techtarget.com

Checked 22 October 2026, 11:00 UTC · via 8.8.8.8
!Passed with warnings
22 passed 4 warnings 0 failed 5 info

Registration

info

.com generic · DNC Holdings, Inc. · expires 2027-12-02

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
DNC Holdings, Inc.
Registered
15 September 1999
Last changed
18 October 2026
Expires
2 December 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns10.techtarget.com, ns11.techtarget.com, ns12.techtarget.com, ns13.techtarget.com, ns14.techtarget.com, ns15.techtarget.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 2027-12-02 #3
    The registration is valid until 2027-12-02 (406 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited, client update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

warn

ns10.techtarget.com, ns11.techtarget.com, ns12.techtarget.com, ns13.techtarget.com, ns14.techtarget.com, ns15.techtarget.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns10.techtarget.com, ns11.techtarget.com, ns12.techtarget.com, ns13.techtarget.com, ns14.techtarget.com, ns15.techtarget.com
NS in the zone
ns10.techtarget.com, ns11.techtarget.com, ns12.techtarget.com, ns13.techtarget.com, ns14.techtarget.com, ns15.techtarget.com
NameserverAddressesNetwork (AS)Glue
ns10.techtarget.com96.45.80.1AS16552 DIGICERT - Tiggee LLC, US2600:180a:1001::1 96.45.80.1
ns11.techtarget.com46.31.236.1AS16552 DIGICERT - Tiggee LLC, US2600:180b:2001::1 46.31.236.1
ns12.techtarget.com43.247.170.1AS16552 DIGICERT - Tiggee LLC, US2600:180c:3001::1 43.247.170.1
ns13.techtarget.com96.45.81.1AS16552 DIGICERT - Tiggee LLC, US2600:180a:4001::1 96.45.81.1
ns14.techtarget.com46.31.237.1AS16552 DIGICERT - Tiggee LLC, US2600:180b:5001::1 46.31.237.1
ns15.techtarget.com43.247.171.1AS16552 DIGICERT - Tiggee LLC, US2600:180c:6001::1 43.247.171.1

Checks

  • ✓ 6 nameservers #6
    Delegated to ns10.techtarget.com, ns11.techtarget.com, ns12.techtarget.com, ns13.techtarget.com, ns14.techtarget.com, ns15.techtarget.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: ns10.techtarget.com (glue 2600:180a:1001::1, 96.45.80.1, zone 96.45.80.1); ns11.techtarget.com (glue 2600:180b:2001::1, 46.31.236.1, zone 46.31.236.1); ns12.techtarget.com (glue 2600:180c:3001::1, 43.247.170.1, zone 43.247.170.1); ns13.techtarget.com (glue 2600:180a:4001::1, 96.45.81.1, zone 96.45.81.1); ns14.techtarget.com (glue 2600:180b:5001::1, 46.31.237.1, zone 46.31.237.1); ns15.techtarget.com (glue 2600:180c:6001::1, 43.247.171.1, zone 43.247.171.1). 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 6 IPv4 /24s and 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS16552 (DIGICERT - Tiggee LLC, US): 6 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 .com
    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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

info

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns10.techtarget.com 96.45.80.1NOERROR, 3 ms, authoritativenoyes / yesrefused179812
ns11.techtarget.com 46.31.236.1NOERROR, 4 ms, authoritativenoyes / yesrefused105986
ns12.techtarget.com 43.247.170.1NOERROR, 3 ms, authoritativenoyes / yesrefused808515
ns13.techtarget.com 96.45.81.1NOERROR, 3 ms, authoritativenoyes / yesrefused179812
ns14.techtarget.com 46.31.237.1NOERROR, 3 ms, authoritativenoyes / yesrefused105986
ns15.techtarget.com 43.247.171.1NOERROR, 4 ms, authoritativenoyes / yesrefused808515

