LI

Linkedin.com Domain Trust Report

ACTIVE LinkedIn — world's largest professional networking platform
PRISM VERDICT

linkedin.com shows moderate health — SSL Certificate and Domain Expiry and Email Auth and Security Headers need attention. Review the breakdown below.

Last scanned 29m ago · Sep 21, 2026
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OVERALL TRUST SCORE
72 GRADE C
SSL warn
DNS Healthy
EMAIL Strong
SSL GRADE
C
Expires in 60d
DNS HEALTH
100%
8 nameservers
EMAIL AUTH
2/3
SPF · DKIM · DMARC
HEADERS
C
Score: 60/100
DOMAIN EXPIRY
42d
Nov 2, 2026
Warning conditions detected — some monitoring checks are in warning state.

Registration & ownership

WHOIS
Registrar MarkMonitor Inc.
Registered Nov 2, 2002
Updated Oct 1, 2025
Expires Nov 2, 2026 42d
Status client delete prohibit.server delete prohibit.
linkedin.com is registered with MarkMonitor Inc., since Nov 2, 2002. Domain registration expires Nov 2, 2026 (42 days). 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 · C DigiCert Inc · expires Nov 21, 2026
60 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
99.50% incidents detected
30d ago today

Email authentication

EMAIL
Full email auth report

Monitoring events

6 total EVENTS
Delisted from 1 RBL: zen.spamhaus.org 2d ago
low rep BLACKLIST_DELISTED_RBL
listingsrblMatrix
Listed on major RBL: zen.spamhaus.org 2d ago
crit rep BLACKLIST_LISTED_MAJOR_RBL
listingsrblMatrix
DMARC `sp=` not set while `p=reject` — subdomains still spoofable 4d ago
medium email SUBDOMAIN_POLICY_GAP
sp
Run a specific check on linkedin.com:
DNS lookup WHOIS SSL check Security headers Email auth Screenshot
DOMAIN LIFECYCLE
Registered Nov 2, 2002 23 years old
Last updated Oct 1, 2025
Expires Nov 2, 2026 42 days remaining
Registrar MarkMonitor Inc.
SSL issued by DigiCert Inc
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 72/100 (grade C) — generally healthy but with some configuration gaps worth reviewing. 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 C

linkedin.com's security posture: SSL certificate needs attention — only 60 days until expiry; security headers have gaps; no blacklist entries found.

SSL warn
Headers C
SSL expiry 60d
Health score 72/100
Email Authentication Strong

SPF is configured, restricting which servers can send email as this domain. DMARC policy is set to "reject" — spoofed emails are rejected.

SPF Configured
DMARC policy reject
Spoofable No
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
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 29m ago
Related tools: WHOIS Lookup DNS Records SSL Checker Security Headers Blacklist Check DMARC Checker Trust Score
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