Linkedin.com Domain Trust Report

ACTIVE LinkedIn — world's largest professional networking platform

PRISM VERDICT

linkedin.com scores well overall but has attention areas in SSL Certificate and Email Auth. All other dimensions are healthy.

Last scanned 23m ago · Aug 22, 2026

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OVERALL TRUST SCORE

78 GRADE B

SSL warn

DNS Healthy

EMAIL Partial

SSL GRADE

Expires in 90d

DNS HEALTH

100%

8 nameservers

EMAIL AUTH

1/3

SPF · DKIM · DMARC

HEADERS

—

Score: 0/100

DOMAIN EXPIRY

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Monitoring...

Registration & ownership

WHOIS

Registrar	MarkMonitor Inc.
Registered	Nov 2, 2002
Updated	Oct 1, 2025
Expires	Nov 2, 2026
Status	client delete prohibit.client transfer prohibit.client update prohibit.server delete prohibit. +2

linkedin.com is registered with MarkMonitor Inc., since Nov 2, 2002. Domain registration expires Nov 2, 2026. Status: client delete prohibited.

Full WHOIS report

DNS records

DNS

A	130.211.32.14
AAAA	2600:1901:0:d5ad::
MX	mail-c.linkedin.com (pri 10)mail-d.linkedin.com (pri 10)mail.linkedin.com (pri 20)mail-a.linkedin.com (pri 10)
NS	dns1.p09.nsone.netdns2.p09.nsone.netdns3.p09.nsone.netdns4.p09.nsone.netns1-42.azure-dns.comns2-42.azure-dns.netns3-42.azure-dns.orgns4-42.azure-dns.info
TXT	448e0dc03e935ecf66d81f1ce3c26b2f2fea13756c031ffc4be91749107f3a79AFDVALIDATION=LinkedIn_cthqqp5zj8g86qf3h97heqitg2zc32bapple-domain-verification=Hp7LihDNsREwfHX9atlassian-domain-verification=dDed2VFvlDajBX8X22w52Jx/W/YLHR81SxUuraa9zNdz4aLjDS… +19 more

linkedin.com resolves to 130.211.32.14. Nameservers: dns1.p09.nsone.net, dns2.p09.nsone.net (+6). IPv6 (AAAA) is configured. Mail handled by 4 MX records.

Full DNS lookup

Hosting & network

NETWORK

IP address	130.211.32.14
IPv6	2600:1901:0:d5ad::
Nameservers	dns1.p09.nsone.netdns2.p09.nsone.netdns3.p09.nsone.netdns4.p09.nsone.netns1-42.azure-dns.comns2-42.azure-dns.netns3-42.azure-dns.orgns4-42.azure-dns.info
Protocol	HTTPS HTTP/2
IPv6 support	ENABLED

linkedin.com is hosted at 130.211.32.14. Full IPv6 support is configured. DNS is managed through 8 nameservers (dns1.p09.nsone.net).

Full IP analysis

SSL / TLS

SECURITY

Valid · B DigiCert Inc · expires Nov 21, 2026

90 days remaining

TLS 1.3 TLS 1.2 TLS 1.1 TLS 1.0

Full SSL report

Technology detected

STACK

Azure CDNHTTP/2HSTSTLS 1.3

Full tech scan

30-day availability

MONITORING

99.90% incidents detected

30d ago today

Email authentication

SPF PRESENT

DMARC policy: none NONE

DKIM PROBING

Full email auth report

Monitoring events

EVENTS

No monitoring events detected — all probes returning clean results.

Run a specific check on linkedin.com:

DNS lookup WHOIS SSL check Security headers Email auth Screenshot

DOMAIN INTELLIGENCE

What we know about Linkedin.com

Linkedin.com has been registered for 23 years (since Nov 2, 2002), managed through MarkMonitor Inc., ranked #19 globally by Tranco, categorised as professional network. Its current health score is 78/100 (grade B), reflecting strong SSL, DNS, and email authentication posture. As a professional network handling career and business identity data, its TLS configuration, DMARC enforcement, and security headers are essential trust anchors.

Security Posture Grade B

linkedin.com's security posture: SSL certificate needs attention — only 90 days until expiry.

SSL warn

Headers F

SSL expiry 90d

Health score 78/100

Email Authentication Partial

SPF is configured, restricting which servers can send email as this domain. DMARC is absent or set to "none" — no enforcement against email spoofing.

SPF Configured

DMARC policy none

Spoofable Yes

Network Infrastructure IPv6

linkedin.com resolves to 130.211.32.14, IPv6 is enabled, DNS is managed through dns1.p09.nsone.net and dns2.p09.nsone.net (+6 more), email routed through 4 MX records.

Primary IP 130.211.32.14

Nameservers 8

MX records 4

A records 1

DOMAIN LIFECYCLE

Registered Nov 2, 2002 23 years old

Last updated Oct 1, 2025

Expires Nov 2, 2026

Registrar MarkMonitor Inc.

SSL issued by DigiCert Inc

DomainScan monitors linkedin.com continuously — DNS every hour, SSL & email auth every 6 h, security headers every 12 h, WHOIS every 24 h. Every detected change triggers a severity-classified monitoring event. Refreshed 23m ago

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