DNS Gurus
Open Cached · just now
95/100 SECURITY SCORE

Certificate Information

Subject
C=DE, ST=Rheinland-Pfalz, O=IONOS SE, CN=analytics.ionos.de
Issuer
C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA OV R36
Valid From
July 22, 2025
Valid Until
July 22, 2026 258 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
96:A9:05:1C:4A:66:13:44:26:CF:63:2E:77:A2:B4:B7:93:5F:2E:53:5D:0D:72:46:BD:49:DC:D8:C8:5D:60:2F
Alternative Names
8 domains

Security Configuration

TLS Protocols
TLS 1.0 TLS 1.1 TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)
Warnings
  • • TLS 1.1 is deprecated and should be disabled
  • • TLS 1.0 is deprecated and should be disabled

HTTP Security Headers

Status
Strict-Transport-Security
Good
max-age=31536000 ; includeSubDomains
Content-Security-Policy
Strong
default-src; img-src; font-src; +7 more
X-Frame-Options
Present
ALLOW-FROM https://analytics.ionos.co.uk:443/
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Missing
Not configured
Recommendations
  • • Consider adding 'preload' to HSTS for maximum security
  • • 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