intel.com

Checked 22 October 2026, 09:20 UTC · via 8.8.8.8
!Passed with warnings
25 passed 2 warnings 0 failed 4 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2027-03-26

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
25 March 1986
Last changed
22 February 2026
Expires
26 March 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
ns1.intel.com, ns2.intel.com, ns3.intel.com, ns4.intel.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 2027-03-26 #3
    The registration is valid until 2027-03-26 (154 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited, client update 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

ns1.intel.com, ns2.intel.com, ns3.intel.com, ns4.intel.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.intel.com, ns2.intel.com, ns3.intel.com, ns4.intel.com
NS in the zone
ns1.intel.com, ns2.intel.com, ns3.intel.com, ns4.intel.com
NameserverAddressesNetwork (AS)Glue
ns1.intel.com192.55.52.33AS4983 INTEL-SC-AS - Intel Corporation, US192.55.52.33
ns2.intel.com134.191.190.35AS4983 INTEL-SC-AS - Intel Corporation, US134.191.190.35
ns3.intel.com192.198.148.13AS4983 INTEL-SC-AS - Intel Corporation, US192.198.148.13
ns4.intel.com192.102.198.240AS4983 INTEL-SC-AS - Intel Corporation, US192.102.198.240

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1.intel.com, ns2.intel.com, ns3.intel.com, ns4.intel.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: ns1.intel.com, ns2.intel.com, ns3.intel.com, ns4.intel.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.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS4983 (INTEL-SC-AS - Intel Corporation, 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
  • 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

pass

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.intel.com 192.55.52.33NOERROR, 165 ms, authoritativenoyes / yesrefused-
ns2.intel.com 134.191.190.35NOERROR, 28 ms, authoritativenoyes / yesrefused-
ns3.intel.com 192.198.148.13NOERROR, 207 ms, authoritativenoyes / yesrefused-
ns4.intel.com 192.102.198.240NOERROR, 160 ms, authoritativenoyes / yesrefused-

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.
  • ✓ 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

pass

serial 138104 · primary ns1.intel.com

Found

Primary (MNAME)
ns1.intel.com
Contact (RNAME)
hostmaster.intel.com
Serial
138104
Refresh / retry
43200 s / 300 s
Expire
1209600 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
ns1.intel.com (192.55.52.33)138104
ns2.intel.com (134.191.190.35)138104
ns3.intel.com (192.198.148.13)138104
ns4.intel.com (192.102.198.240)138104

Checks

  • ✓ Serial 138104 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 12h, retry 5m, expire 14d, negative TTL 15m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.intel.com is one of the listed nameservers.
  • ✓ Contact hostmaster@intel.com #25
    The SOA RNAME hostmaster.intel.com means hostmaster@intel.com.
  • ✓ Counter serial #26
    The serial 138104 is a plain counter.

