DNS Gurus
Open Cached · just now
86/100 SECURITY SCORE

Certificate Information

Subject
CN=teamwork.com
Issuer
C=US, O=Amazon, CN=Amazon RSA 2048 M01
Valid From
September 18, 2025
Valid Until
October 16, 2026 345 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
54:02:73:21:AD:F9:DB:42:A4:E3:E6:65:7B:86:CE:FA:0B:A9:6F:A2:9B:45:BC:1F:F2:BA:06:41:54:58:03:9E
Alternative Names
6 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
Good
max-age=31536000; includeSubDomains
Content-Security-Policy
Weak
frame-ancestors
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
  • • Significantly strengthen CSP directives
  • • 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
Configured (Restricts certificate issuance)
Current Issuer
Authorized (Matches CAA policy)
Authorized CAs
amazon.com digicert.com letsencrypt.org pki.goog
Wildcard CAs
letsencrypt.org pki.goog amazon.com
Recommendations
  • • Consider using critical flag (flags=128) for stricter CAA enforcement
  • • You have authorized 4 CAs - consider limiting to only the CAs you actively use
  • • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts

Subject Alternative Names

6 domains
teamwork.com *.teamwork.com *.us.teamwork.com

Other domains in certificate

twk.pm *.twk.pm *.us.twk.pm