ktvu.com

Checked 22 October 2026, 09:33 UTC · via 8.8.8.8
!Passed with warnings
28 passed 2 warnings 0 failed 5 info

Registration

info

.com generic · GoDaddy Corporate Domains, LLC · expires 2027-04-24

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
GoDaddy Corporate Domains, LLC
Registered
23 April 1995
Last changed
27 March 2026
Expires
24 April 2027
Status
client transfer prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
ns01.dns.fox, ns01.foxdoua.com, ns02.dns.fox, ns02.foxdoua.com, ns03.dns.fox, ns03.foxdoua.com, ns04.dns.fox, ns04.foxdoua.com
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 2027-04-24 #3
    The registration is valid until 2027-04-24 (183 days).
  • ✓ Transfer locked #4
    Registry status: client transfer prohibited, server delete prohibited, server transfer prohibited, server update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

warn

ns01.dns.fox, ns01.foxdoua.com, ns02.dns.fox, ns02.foxdoua.com, ns03.dns.fox, ns03.foxdoua.com, ns04.dns.fox, ns04.foxdoua.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns01.dns.fox, ns01.foxdoua.com, ns02.dns.fox, ns02.foxdoua.com, ns03.dns.fox, ns03.foxdoua.com, ns04.dns.fox, ns04.foxdoua.com
NS in the zone
ns01.dns.fox, ns01.foxdoua.com, ns02.dns.fox, ns02.foxdoua.com, ns03.dns.fox, ns03.foxdoua.com, ns04.dns.fox, ns04.foxdoua.com
NameserverAddressesNetwork (AS)Glue
ns01.dns.fox198.51.44.6AS62597 NSONE - NSONE Inc, US-
ns01.foxdoua.com45.54.79.1AS63911 NETACTUATE-AS-AP - NetActuate, Inc, US2607:f740:e645::1 45.54.79.1
ns02.dns.fox198.51.45.6AS62597 NSONE - NSONE Inc, US-
ns02.foxdoua.com45.54.79.65AS63911 NETACTUATE-AS-AP - NetActuate, Inc, US2607:f740:e645:4::1 45.54.79.65
ns03.dns.fox198.51.44.70AS62597 NSONE - NSONE Inc, US-
ns03.foxdoua.com45.54.79.129AS63911 NETACTUATE-AS-AP - NetActuate, Inc, US2607:f740:e645:8::1 45.54.79.129
ns04.dns.fox198.51.45.70AS62597 NSONE - NSONE Inc, US-
ns04.foxdoua.com45.54.79.193AS63911 NETACTUATE-AS-AP - NetActuate, Inc, US2607:f740:e645:c::1 45.54.79.193

Checks

  • ✓ 8 nameservers #6
    Delegated to ns01.dns.fox, ns01.foxdoua.com, ns02.dns.fox, ns02.foxdoua.com, ns03.dns.fox, ns03.foxdoua.com, ns04.dns.fox, ns04.foxdoua.com.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • !
    Glue differs from the zone
    The addresses at the parent (glue) differ from the addresses in the zone: ns01.foxdoua.com (glue 2607:f740:e645::1, 45.54.79.1, zone 45.54.79.1); ns02.foxdoua.com (glue 2607:f740:e645:4::1, 45.54.79.65, zone 45.54.79.65); ns03.foxdoua.com (glue 2607:f740:e645:8::1, 45.54.79.129, zone 45.54.79.129); ns04.foxdoua.com (glue 2607:f740:e645:c::1, 45.54.79.193, zone 45.54.79.193). Update the glue at your registrar.
    #8
  • ✓ 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 3 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS62597 (NSONE - NSONE Inc, US): 4 addresses; AS63911 (NETACTUATE-AS-AP - NetActuate, Inc, US): 4 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .fox.
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

info

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns01.dns.fox 198.51.44.6NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
ns01.foxdoua.com 45.54.79.1NOERROR, 13 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
ns02.dns.fox 198.51.45.6NOERROR, 7 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
ns02.foxdoua.com 45.54.79.65NOERROR, 13 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
ns03.dns.fox 198.51.44.70NOERROR, 8 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
ns03.foxdoua.com 45.54.79.129NOERROR, 13 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
ns04.dns.fox 198.51.45.70NOERROR, 7 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
ns04.foxdoua.com 45.54.79.193NOERROR, 14 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9

