~/d/stackoverflow.com
// stackoverflow.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 87 more days.
Issued by E7 · 87 days left · TLSv1.3
DMARC Policy
[ OK ]
Strict DMARC policy enforced. Spoofed mail is rejected.
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
SPF Record
[ WARN ]
Soft fail (~all). Unauthorized senders flagged but not rejected. Consider -all for stronger protection.
1 lookups · all=~all
MX Records
[ OK ]
MX configured. Detected provider: Google Workspace.
1 aspmx.l.google.com · 5 alt1.aspmx.l.google.com · 5 alt2.aspmx.l.google.com
Name Servers
[ OK ]
2 authoritative nameservers
damian.ns.cloudflare.com · sureena.ns.cloudflare.com
WHOIS
[ OK ]
Valid for 287 more days.
Registrar: CSC Corporate Domains, Inc. · expires 2027-02-02
Security Headers
[ WARN ]
Decent but improvable (50/100) — missing: X-Content-Type-Options, Referrer-Policy, Permissions-Policy
Score 50/100
[ embed_grade_badge ]
Domain grade: A — strong
markdown (github readme)
[](https://dombrains.com/d/stackoverflow.com)
html (any webpage)
<a href="https://dombrains.com/d/stackoverflow.com"><img src="https://dombrains.com/badge/stackoverflow.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/stackoverflow.com/ssl">
<img src="https://dombrains.com/badge/stackoverflow.com/dmarc">
<img src="https://dombrains.com/badge/stackoverflow.com/spf">
<img src="https://dombrains.com/badge/stackoverflow.com/mx">
<img src="https://dombrains.com/badge/stackoverflow.com/dnssec">
<img src="https://dombrains.com/badge/stackoverflow.com/security_headers">