Checks

  • ✓ All respond #14
    All 6 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: ns10.techtarget.com: "179812"; ns11.techtarget.com: "105986"; ns12.techtarget.com: "808515"; ns13.techtarget.com: "179812"; ns14.techtarget.com: "105986"; ns15.techtarget.com: "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 2015010596 · primary ns10.techtarget.com

Found

Primary (MNAME)
ns10.techtarget.com
Contact (RNAME)
hostmaster.techtarget.com
Serial
2015010596
Refresh / retry
43200 s / 3600 s
Expire
1209600 s
Negative TTL
180 s

Serial per nameserver

NameserverSerial
ns10.techtarget.com (96.45.80.1)2015010596
ns11.techtarget.com (46.31.236.1)2015010596
ns12.techtarget.com (43.247.170.1)2015010596
ns13.techtarget.com (96.45.81.1)2015010596
ns14.techtarget.com (46.31.237.1)2015010596
ns15.techtarget.com (43.247.171.1)2015010596

Checks

  • ✓ Serial 2015010596 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 ns10.techtarget.com is one of the listed nameservers.
  • ✓ Contact hostmaster@techtarget.com #25
    The SOA RNAME hostmaster.techtarget.com means hostmaster@techtarget.com.
  • ✓ Date-based serial #26
    The serial 2015010596 follows the YYYYMMDDnn convention (2015-01-05).

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

26 records at the apex

Found

Read from
96.45.80.1:53
TypeValueTTL
SOAns10.techtarget.com. hostmaster.techtarget.com. 2015010596 43200 3600 1209600 18086400
NSns10.techtarget.com.86400
NSns11.techtarget.com.86400
NSns12.techtarget.com.86400
NSns13.techtarget.com.86400
NSns14.techtarget.com.86400
NSns15.techtarget.com.86400
A35.201.75.197300
A107.178.255.225300
MX10 mx0a-00051b01.pphosted.com.300
MX10 mx0b-00051b01.pphosted.com.300
TXT"MS=ms65462634"3600
TXT"_pv0hbcfti3dk3ulznclv4rr4ddfkiop"3600
TXT"MS=DEFC79F46DBC71ED1571C0FC8ED764450D325282"3600
TXT"google-site-verification=74hh2my_UmwQ7299BzpupbiyqHuNHltqEHoqT91WdTU"3600
TXT"UyATd4tCrKFPJgoUWSR4SThEi/PZW2aoY2mB4AxfUrXW+RalkB49hKL7bp3BvF/AYE6bsocGiB/jUsaEo4TDSQ=="3600
TXT"google-site-verification=rZaq1jkHspRZlqJRwuEdqAuVm5wiEXePze_foZRIYqc"3600
TXT"smartsheet-site-validation=e7yB3O0e67jKsN39zPgF6H5M8yu5YprE"3600
TXT"ZOOM_verify_kUsT6TMWkwN13AfmiQTuOs"3600
TXT"apple-domain-verification=qHVm0zzpiAcK289D"3600
TXT"google-site-verification=DUxeDEatmZYVpWXhjNps0QoMQME49gWPtZoYvHOOojU"3600
TXT"adobe-idp-site-verification=ddc9086934eec531a0848244b5949d8f454062360072b87743529d47aa5daab7"3600
TXT"atlassian-domain-verification=sRjOArl3CJxeea/8YAqLKRCacQg5UakXKDxOagGqaYidF0hTtppltmFqey47/JCZ"3600
TXT"google-site-verification=06ufhFpYArVGLstsuEPc1r_Aop23eYij5DmTRABFbTY"3600
TXT"atlassian-domain-verification=ow8hoanKlPK6PqVFiEXA7k4jnGbo3apXcEhEF19hGmS6HGw3JmSxbxmJRIvA8LLM"3600
TXT"v=spf1 ip4:208.84.65.49 ip4:67.231.152.14 include:spf-00051b01.pphosted.com include:spf.protection.outlook.com include:mktomail.com include:docebosaas.com include:_spf.salesforce.com include:clientspf.zestbenefits.com include:relays.gooddata.com ~all"3600

Checks

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