~/d/nrc.nl
// nrc.nl
Live audit across 8 checks. Cached 24h · generated less than a minute ago.
domain_grade
A
strong
85
/ 100 · across 8 checks
// points lost on:
security headers −12
whois −3
SSL Certificate
[ OK ]
Valid for 344 more days.
Issued by Sectigo Public Server Authentication CA OV R36 · 344 days left · TLSv1.3
DMARC Policy
[ OK ]
Strict DMARC policy enforced. Spoofed mail is rejected.
v=DMARC1; p=reject; pct=100; fo=1; ri=3600; rua=mailto:[email protected]; ruf=mailto:[email protected]
SPF Record
[ OK ]
Strict SPF (-all). Unauthorized senders are rejected.
2 lookups · all=-all
MX Records
[ OK ]
MX configured. Detected provider: Microsoft 365.
10 nrc-nl.mail.protection.outlook.com
Name Servers
[ OK ]
2 authoritative nameservers
eva.ns.cloudflare.com · phil.ns.cloudflare.com
WHOIS
[ WARN ]
Could not determine expiration date.
Registrar: team.blue nl B.V. · expires —
Security Headers
[ CRIT ]
Weak security posture (28/100) — missing: CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy
Score 28/100
[ embed_grade_badge ]
Domain grade: A — strong
markdown (github readme)
[](https://dombrains.com/d/nrc.nl)
html (any webpage)
<a href="https://dombrains.com/d/nrc.nl"><img src="https://dombrains.com/badge/nrc.nl/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/nrc.nl/ssl">
<img src="https://dombrains.com/badge/nrc.nl/dmarc">
<img src="https://dombrains.com/badge/nrc.nl/spf">
<img src="https://dombrains.com/badge/nrc.nl/mx">
<img src="https://dombrains.com/badge/nrc.nl/dnssec">
<img src="https://dombrains.com/badge/nrc.nl/security_headers">