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: ns01.dns.fox: "19dd46e347df36b70933bf2be8023258586586a9"; ns01.foxdoua.com: "19dd46e347df36b70933bf2be8023258586586a9"; ns02.dns.fox: "19dd46e347df36b70933bf2be8023258586586a9"; ns02.foxdoua.com: "19dd46e347df36b70933bf2be8023258586586a9"; ns03.dns.fox: "19dd46e347df36b70933bf2be8023258586586a9"; ns03.foxdoua.com: "19dd46e347df36b70933bf2be8023258586586a9"; ns04.dns.fox: "19dd46e347df36b70933bf2be8023258586586a9"; ns04.foxdoua.com: "19dd46e347df36b70933bf2be8023258586586a9".
    #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

info

serial 1792627512 · primary dns1.p06.nsone.net

Found

Primary (MNAME)
dns1.p06.nsone.net
Contact (RNAME)
hostmaster.nsone.net
Serial
1792627512
Refresh / retry
43200 s / 7200 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns01.dns.fox (198.51.44.6)1792627512
ns01.foxdoua.com (45.54.79.1)1792627512
ns02.dns.fox (198.51.45.6)1792627512
ns02.foxdoua.com (45.54.79.65)1792627512
ns03.dns.fox (198.51.44.70)1792627512
ns03.foxdoua.com (45.54.79.129)1792627512
ns04.dns.fox (198.51.45.70)1792627512
ns04.foxdoua.com (45.54.79.193)1792627512

Checks

  • ✓ Serial 1792627512 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 12h, retry 2h, expire 14d, negative TTL 1h.
  • i
    Hidden master
    The primary nameserver dns1.p06.nsone.net is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.
    #24
  • ✓ Contact hostmaster@nsone.net #25
    The SOA RNAME hostmaster.nsone.net means hostmaster@nsone.net.
  • ✓ Timestamp serial #26
    The serial 1792627512 is a Unix timestamp (2026-10-22 00:05 UTC).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC
Signatures valid until
23 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
48553ECDSAP256SHA256 (13)SHA256 B8B93DBD208E8252…yes

DNSKEY in the zone

Key tagRoleAlgorithm
48553KSK (257)ECDSAP256SHA256 (13)
12196ZSK (256)ECDSAP256SHA256 (13)
52254ZSK (256)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 48553 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 26h0m0s and created on demand; the current one was made at 2026-10-22 08:33 UTC and expires at 2026-10-23 10:33 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

20 records at the apex

Found

Read from
198.51.44.6:53
TypeValueTTL
SOAdns1.p06.nsone.net. hostmaster.nsone.net. 1792627512 43200 7200 1209600 36007200
NSns01.dns.fox.86400
NSns02.dns.fox.86400
NSns03.dns.fox.86400
NSns04.dns.fox.86400
NSns01.foxdoua.com.86400
NSns02.foxdoua.com.86400
NSns03.foxdoua.com.86400
NSns04.foxdoua.com.86400
A2.19.198.727200
A2.19.198.737200
A23.32.238.1637200
A23.32.238.977200
AAAA2a02:26f0:3500:12::1730:17b07200
AAAA2a02:26f0:3500:12::1730:17c07200
TXT"v=spf1 -all"3600
TXT"google-site-verification=kwj_CayIhA5I7Km05-6bfrHrnBm6UMtUAlyzWZSg82g"3600
TXT"GT6fqmrtOekYhCM2Ho8t/Bh81DvtRwBHCvqEpq1nwJ0="3600
TXT"78x53ALLMSGa2mkZnDUDMRXvD545qbaaUROigzp9hmM="3600
TXT"mksnwhfq51bf21w9gtv4w645kw5vyhs8"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 2h, AAAA 2h, 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