DNS Gurus
Cached · just now
75/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 1
Let's Encrypt logo Let's Encrypt

Certificate Information

Subject
CN=grenzen.com
Issuer
C=US, O=Let's Encrypt, CN=YE1
Valid From
September 13, 2026
Valid Until
December 12, 2026 45 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
DB:72:93:3D:00:62:22:27:3D:42:AB:DC:E9:19:43:2C:BF:53:FD:82:CB:FD:4A:09:4E:13:E4:57:8C:18:F5:BA
Alternative Names
75 domains

Security Configuration

TLS Protocols
TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured Analyze
Content-Security-Policy-Report-Only
Missing
Not configured Analyze
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
  • • Add X-Content-Type-Options: nosniff
  • • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
  • • Consider adding Permissions-Policy to control browser features

CAA Records (Certificate Authority Authorization)

CAA Records
Not Configured (Any CA can issue certificates)
CAA Issues
  • • No CAA records configured - any CA can issue certificates
Recommendations
  • • Implement CAA records to restrict which CAs can issue certificates for your domain
  • • This adds an extra layer of security against unauthorized certificate issuance
  • • Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
  • • Consider adding 'iodef' record to receive security incident reports

Subject Alternative Names

75 domains
grenzen.com *.grenzen.com *.keine.grenzen.com

Other domains in certificate

*.admin.guidedtoursvenice.it *.blog.guidedtoursvenice.it guidedtoursvenice.it *.guidedtoursvenice.it *.hostmaster.guidedtoursvenice.it
*.data.hdchina.club *.demo.hdchina.club hdchina.club *.hdchina.club *.staging.hdchina.club *.test.hdchina.club *.uat.hdchina.club *.veterans.hdchina.club
*.backup.intercampus.com *.beta.intercampus.com *.hostmaster.intercampus.com intercampus.com *.intercampus.com *.mail.intercampus.com *.pyroscope.intercampus.com *.sitemap.intercampus.com *.sitemaps.intercampus.com *.ww1.intercampus.com *.ww11.intercampus.com *.ww16.intercampus.com *.ww17.intercampus.com *.ww25.intercampus.com *.ww38.intercampus.com
*.analytic.lastminuteitaliano.it *.api.lastminuteitaliano.it *.app.lastminuteitaliano.it *.board.lastminuteitaliano.it *.dashboard.lastminuteitaliano.it *.demo.lastminuteitaliano.it *.hostmaster.lastminuteitaliano.it *.internal.lastminuteitaliano.it lastminuteitaliano.it *.lastminuteitaliano.it *.remote.lastminuteitaliano.it *.report.lastminuteitaliano.it *.superset.lastminuteitaliano.it *.wwww.lastminuteitaliano.it
*.development.letstalk.co.in letstalk.co.in *.letstalk.co.in *.mail.letstalk.co.in *.w.letstalk.co.in *.ww16.letstalk.co.in *.www.letstalk.co.in
*.api.mercadodeauto.com *.dev.mercadodeauto.com *.hostmaster.mercadodeauto.com *.mail.mercadodeauto.com mercadodeauto.com *.mercadodeauto.com *.random.mercadodeauto.com *.sitemap.mercadodeauto.com *.ww11.mercadodeauto.com *.ww16.mercadodeauto.com *.ww17.mercadodeauto.com *.ww25.mercadodeauto.com *.ww38.mercadodeauto.com
*.32.topekacountryweddings.com topekacountryweddings.com *.topekacountryweddings.com
*.portal.txlending.com txlending.com *.txlending.com
*.ww16.youlisten.co *.ww38.youlisten.co youlisten.co *.youlisten.co