesrefused179812
ns21.constellix.com 46.31.236.1NOERROR, 3 ms, authoritativenoyes / yesrefused105986
ns21.constellix.com 2600:180b:2001::1NOERROR, 3 ms, authoritativenoyes / yesrefused105986
ns31.constellix.com 43.247.170.1NOERROR, 4 ms, authoritativenoyes / yesrefused808515
ns31.constellix.com 2600:180c:3001::1NOERROR, 4 ms, authoritativenoyes / yesrefused808515
ns41.constellix.net 96.45.81.1NOERROR, 3 ms, authoritativenoyes / yesrefused179812
ns41.constellix.net 2600:180a:4001::1NOERROR, 4 ms, authoritativenoyes / yesrefused179812
ns51.constellix.net 46.31.237.1NOERROR, 4 ms, authoritativenoyes / yesrefused105986
ns51.constellix.net 2600:180b:5001::1NOERROR, 4 ms, authoritativenoyes / yesrefused105986
ns61.constellix.net 43.247.171.1NOERROR, 4 ms, authoritativenoyes / yesrefused808515
ns61.constellix.net 2600:180c:6001::1NOERROR, 4 ms, authoritativenoyes / yesrefused808515

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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns11.constellix.com: "179812"; ns21.constellix.com: "105986"; ns31.constellix.com: "808515"; ns41.constellix.net: "179812"; ns51.constellix.net: "105986"; ns61.constellix.net: "808515".
    #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 2015010748 · primary ns11.constellix.com

Found

Primary (MNAME)
ns11.constellix.com
Contact (RNAME)
dns.constellix.com
Serial
2015010748
Refresh / retry
43200 s / 3600 s
Expire
1209600 s
Negative TTL
180 s

Serial per nameserver

NameserverSerial
ns11.constellix.com (96.45.80.1)2015010748
ns11.constellix.com (2600:180a:1001::1)2015010748
ns21.constellix.com (46.31.236.1)2015010748
ns21.constellix.com (2600:180b:2001::1)2015010748
ns31.constellix.com (43.247.170.1)2015010748
ns31.constellix.com (2600:180c:3001::1)2015010748
ns41.constellix.net (96.45.81.1)2015010748
ns41.constellix.net (2600:180a:4001::1)2015010748
ns51.constellix.net (46.31.237.1)2015010748
ns51.constellix.net (2600:180b:5001::1)2015010748
ns61.constellix.net (43.247.171.1)2015010748
ns61.constellix.net (2600:180c:6001::1)2015010748

Checks

  • ✓ Serial 2015010748 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
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns11.constellix.com is one of the listed nameservers.
  • ✓ Contact dns@constellix.com #25
    The SOA RNAME dns.constellix.com means dns@constellix.com.
  • ✓ Date-based serial #26
    The serial 2015010748 follows the YYYYMMDDnn convention (2015-01-07).

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

info

47 records at the apex

Found

Read from
96.45.80.1:53
TypeValueTTL
SOAns11.constellix.com. dns.constellix.com. 2015010748 43200 3600 1209600 18086400
NSns61.constellix.net.86400
NSns11.constellix.com.86400
NSns21.constellix.com.86400
NSns31.constellix.com.86400
NSns41.constellix.net.86400
NSns51.constellix.net.86400
A172.64.146.2341800
A104.18.41.221800
AAAA2a06:98c1:310d::6812:29161800
AAAA2606:4700:4406::ac40:92ea1800
MX10 us-smtp-inbound-1.mimecast.com.600
MX10 us-smtp-inbound-2.mimecast.com.600
TXT"P2A_10024993_10"1800
TXT"adobe-idp-site-verification=cdb7f432-23be-4828-919a-f3da4cb53533"1800
TXT"v=spf1 include:spf2.specialized.com include:us._netblocks.mimecast.com include:spf.protection.outlook.com -all"1800
TXT"atlassian-domain-verification=6oxEDxkGxZC1wUFYlayWgiB9QVzeKE1BfcD6hGYgg3o9wEzR8CdZoQHDU+BUT3zV"1800
TXT"MS=CAC2EB7E0F531A704F7775834172CA53E8BC94D0"1800
TXT"v=spf2.0/pra mx ip4:63.137.180.141 ip4:63.137.180.142 ip4:63.137.180.143 include:mailgun.org -all"1800
TXT"MS=ms64331532"1800
TXT"MS=ms41540974"1800
TXT"google-site-verification=35q33FVlOtFGbzGj4QWuUpqSLR9yTV25Y8olwXUqVP4"1800
TXT"apple-domain-verification=bvWSm541SdQEuv2f"1800
TXT"miro-verification=b24bccfb9f677d7d4e84e5350d9fe4b54e9c05ac"1800
TXT"facebook-domain-verification=j31wf9k2yk2icvbsoae293j7dqhx4n"1800
TXT"facebook-domain-verification=lgcscycyulykrmh0jwp9izeabigrw5"1800
TXT"facebook-domain-verification=3hhak923ym2evtzc1gufcrd64dis4r"1800
TXT"facebook-domain-verification=igifnjzkyzjfcphzotzgwh1kql6ear"1800
TXT"apple-domain-verification=z1ckaKnG60Q414VB"1800
TXT"shopify-verification-code=2yrPqLtWMw50cA7Qivqrpil2Ym74jw"1800
TXT"h1-domain-verification=SgFCYoGW3vsvJeeoXhfdtRsoQ5qDwPAdUn8rwTTr7Re9Ci47"1800
TXT"atlassian-domain-verification=ryTiQBPNR//at8MEYxFRbwtwbmXWUDguVHbjU6R6Xa4zFdVM6VFC1ZXm2XAV9rjG"1800
TXT"docusign=946cd45e-c320-47b0-83df-8f4b010d069b"1800
TXT"klaviyo-site-verification=QMLAEJ"1800
TXT"google-site-verification=97y8n1yDwSfx_PoH8SkZDM6wlBwlOJTo4DkmEOncfI4"1800
TXT"google-site-verification=IQ0CWKOgRvDTb8K7-RYvIyFV5wm7hiBWltXW_ZkNIcE"1800
TXT"twilio-domain-verification=569ba60b9a51df31323751e9a8f2a15d"1800
TXT"value: shopify-verification-code=lsNIKzvsnm87boAZ0XzlB93DBEolWa"1800
TXT"086b3e7ddbaecb36dcf65c1af15faaad7d5b390fef28c77993"1800
TXT"google-site-verification=My7DgujTazwZFzVCymXwDQedA9mekA7D8CR0WsEh_gw"1800
TXT"google-gws-recovery-domain-verification=54139084"1800
TXT"google-site-verification=HEPIH_ijfgEXQDolKtt-NJStUTSTI5POAtfkWzVKz50"1800
TXT"postman-domain-verification=77d2f8ec0d89f6526dde7dea9cf146f101e4f7e40e6130d9b943e24c7ac9e7b94d3608ff0c82d1c01eb9eb8f0b8d9841931874ea309843b9802a2d7832ad724a"1800
TXT"google-site-verification=P9CPzkr_YAhiYZAiZzhtx96W_w4b6FivQSQiJozZ4Ag"1800
TXT"klaviyo-site-verification=J7N8m5"1800
TXT"google-gws-recovery-domain-verification=64391981"1800
TXT"anthropic-domain-verification-efbkyy=ARtNOBo7TbA1wBAwVt7jn7cGX"1800

Checks

  • ✓ TTLs within range #32
    TTLs: A 30m, AAAA 30m, MX 10m, 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.
  • 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