90/100 SECURITY SCORE

Certificate Information

Subject
CN=rolldown.rs
Issuer
C=US, O=Google Trust Services, CN=WE1
Valid From
June 15, 2026
Valid Until
September 13, 2026 52 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
ECDSA-SHA256
SHA-256 Fingerprint
7E:56:DB:2F:8B:30:FE:C6:B8:31:C4:A2:91:C1:E3:DD:65:59:D1:6B:D1:3C:9A:D3:5B:2B:BE:11:9B:7F:75:EE
Alternative Names

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
Excellent
max-age=31536000; includeSubDomains; preload
Content-Security-Policy
Basic
default-src; script-src; style-src; +8 more Analyze
Content-Security-Policy-Report-Only
Missing
Not configured Analyze
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Present
interest-cohort=()
Recommendations
  • Improve CSP by adding more specific directives and removing 'unsafe-inline'
  • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)

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

2 domains