ti.com

Checked 22 October 2026, 11:04 UTC · via 8.8.8.8
✗Problems found
24 passed 3 warnings 1 failed 3 info

Registration

info

.com generic · GoDaddy.com, LLC · expires 2027-05-31

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
GoDaddy.com, LLC
Registered
25 March 1986
Last changed
17 August 2026
Expires
31 May 2027
Status
client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns-a.pnap.net, ns-b.pnap.net, ns-c.pnap.net, ns-d.pnap.net, ns.ti.com, ns2.ti.com, ns3.ti.com, ns4.ti.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 2027-05-31 #3
    The registration is valid until 2027-05-31 (221 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client renew 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

ns-a.pnap.net, ns-b.pnap.net, ns-c.pnap.net, ns-d.pnap.net, ns.ti.com, ns2.ti.com, ns3.ti.com, ns4.ti.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-a.pnap.net, ns-b.pnap.net, ns-c.pnap.net, ns-d.pnap.net, ns.ti.com, ns2.ti.com, ns3.ti.com, ns4.ti.com
NS in the zone
ns-a.pnap.net, ns-b.pnap.net, ns-c.pnap.net, ns-d.pnap.net, ns.ti.com, ns2.ti.com, ns3.ti.com, ns4.ti.com
NameserverAddressesNetwork (AS)Glue
ns-a.pnap.net64.94.123.4AS14744 INTERNAP-BLOCK-4 - Unitas Global, US-
ns-b.pnap.net64.94.123.36AS14744 INTERNAP-BLOCK-4 - Unitas Global, US-
ns-c.pnap.net64.95.61.4AS14745 INTERNAP-BLOCK-4 - Unitas Global, US-
ns-d.pnap.net64.95.61.36AS14745 INTERNAP-BLOCK-4 - Unitas Global, US-
ns.ti.com198.47.19.1AS161 TI-AS - Texas Instruments Incorporated, US198.47.19.1
ns2.ti.com198.47.19.2AS161 TI-AS - Texas Instruments Incorporated, US198.47.19.2
ns3.ti.com198.47.26.139AS161 TI-AS - Texas Instruments Incorporated, US198.47.26.139
ns4.ti.com198.47.26.138AS161 TI-AS - Texas Instruments Incorporated, US198.47.26.138

Checks

  • ✓ 8 nameservers #6
    Delegated to ns-a.pnap.net, ns-b.pnap.net, ns-c.pnap.net, ns-d.pnap.net, ns.ti.com, ns2.ti.com, ns3.ti.com, ns4.ti.com.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns.ti.com, ns2.ti.com, ns3.ti.com, ns4.ti.com.
  • ✓ 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 4 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS14744 (INTERNAP-BLOCK-4 - Unitas Global, US): 2 addresses; AS14745 (INTERNAP-BLOCK-4 - Unitas Global, US): 2 addresses; AS161 (TI-AS - Texas Instruments Incorporated, US): 4 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .net.
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

fail

4 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns-a.pnap.net 64.94.123.4NOERROR, 143 ms, authoritativenoyes / yesrefused-
ns-b.pnap.net 64.94.123.36NOERROR, 143 ms, authoritativenoyes / yesrefused-
ns-c.pnap.net 64.95.61.4NOERROR, 105 ms, authoritativenoyes / yesrefused-
ns-d.pnap.net 64.95.61.36NOERROR, 106 ms, authoritativenoyes / yesrefused-
ns.ti.com 198.47.19.1no responsenono / no--
ns2.ti.com 198.47.19.2no responsenono / no--
ns3.ti.com 198.47.26.139no responsenono / no--
ns4.ti.com 198.47.26.138no responsenono / no--

Checks

  • ✗
    Nameservers not responding
    These addresses did not answer, so resolvers waste time on timeouts: ns.ti.com (198.47.19.1): read udp 46.225.38.91:56171->198.47.19.1:53: i/o timeout; ns2.ti.com (198.47.19.2): read udp 46.225.38.91:33040->198.47.19.2:53: i/o timeout; ns3.ti.com (198.47.26.139): read udp 46.225.38.91:57370->198.47.26.139:53: i/o timeout; ns4.ti.com (198.47.26.138): read udp 46.225.38.91:36720->198.47.26.138:53: i/o timeout.
    #14
  • ✓ All authoritative #15
    Every responding nameserver answers authoritatively for the zone.
  • ✓ No recursion #16
    The nameservers do not answer recursive queries for other domains.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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 2013108321 · primary oqdibfd.itg.ti.com

