~/d/linkedin.com
// linkedin.com
Live audit across 8 checks. Cached 24h · generated less than a minute ago.
domain_grade
A
strong
87
/ 100 · across 8 checks
// points lost on:
spf −5
security headers −5
dnssec −3
SSL Certificate
[ OK ]
Valid for 151 more days.
Issued by DigiCert Global G2 TLS RSA SHA256 2020 CA1 · 151 days left · TLSv1.3
DMARC Policy
[ OK ]
Strict DMARC policy enforced. Spoofed mail is rejected.
v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]
SPF Record
[ WARN ]
Soft fail (~all). Unauthorized senders flagged but not rejected. Consider -all for stronger protection.
2 lookups · all=~all
MX Records
[ OK ]
MX configured (4 record(s)).
10 mail-a.linkedin.com · 10 mail-c.linkedin.com · 10 mail-d.linkedin.com
Name Servers
[ OK ]
8 authoritative nameservers
dns1.p09.nsone.net · dns2.p09.nsone.net · dns3.p09.nsone.net
WHOIS
[ OK ]
Valid for 195 more days.
Registrar: MarkMonitor Inc. · expires 2026-11-02
Security Headers
[ WARN ]
Decent but improvable (57/100) — missing: Referrer-Policy, Permissions-Policy · weak: content-security-policy
Score 57/100
[ embed_grade_badge ]
Domain grade: A — strong
markdown (github readme)
[](https://dombrains.com/d/linkedin.com)
html (any webpage)
<a href="https://dombrains.com/d/linkedin.com"><img src="https://dombrains.com/badge/linkedin.com/grade.svg" alt="DomBrains grade: A"></a>
// re-queries our scoring engine · cached 1h at the edge · backlinks to this profile page
[ per_check_badges ]
<img src="https://dombrains.com/badge/linkedin.com/ssl">
<img src="https://dombrains.com/badge/linkedin.com/dmarc">
<img src="https://dombrains.com/badge/linkedin.com/spf">
<img src="https://dombrains.com/badge/linkedin.com/mx">
<img src="https://dombrains.com/badge/linkedin.com/dnssec">
<img src="https://dombrains.com/badge/linkedin.com/security_headers">