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Total

DNS

Email

Security

Network

100

Availability

Domaingm.com

IPv42

IPv60

MX records1

StatusActive

Domain technical report

Access Denied

gm.com

Generated: 2026-08-09T01:42:27-05:00 · Cached result

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IPv42

IPv60

MX1

NS4

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

2 IPv4 address(es) detected.

IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

4 NS record(s); 2 or more required.

✓

SOA record10 / 10 pts · Dns

Authoritative zone record.

DNSSEC chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓

DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓

MX records20 / 20 pts · Mail

1 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

✓

DMARC25 / 25 pts · Mail

DMARC policy published.

✓

DKIM20 / 20 pts · Mail

A DKIM selector was verified.

MTA-STS0 / 5 pts · Mail

Mail transport policy.

TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

165 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers4 / 35 pts · Security

1 of 9 evaluated headers detected.

✓

PTR reverse DNS30 / 30 pts · Network

PTR: tld-redir-prdwx.ext.gm.com

✓

IPv4 diversity35 / 35 pts · Network

Two or more IPv4 addresses receive full points.

IPv6 connectivity0 / 35 pts · Network

AAAA availability.

✓

DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓

HTTP response40 / 40 pts · Availability

HTTP/2 200

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

2 record(s)

198.208.73.147
198.208.74.205

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

1 record(s)

10 gm-com.mail.protection.outlook.com.

TXT

42 record(s)

"apple-domain-verification=qfLGCuGVB9MNcnZB"
"1password-site-verification=KNGEIH6RINCT5FDARIERDBOYNA"
"00DHs000001RRtUMAW"
"anthropic-domain-verification-ecpkx8=CXV5qzE75REiTlME1IwE4Nahh"
"adobe-idp-site-verification=6f3fc819-27be-49ff-814f-5633a77feb01"
"_pfkrkh3wcwaxlfw6wlibvjo9b3d5frt"
"docusign=38a82cf6-8f09-4618-a84d-bf1ab1ec96a2"
"_zm3u00cfil048hf18u9653ouqnv70wv"
"http://saml-domain-challenge.ce43f1d9-1e75-4f9c-afb1-4c0d9d4cbdae.d1c052ea-6972-44df-a07d-1cb5e4e6fa42.gm.com/"
"_vj3izsxrqpqdt6blbuyzgynk5fwrde9"
"docusign=ec2c6ac0-3ea9-4cd8-9fc1-bd8b9bfd44b7"
"00DDn00000DCkt8MAD"
"paloaltonetworks-site-verification=1bd7a700c1adf1303827f7273d003f9ec19a9778f82b6f03ef056989fb1ba29d"
"shopify-verification-code=7O7Gt3DFr8dnh4csFpAVSDR9lAnbEz"
"_zux2pth5au6csqj2djeapbezh6cjtel"
"_cgm6o3m68c4lgeu3z0lc9ufi3mkc3lp"
"_8fzr26d6s926dwye8v5aker9tqk0y0y"
"045455f0-44c1-4d1e-9594-05d9a9e97588"
"v=spf1 mx include:_spf-a.gm.com include:_spf-b.gm.com include:_spf.google.com ~all"
"ms-domain-verification=071c9c57-ce6c-4168-8c1d-6da84dcf355b"
"atlassian-domain-verification=14cR7NMGmaO7VfcpEi/w072k18LX4v2/dRMcPITOfHZFIaVnC43a32a7Qs6bp/sC"
"_cp3lxqkr51mtlirvm9ccim1lq46amvt"
"cursor-domain-verification-yag1zr=r34ovZYqGvA0YUcnWqLmQd2SQ"
"facebook-domain-verification=t0s2yc1s7odfk8xr8fbkgrr5v6e6qs"
"jamf-site-verification=jEuuVkEl9ZSOYjy3Lh1juQ"
"google-site-verification=oI1up6UEIhqdixWpvH5Dz1c03tAiHxdr7CU9Q8TW9Bw"
"h1-domain-verification=txPFcRgewnCQ8LP8p9F5DAcnZ3s5SHKfTYGscFvRRD1B43dP"
"shopify-verification-code=eFaGJBD2CVaAGaIUc9HfGhHpdTxqWH"
"klaviyo-site-verification=XAXcqt"
"ms-domain-verification=f50d6db8-c406-43a0-85ea-e3ae0e8a99ec"
"notion-domain-verification=mxZVYY1ZYBXBwaIHAQQZNkWCHu6rV7PZb3hLoI1oQb5"
"h1-domain-verification=z59tUBntgp97oGqWAsvxhev8ofPK9cAUXfpP2TPSFEA9VQqw"
"google-site-verification=Q5RZFmlSy7d_7EQvpsoXW7vJS-r5XUvjljGtcqxPpZs"
"intersight=1f6c6db48c35dd80ebd7bb08a72ab86ab5f55b758c8f7ad1fd58d2bc31696654"
"cisco-ci-domain-verification=5ca8f1233bc23dd0a555197499313c2b4286c869bfbd49b379e75d3fbe978744"
"ms-domain-verification=661f762b-dd1b-44a2-9376-5e2e5f4c9151"
"d365mktkey=20xJOAYDeKbYxgMBrUYnxmdqFxarjssMFIOPoqukVSgx"
"F9CFA63362B9C5D32025ED40C2E66C64F869D746EDDCE57AE8DB9D4DA7B5E0D4"
"_uqdcnylfpyx2cgotaae8bxk2f10cecm"
"openai-domain-verification=dv-WjaR4THCJWQaiEvynYeZumfG"
"vAagMcu5BrSKhCW7x13gtLaUYdNlBwZmq5rzfFSEZxNErq9Ryxw0VP8vKCOtq+zZpStIfk18NRj2nSqP/qvVRA=="
"atlassian-domain-verification=aaziLZUx/quz/UkqGaX57IZaDo2yc/yVsywalcZdjOcm5AQLpc/R2FWdPfVPCtg8"