Found

Primary (MNAME)
oqdibfd.itg.ti.com
Contact (RNAME)
hostmaster.ti.com
Serial
2013108321
Refresh / retry
900 s / 300 s
Expire
2419200 s
Negative TTL
60 s

Serial per nameserver

NameserverSerial
ns-a.pnap.net (64.94.123.4)2013108321
ns-b.pnap.net (64.94.123.36)2013108321
ns-c.pnap.net (64.95.61.4)2013108321
ns-d.pnap.net (64.95.61.36)2013108321

Checks

  • ✓ Serial 2013108321 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    refresh 15m is outside 20m–1d; negative caching TTL (minimum) 1m is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 15m, retry 5m, expire 28d, negative TTL 1m.
    #23
  • i
    Hidden master
    The primary nameserver oqdibfd.itg.ti.com 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@ti.com #25
    The SOA RNAME hostmaster.ti.com means hostmaster@ti.com.
  • ✓ Timestamp serial #26
    The serial 2013108321 is a Unix timestamp (2033-10-16 20:45 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

34 records at the apex

Found

Read from
64.94.123.4:53
TypeValueTTL
SOAoqdibfd.itg.ti.com. hostmaster.ti.com. 2013108321 900 300 2419200 603600
NSns.ti.com.3600
NSns-d.pnap.net.3600
NSns-a.pnap.net.3600
NSns4.ti.com.3600
NSns3.ti.com.3600
NSns2.ti.com.3600
NSns-c.pnap.net.3600
NSns-b.pnap.net.3600
A198.47.23.159300
MX10 mxb-0002e601.gslb.pphosted.com.3600
MX10 mxa-0002e601.gslb.pphosted.com.3600
TXT"autodesk-domain-verification=pqNgbQhuvDfwbmKT3omV"3600
TXT"canva-site-verification=lqkcrgm6zN2hKP46tRzi_w"3600
TXT"google-site-verification=1feRQdV5e-V6-VOKGRqUgaAEluhx4TKQ4ScUFfuXfuY"3600
TXT"remarkable-domain-verification=d614b48d-fb8d-41f3-973a-9e68b266a930"3600
TXT"MFC=2b819a7d-a326-4386-8edb-b47226f08331"3600
TXT"_amazonses=NUs6sVULrC3I+6RxQrBXlobJyGQy+qX3v62FLNU0Afo="3600
TXT"_amazonses=Z4hkBaUBxTX/OLiVUkziHxOueox4sfpw+S249ieOi14="3600
TXT"docusign=943799bd-c6d5-464f-9fdc-7113e761b5e2"3600
TXT"v=spf1 include:spf.ti.com ip4:52.5.134.202 include:sendgrid.net include:service-now.com ip4:129.145.78.196 include:spf.protection.outlook.com ip4:148.163.150.75 ip4:148.163.154.28 include:spf-us.emailsignatures365.com ip4:44.203.112.2 -all"3600
TXT"webexdomainverification.=0033192c-1840-4ca0-9ee0-637c115a0c89"3600
TXT"_sfcruu4yx0wlpjuv2lj8uxh8n569v64"3600
TXT"ciscocidomainverification=31bc2cfc630297c963d60870e3c0db2d117ce271ff92733118636e199e6fbe82"3600
TXT"docusign=dd445e38-75bd-4999-8bb4-9475837a6acd"3600
TXT"_amazonses=dD3UkBgf4MnPHjgJyTUpiZO89KdkK2Z+LPJiFlLMU1A="3600
TXT"_fty7d52ouzmmkshg3uj9uix8uow9lzz"3600
TXT"autodesk-domain-verification=LjM1fAWH7TrNIhunt05V"3600
TXT"webexdomainverification.=1bac9ab1-5ad9-4845-941c-0b24a8601144"3600
TXT"webexdomainverification.=d90aaa66-5919-4a7d-8671-d005f04687c0"3600
TXT"webexdomainverification.GID5=eeea08ab-4ccd-475e-ba7a-69c38cf60701"3600
TXT"apple-domain-verification=7tJkLNXRI9Z0OVDp"3600
TXT"webexdomainverification.=c1bca203-ac7d-44a9-afd8-a5d9a13c16e1"3600
TXT"canva-site-verification=AbwcAdo3ie9ch6qYT3zg1g"3600

Checks

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