tiffany.com

Checked 22 October 2026, 11:04 UTC · via 8.8.8.8
!Passed with warnings
24 passed 2 warnings 0 failed 5 info

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2027-07-07

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
8 July 1995
Last changed
3 July 2026
Expires
7 July 2027
Status
client transfer prohibited
Registry nameservers
udns1.cscdns.net, udns2.cscdns.uk
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 2027-07-07 #3
    The registration is valid until 2027-07-07 (257 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

udns1.cscdns.net, udns2.cscdns.uk

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
udns1.cscdns.net, udns2.cscdns.uk
NS in the zone
udns1.cscdns.net, udns2.cscdns.uk
NameserverAddressesNetwork (AS)Glue
udns1.cscdns.net204.74.66.1 2001:502:f3ff::201AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
udns2.cscdns.uk204.74.111.1 2001:502:4612::201AS12008 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: udns1.cscdns.net, udns2.cscdns.uk.
    #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
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .net, .uk.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
udns1.cscdns.net 204.74.66.1NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
udns1.cscdns.net 2001:502:f3ff::201NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
udns2.cscdns.uk 204.74.111.1NOERROR, 31 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
udns2.cscdns.uk 2001:502:4612::201NOERROR, 31 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: udns1.cscdns.net: "UltraDNS Nameserver"; udns2.cscdns.uk: "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

pass

serial 2019102621 · primary udns1.cscdns.net

Found

Primary (MNAME)
udns1.cscdns.net
Contact (RNAME)
hostmaster.cscdns.net
Serial
2019102621
Refresh / retry
28800 s / 7200 s
Expire
1209600 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
udns1.cscdns.net (204.74.66.1)2019102621
udns1.cscdns.net (2001:502:f3ff::201)2019102621
udns2.cscdns.uk (204.74.111.1)2019102621
udns2.cscdns.uk (2001:502:4612::201)2019102621

Checks

  • ✓ Serial 2019102621 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 2h, expire 14d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver udns1.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 2019102621 follows the YYYYMMDDnn convention (2019-10-26).

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

41 records at the apex

Found

Read from
204.74.66.1:53
TypeValueTTL
SOAudns1.cscdns.net. hostmaster.cscdns.net. 2019102621 28800 7200 1209600 300300
NSudns1.cscdns.net.300
NSudns2.cscdns.uk.300
A184.31.82.1717
AAAA2a02:26f0:1700:383::2f2320
AAAA2a02:26f0:1700:392::2f2320
MX10 mxa-0024c501.gslb.pphosted.com.300
MX10 mxb-0024c501.gslb.pphosted.com.300
TXT"MS=ms75301870"86400
TXT"_0dzcmb1e16bsnbw6iyrns6t1pokavst"86400
TXT"_0e7gqg1s79g64trni77mo1cnspu4he2"86400
TXT"_bwnl5lu3w34djmhn9jwe2wdi8tkblh7"86400
TXT"_xy6bd33s3hupcdtcd4fd5ygzg34sw3d"86400
TXT"_ybbd1yp2h3z706dftxklu1qkjulutdj"86400
TXT"q320tfnxjrqtp4pj6lsvww1sknqr4b7d"86400
TXT"ZOOM_verify_yZVp4rcJR0SaPQeGOjBfhg"86400
TXT"77086c01-ea2b-40a0-9155-e551001d5679"86400
TXT"asv=d8568cda072d948dae7d1a49b16e3012"86400
TXT"LZx14ElH=9e4fdbdbce19fe269a5a4a860543063b"86400
TXT"apple-domain-verification=umD3mnuFtaWd5PKT"86400
TXT"docusign=d5aea745-e84c-486a-8f53-7be2d7b1cb64"86400
TXT"jamf-site-verification=8ZTihq5S3QIqLol4SER2PQ"86400
TXT"facebook-domain-verification=dtdhnyss1jx3r543g7zflnz09nv3fg"86400
TXT"teamviewer-sso-verification=2b5352a59a1d497fa2a4ac8cf6d1b19a"86400
TXT"vmware-cloud-verification-835f6fac-ad84-423a-9d9e-af492c2f981a"86400
TXT"adobe-idp-site-verification=d0673692-3d32-4308-80c1-52a6877a7649"86400
TXT"extensis-domain-verification=57c1105a-55b8-4ca2-b378-bb97d4f9f0ef"86400
TXT"google-site-verification=Zr0NTjbmKHYEjIt3EepbcUZmAerlbyaYsFe46ybVNtM"86400
TXT"google-site-verification=eW23T3xsEtvTUl71ZA99upUZcyihy2BN5HQOQZs0tFY"86400
TXT"worksmobile.certification.8vca4c58vp7bxi4zfe.a0ih1pqh2bs4nz.zsoaw6krg"86400
TXT"neat-pulse-domain-verification-WLNP79M=a01b1fd4-1508-4823-b08c-6aba86395d0a"86400
TXT"pardot_141691_*=8d5f57ac2f4e48d9c9880c2ba22c9f31ca83272df71afff8e9fd5bc6f4867601"86400
TXT"sfcc_verification_bkcp=8d71dbe8b591cedfa973ccf563a565be3032baf0bd1a4f5c2179b344bbb7d63e"86400
TXT"BlhEZ6gbky3CVZGDtYMsSnkqE4UXZoXD9wKPqJCU3s9aievDMFP6HFJZo6U+A20sFjC72d4GVIcrByUA8XLoeA=="86400
TXT"lMseM1814wUbgQfy4/Qz6rrXFC2FkJBgCwzCpb86Bwbk37LfBUiKaJ5ZQ3DUx6FCClbz6sSDEdFTK/jCc8DjhQ=="86400
TXT"wiz-domain-verification=6ee79d32ca94e6865a6da24bcd59be1191354cf8575d9ca61426454dec4f69fe"86400
TXT"Dynatrace-site-verification=3ead5a5e-f2bf-4522-b14f-63ddba6c8887__cpgr8qom2ik9o2ncga00jn07of"86400
TXT"Dynatrace-site-verification=7d49c1f8-00c0-44ab-a54a-138259311df5__o56eiencqln6l8oga62atfpmmg"86400
TXT"cisco-ci-domain-verification=1d1d14fd47d55af4c35b58f1d0fad0b2bab9a411f4c1df27277d2dd8db45b4d5"86400
TXT"atlassian-domain-verification=c1actJ0JAzcSFLkxnq5D0273R9zYjIjrVo6ihAeV9paFA7vcE/ef8ehuJpP3O8BP"86400
TXT"v=spf1 include:spf.protection.outlook.com include:spf1.tiffany.com include:spf-0024c501.pphosted.com include:spf-0024c502.pphosted.com ip4:20.85.51.10 ip4:20.62.30.247 ip4:20.62.28.47 ip4:195.15.206.45 ip4:195.15.206.100 ip6:2001:1600:13:101::1c2" " ip6:2001:1600:13:101::384 -all"86400

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (17s), AAAA (20s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 5m; resolvers may use either.
    #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