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

111 records at the apex

Found

Read from
192.55.52.33:53
TypeValueTTL
SOAns1.intel.com. hostmaster.intel.com. 138104 43200 300 1209600 90010800
NSns4.intel.com.900
NSns2.intel.com.900
NSns1.intel.com.900
NSns3.intel.com.900
A13.91.95.74300
MX100 mgamail.eglb.intel.com.900
TXT"bluebeam-verification=ocvjzp7gd8fvt0qv85zgh1og5o3nl9"900
TXT"00Do0000000L7IX=1TBV40000000G8I"900
TXT"docusign=46a68707-4a57-4782-bf77-1373777e73e8"900
TXT"00DWJ000008Mljd=1TBWJ0000000Di1"900
TXT"00DDD000001fKur=1TBdh000000091h"900
TXT"00D2f0000008gWF=1TBgP0000000Ac5"900
TXT"00D3F0000000Nmr=1TBRu0000000dEH"900
TXT"ms-domain-verification=63e408c2-11b8-4d5f-939c-d71b7d7e3d91"900
TXT"uber-domain-verification=233c950b-1660-447a-a8bc-a0bb20559c05"900
TXT"00D040000000QYW=1TBDc0000008OLs"900
TXT"00D3k000000ub4r=1TBQQ00000001ov"900
TXT"e94b687f1bd60e6d49bee301361913c22b1aaf63beb963f10826f8472fced7f1"900
TXT"00Do0000000aRcf=1TBcv000000029t"900
TXT"google-site-verification=HZCQBwMXW2bQcmIUCMcxovy1yMxkEcu1mGA2spyLARo"900
TXT"ibmid=b4542555-fac2-4d7d-a8ad-f4d3ee20ba22"900
TXT"00DRL00000KHFn7=1TBRL0000000K1x"900
TXT"cloudhealth=1659ead7-5c47-4817-a0d3-94b456169734"900
TXT"mongodb-site-verification=p6n0w6nnOPjCeuCnsW0Xc4UgAh4jfMHo"900
TXT"chariot=chariot+intel@praetorian.com"900
TXT"qqmail-site-verification=de1a8d707315b7e0442efe7a2812e10457a771ccdeb"900
TXT"00D2E000001FGQm=1TBcx000000015l"900
TXT"00D52000000L89a=1TBVa00000000Uf"900
TXT"00D2i0000008d6j=1TBTH00000006IL"900
TXT"apple-domain-verification=OAQrNBk5trF8X7H3"900
TXT"google-site-verification=tCdhchtzK9L-sDZA5OazdRCeK5HrqgOJ9kZkzdbtmd8"900
TXT"google-site-verification=33gwj8vJs6_J5adGCJ3IWWAm5C4MeM-ZUy5uzNIEX4s"900
TXT"00D2f0000000uGy=1TBOt0000000T21"900
TXT"Dynatrace-site-verification=03bc0e9d-4899-45bc-8fb6-963829cd5cf1__m1rmdc12bet67grogkur4kat1r"900
TXT"00DKQ0000000ni0=1TBKQ000000KykT"900
TXT"00DDS000001gRdW=1TBOu0000000A2b"900
TXT"cursor-domain-verification-5h3fn5=uPEBnPX0FRt8elKd8xtpotTsg"900
TXT"bcd9860a-1369-4d5c-ae5e-e9320d79f083"900
TXT"google-site-verification=pIbeNdxnfMeMUhiz7Ad6UlkU08jIlagr9h55GoQSw6I"900
TXT"00DU0000000YT3c=1TBVz00000001CD"900
TXT"00D23000000Fw7O=1TBWH0000000I6b"900
TXT"00D8A0000005uU8=1TBWA0000004VV3"900
TXT"google-site-verification=_BVjdlNMi517YkaWfQ8SOCUxjGyrK4X4tkMeCqieedQ"900
TXT"00Ddi000004mJ65=1TBdi0000000FK1"900
TXT"00DcV000002xNXJ=1TBcV00000000BJ"900
TXT"onetrust-domain-verification=09f55ff1baba439b9174d37afefcaf2d"900
TXT"00Dgy0000000YzN=1TBgy00000000WH"900
TXT"00D7h000000HD25=1TBWL00000005Az"900
TXT"atlassian-domain-verification=ZOexs0awZv94sBIlIBoxjhW8lXHZ24atEWqaXZtHXJyUNyrJRFD2TUyajwtz1pL1"900
TXT"00DVB0000075KEz=1TBVB00000009Un"900
TXT"slack-domain-verification=1Cz4MCZJuypQf1rh9T3qlqJDFCRYuqZkrOUh5kL4"900
TXT"00D2D000000E9ZK=1TBWA0000004VGX"900
TXT"00DDn000003r4Pl=1TBQQ000000021p"900
TXT"atlassian-domain-verification=qHOhH89J6Mh62tAEcDaX6swdU8wX1iJZUUlaDWdfkcma0KJ1qVgrfNrxbtBvAOqH"86400
