knightfrank.com

Checked 22 October 2026, 09:32 UTC · via 8.8.8.8
!Passed with warnings
25 passed 1 warning 0 failed 5 info

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2027-03-20

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
19 March 1996
Last changed
16 March 2026
Expires
20 March 2027
Status
client transfer prohibited
Registry nameservers
ns1.netnames.net, ns2.netnames.net, ns5.netnames.net, ns6.netnames.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 2027-03-20 #3
    The registration is valid until 2027-03-20 (148 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

ns1.netnames.net, ns2.netnames.net, ns5.netnames.net, ns6.netnames.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.netnames.net, ns2.netnames.net, ns5.netnames.net, ns6.netnames.net
NS in the zone
ns1.netnames.net, ns2.netnames.net, ns5.netnames.net, ns6.netnames.net
NameserverAddressesNetwork (AS)Glue
ns1.netnames.net156.154.130.100 2610:a1:1022::100AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
ns2.netnames.net156.154.131.100 2610:a1:1023::100AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
ns5.netnames.net156.154.130.100 2610:a1:1022::100AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
ns6.netnames.net156.154.131.100 2610:a1:1023::100AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1.netnames.net, ns2.netnames.net, ns5.netnames.net, ns6.netnames.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 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): 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
  • 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

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.netnames.net 156.154.130.100NOERROR, 36 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns1.netnames.net 2610:a1:1022::100NOERROR, 17 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns2.netnames.net 156.154.131.100NOERROR, 8 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns2.netnames.net 2610:a1:1023::100NOERROR, 8 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns5.netnames.net 156.154.130.100NOERROR, 36 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns5.netnames.net 2610:a1:1022::100NOERROR, 17 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns6.netnames.net 156.154.131.100NOERROR, 7 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns6.netnames.net 2610:a1:1023::100NOERROR, 7 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver

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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns1.netnames.net: "UltraDNS Nameserver"; ns2.netnames.net: "UltraDNS Nameserver"; ns5.netnames.net: "UltraDNS Nameserver"; ns6.netnames.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

pass

serial 2018074185 · primary ns1.netnames.net

Found

Primary (MNAME)
ns1.netnames.net
Contact (RNAME)
hostmaster.cscdns.net
Serial
2018074185
Refresh / retry
10800 s / 1800 s
Expire
3600000 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns1.netnames.net (156.154.130.100)2018074185
ns1.netnames.net (2610:a1:1022::100)2018074185
ns2.netnames.net (156.154.131.100)2018074185
ns2.netnames.net (2610:a1:1023::100)2018074185
ns5.netnames.net (156.154.130.100)2018074185
ns5.netnames.net (2610:a1:1022::100)2018074185
ns6.netnames.net (156.154.131.100)2018074185
ns6.netnames.net (2610:a1:1023::100)2018074185

Checks

  • ✓ Serial 2018074185 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 30m, expire 1000h, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.netnames.net is one of the listed nameservers.
  • ✓ Contact hostmaster@cscdns.net #25
    The SOA RNAME hostmaster.cscdns.net means hostmaster@cscdns.net.
  • ✓ Timestamp serial #26
    The serial 2018074185 is a Unix timestamp (2033-12-13 08:09 UTC).

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

19 records at the apex

Found

Read from
156.154.130.100:53
TypeValueTTL
SOAns1.netnames.net. hostmaster.cscdns.net. 2018074185 10800 1800 3600000 8640021600
NSns1.netnames.net.86400
NSns2.netnames.net.86400
NSns5.netnames.net.86400
NSns6.netnames.net.86400
A157.185.155.6300
MX10 eu-smtp-inbound-1.mimecast.com.86400
MX20 eu-smtp-inbound-2.mimecast.com.86400
TXT"MS=ms25354867"300
TXT"include:spf.uk.exclaimer.net"300
TXT"apple-domain-verification=jbGQKpIZnGguv0fR"300
TXT"teamviewer-sso-verification=f3f5c36b84094ea2905533e1ed4fb46e"300
TXT"anthropic-domain-verification-2tfmw8=HcIpSYqbqyHaZz2sTMM99VSyw"300
TXT"google-site-verification=fnz-gFCXjbByMOJb8vX3wN4mRRGimnoFZvt96IojeGQ"300
TXT"google-site-verification=xKqSIEIZIHEVP4Cm42_8h_5MhKNSVUIM8pD1gEj33ZQ"300
TXT"pardot1118293=240657f29e0e326a910cdaa159d4b29d84d31e8c1a734e5a5778adf5b0f8c9ec"300
TXT"5LzMD7Hlm0XVbPznnBPI6cHy5B2A6JnDXxw0MDzgIKEDrOj1QtY/RubKYF/V/ZCJjmt/rmF+CHdnJKqnUM8mug=="300
TXT"successfactors-site-verification=MGRlNGQ2ZTY5N2Q0OTAyMDdmMDY1MTBlNGJhZjBmODFhZWNlZTRjNzZiMDI1ZjZkODJkMDUyM2Q0ZTEyNGFjZQ=="300
TXT"v=spf1 ip4:213.52.186.141 ip4:13.79.34.187 ip4:217.72.254.211 ip4:37.244.88.211 ip4:213.52.186.142 ip4:155.56.221.13 ip4:155.56.221.14 ip4:167.89.19.59 include:spf.protection.outlook.com include:eu._netblocks.mimecast.com include:sendgrid.net -all"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 1d, 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