DNS Gurus
Cached · just now
80/100 SECURITY SCORE

Certificate Information

Subject
C=US, ST=WA, L=Redmond, O=Microsoft Corporation, CN=forms.office.com
Issuer
C=US, O=Microsoft Corporation, CN=Microsoft TLS G2 RSA CA OCSP 04
Valid From
March 18, 2026
Valid Until
September 14, 2026 155 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA384-RSA
SHA-256 Fingerprint
89:FE:92:8D:F0:44:8D:87:3F:E5:A0:3F:8D:B7:57:98:82:44:57:86:CF:D8:A2:CB:D4:44:AA:CF:1C:BD:18:A1
Alternative Names
13 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
Present
max-age=2592000; includeSubDomains
Content-Security-Policy
Basic
object-src; script-src; base-uri; +3 more 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
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Improve CSP by adding more specific directives and removing 'unsafe-inline'
  • • 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