NS

4 record(s)

nsx4.gm.com.
nsx2.gm.com.
nsx3.gm.com.
nsx1.gm.com.

SOA

1 record(s)

nsx1.gm.com. dnsadm.gm.com. 74042 3600 3600 1209600 300

SPF

Configured

v=spf1 mx include:_spf-a.gm.com include:_spf-b.gm.com include:_spf.google.com ~all

DMARC

Configured

v=DMARC1;p=reject;fo=1;ri=3600;rua=mailto:dmarc_rua@emaildefense.proofpoint.com,mailto:dmarc_rua@gm.com;ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com,mailto:dmarc_ruf@gm.com

DKIM

Selector selector1

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDNW1zpY3vNDnHTv1gCTKc3lMopqKLdFIAwZNdPwz9XhbTnt/yz/ReiUCo9g0JxOwrLPx2S+l4bsDJN/Vs/afetxh4KkUbihAFbriNziNqLFJaWbaonQaqsYjstf/Pd8JZ2KyD7H/vLGJD8u89HaPji+7Gc1+LpNThJ1HurPh9UgQIDAQAB; n=1024,1457652227,1473549827

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Access Denied

Description

Final URL

https://www.gm.com/

HTTP status

403

HTTP

Status

HTTP/2 200

Final URL

https://www.gm.com/

Version

Server

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

DigiCert Inc

gm.com

Valid from

2026-07-06T19:00:00-05:00

Valid until

2027-01-21T17:59:59-06:00

Days remaining

165

Protocol

TLSv1.2

Cipher

ECDHE-RSA-AES128-GCM-SHA256

Security headers

1 active

—

HSTSNot detected

—

Content Security PolicyNot detected

—

X-Content-Type-OptionsNot detected

✓

X-Frame-OptionsImplemented

—

Referrer PolicyNot detected

—

Permissions PolicyNot detected

—

Cross-Origin-Opener-PolicyNot detected

—

Cross-Origin-Embedder-PolicyNot detected

—

Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent

✓

Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

198.208.73.147, 198.208.74.205

35,02 ms

Cloudflare

1.1.1.1

198.208.73.147, 198.208.74.205

34,34 ms

Quad9

9.9.9.9

198.208.73.147, 198.208.74.205

53,36 ms

OpenDNS

208.67.222.222

198.208.73.147, 198.208.74.205

33,50 ms

AdGuard

94.140.14.14

198.208.73.147, 198.208.74.205

60,60 ms

IP, geolocation and ASNAssociated network information

198.208.73.147

No data

success

country

region

city

asn

organization

isp

198.208.74.205

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

gm-com.mail.protection.outlook.com

Port 25: Closed/unreachable - 26.7 ms - 
Port 465: Closed/unreachable - 4034.9 ms - 
Port 587: Closed/unreachable - 4035.7 ms -

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