terrapinn.com

Checked 22 October 2026, 11:01 UTC · via 8.8.8.8
!Passed with warnings
27 passed 1 warning 0 failed 7 info

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2027-05-09

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
9 May 2000
Last changed
5 May 2026
Expires
9 May 2027
Status
client transfer prohibited
Registry nameservers
dns1.cscdns.net, dns2.cscdns.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 2027-05-09 #3
    The registration is valid until 2027-05-09 (199 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

dns1.cscdns.net, dns2.cscdns.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
dns1.cscdns.net, dns2.cscdns.net
NS in the zone
dns1.cscdns.net, dns2.cscdns.net
NameserverAddressesNetwork (AS)Glue
dns1.cscdns.net156.154.130.100 2610:a1:1022::100AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
dns2.cscdns.net156.154.131.100 2610:a1:1023::100AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: dns1.cscdns.net, dns2.cscdns.net.
    #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 2 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS12008 (VERCARA - Vercara, LLC, US): 4 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 .net
    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

info

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns1.cscdns.net 156.154.130.100NOERROR, 32 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
dns1.cscdns.net 2610:a1:1022::100NOERROR, 32 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
dns2.cscdns.net 156.154.131.100NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
dns2.cscdns.net 2610:a1:1023::100NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver

Checks

  • ✓ All respond #14
    All 4 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: dns1.cscdns.net: "UltraDNS Nameserver"; dns2.cscdns.net: "UltraDNS Nameserver".
    #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 2024011668 · primary dns1.cscdns.net

Found

Primary (MNAME)
dns1.cscdns.net
Contact (RNAME)
hostmaster.cscdns.net
Serial
2024011668
Refresh / retry
300 s / 300 s
Expire
86400 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
dns1.cscdns.net (156.154.130.100)2024011668
dns1.cscdns.net (2610:a1:1022::100)2024011668
dns2.cscdns.net (156.154.131.100)2024011668
dns2.cscdns.net (2610:a1:1023::100)2024011668

Checks

  • ✓ Serial 2024011668 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    refresh 5m is outside 20m–1d; retry 5m should be shorter than refresh 5m; expire 1d is shorter than 7d; secondaries stop answering too soon when the primary is down. Current values: refresh 5m, retry 5m, expire 1d, negative TTL 1h.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns1.cscdns.net is one of the listed nameservers.
  • ✓ Contact hostmaster@cscdns.net #25
    The SOA RNAME hostmaster.cscdns.net means hostmaster@cscdns.net.
  • ✓ Date-based serial #26
    The serial 2024011668 follows the YYYYMMDDnn convention (2024-01-16).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC
Signatures valid until
1 November 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
61468ECDSAP256SHA256 (13)SHA256 134AEE2D500AE9CA…yes
61468ECDSAP256SHA256 (13)SHA1 66337736B9227C90…yes

DNSKEY in the zone

Key tagRoleAlgorithm
6111ZSK (256)ECDSAP256SHA256 (13)
21357ZSK (256)ECDSAP256SHA256 (13)
61468KSK (257)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 61468 (SHA256), key tag 61468 (SHA1).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Signatures valid until 2026-11-01 #30
    The earliest DNSKEY/SOA signature expires at 2026-11-01 07:36 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

info

11 records at the apex

Found

Read from
156.154.130.100:53
TypeValueTTL
SOAdns1.cscdns.net. hostmaster.cscdns.net. 2024011668 300 300 86400 36003600
NSdns1.cscdns.net.3600
NSdns2.cscdns.net.3600
A185.85.84.2233600
MX0 terrapinn-com.mail.protection.outlook.com.3600
TXT"MS=ms14405837"3600
TXT"ZOOM_verify_Uj87mIi-RtqUalDJrKhgdg"3600
TXT"pandadoc-domain-verification=2QNBjnNLgC6UuTicKCrAfB"3600
TXT"anthropic-domain-verification-djtc2n=8oQcBwR8bgYdu9DjWxyqDyNgV"3600
TXT"google-site-verification=zc6lg_DkIulcjRF-Tr9NyofpacqowlwglyPGs4tpTks"3600
TXT"v=spf1 include:_spf1.swapcard.com include:spf.protection.outlook.com ip4:35.178.221.120/32 include:amazonses.com ip4:217.154.109.87/32 ip4:217.154.109.80/32 ip4:18.130.3.191/32 ip4:185.85.84.240/32 -all"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 1h, NS 1h. The NS TTL at the parent is 2d and in the zone 1h; 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