TXT"adobe-idp-site-verification=12d5bea8-aab4-4b2e-9c77-8f69ad4734f0"900
TXT"atlassian-domain-verification=ApWZ5iliIwA1g0Ka7JhMa7BP0qBkz/WIaMoGiJqvekBz2LJlc2QD7foiLd2h72Rv"900
TXT"00D4B0000009zrY=1TBdh00000007JF"900
TXT"00D8c000006KOns=1TBWQ000000023R"900
TXT"perplexity-ai-domain-verification-r24pxy=rliweb0yORQ8UxAD7URTfKgdu"900
TXT"MS=B03F616C5688CE657CC2FA94EF4E72109431092B"3600
TXT""900
TXT"atlassian-domain-verification=dfPURS8tP5ncA5xHnEv8nyfRQZzwLH6RRKWNXRHLwny6EBpmC7pwMz1xFLmi/EWH"900
TXT"meltwater_sso_20240930"900
TXT"openai-domain-verification=dv-lOXezFecTzWt8rrZT7dTGVFq"900
TXT"00D1I000000nTd4=1TBQQ000000017N"900
TXT"00DU0000000JvXT=1TBPb00000000cj"900
TXT"00Dg0000006V1T1=1TBdh0000000CMA"900
TXT"autodesk-domain-verification=EKQ8nv86UxiJDM9bI18R"900
TXT"00DQL00000NjvOH=1TBQL0000000pCD"900
TXT"00DO4000007MxTd=1TBO40000000KA2"900
TXT"00Dbf000005BKtN=1TBbf0000000HDm"900
TXT"00D36000000rSuA=1TBPe00000002zV"900
TXT"00D830000008aVT=1TBcr00000000zJ"900
TXT"I+FotdhF45rEb5bSOZyqcRNYMIuqDOEcWLtvZ8cb5RKf4p2v+6laazMU1bT8dq88ia98W9aUKYirlD7+tv0Z/A=="900
TXT"00D15000000EnBl=1TB7y00000000uT"900
TXT"docusign=ff4d259b-5b2b-4dc7-84e5-34dc2c13e83e"900
TXT"00Dj0000001tZRR=1TBa6000000012X"900
TXT"v=spf1 include:_spf.intel.com -all"900
TXT"08428d8e-d6dd-4d4f-acca-42955adb18cf"900
TXT"00D780000004Z0C=1TBVZ0000000M5N"900
TXT"09/10/2024"900
TXT"00D2f0000008gWP=1TBgP00000003kH"900
TXT"Dynatrace-site-verification=e1eb3fe5-f14a-4a0c-b8b6-1c5f380cb804__dfadqbk4o2ngu8n8bho3kom0t"900
TXT"00D8F0000004i7a=1TBW400000002kz"900
TXT"00Dco000004OBXu=1TBco00000000BJ"900
TXT"00D8C0000008hms=1TBDZ0000000022"900
TXT"teamviewer-sso-verification=c0fca594575d4ae58cb4d02d7ede2b3e"900
TXT"00Df40000004A8x=1TBVX00000001Tx"900
TXT"f076027a-8022-4cd7-9c52-373ef56f9848"900
TXT"00Ddy000003k0uX=1TBdy00000009cn"900
TXT"00DC00000016oM2=1TBcw00000001wz"900
TXT"00D6w0000004cRG=1TBVA0000000QTx"900
TXT"00D36000000K1su=1TBQQ00000001qX"900
TXT"google-site-verification=xQ71LIpBIRMAhe6YyAjaNEeqOHF6VOCCLJD-xBsnwtU"900
TXT"00DBZ0000008j8l=1TBcn00000001Yn" ""900
TXT"docker-verification=ce0bc02e-16dd-47c2-bb3e-7f6d680dcd47"900
TXT"onetrust-domain-verification=da03b7174c53436587dd407887778160"900
TXT"00D2i0000000pFZ=1TBdh000000079Z"900
TXT"00D5C000000NdC1=1TBce00000001H3"900
TXT"anthropic-domain-verification-ygt3tf=Q9RHyPSxi5ES3lSyMrb5aJ3WV"900
TXT"google-site-verification=pv06NhezCJEfqLpFMO8YKqC6Ye1q85TiFq_S5qUUdxE"900
TXT"onetrust-domain-verification=ee0aec8e25a047c185d8fff907e052c2"900
TXT"00D7j0000004Xkw=1TBdh00000006VF"900
TXT"00D6w0000004eS8=1TBdh0000000EKj"900
TXT"00DcV000002z2LV=1TBcV00000005XZ"900
TXT"00DHu000002tYyb=1TBcv00000004lB"900
TXT"canva-site-verification=Udnsc-EibCkG6QIOjQ53WQ"900
TXT"00DE0000000Hxbi=1TBPY00000002OP"900
TXT"00D1I000003pf77=1TBVv00000000ZV"900
TXT"fastly-domain-delegation-RIA8ruNVQ8qqxgwlPyD3-485843-2022-27-04"900

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 15m, NS 15m. The NS TTL at the parent is 2d and in the zone 15m; 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