Open
Cached
·
just now
86/100
SECURITY SCORE
Certificate Information
Subject
CN=sos.pcshards.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
January 10, 2026
Valid Until
April 10, 2026
81 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
26:AB:E6:45:FA:8B:5D:B2:EF:45:A1:73:72:22:8D:BF:CC:DB:6C:D9:31:6C:E5:A6:42:B3:7C:C7:42:60:C2:2F
Alternative Names
Security Configuration
TLS Protocols
TLS 1.2
TLS 1.3
Forward Secrecy
Supported
(Modern clients use PFS)
HTTP Security Headers
Status
Strict-Transport-Security
Good
max-age=31536000; includeSubDomains
Content-Security-Policy
Good
default-src; script-src-elem; script-src; +4 more
default-src 'self' https://download.teamviewer.com/ https://dl.teamviewer.com/ https://cdn.cookielaw.org/ https://reportsession.teamviewer.com; script-src-elem 'self' 'unsafe-inline' https://cdn.cookielaw.org/ https://code.jquery.com data:; script-src data: 'unsafe-inline' 'self' https://code.jquery.com; object-src 'self'; style-src 'unsafe-inline' 'self' https://code.jquery.com; img-src 'self' https://code.jquery.com; frame-src 'self' *.teamviewer.com teamviewer8: tvassign1: tvsqcustomer1: tvcustomqs: intent:
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Consider adding 'preload' to HSTS for maximum security
- • Strengthen CSP by removing 'unsafe-eval'
- • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
- • 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