DNS Gurus

SSL Verification Bypassed

The server's SSL certificate could not be verified. The analysis was completed using insecure mode. Data may be less reliable.

Reason:

Hostname Mismatch - certificate is issued for firebaseapp.com, *.firebaseapp.com, not for www.sickdevs.com

Cached · just now
76/100 SECURITY SCORE

Certificate Information

Subject
CN=firebaseapp.com
Issuer
C=US, O=Google Trust Services, CN=WR4
Valid From
January 05, 2026
Valid Until
April 05, 2026 87 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
3A:62:4E:93:B7:7D:A8:B0:50:B2:90:C3:63:E3:F5:68:3F:DF:AA:1C:68:96:64:C3:67:AC:BC:FA:BF:09:F3:A3
Alternative Names
2 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=31556926
Content-Security-Policy
Missing
Not configured
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
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • 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
Configured (Restricts certificate issuance)
Current Issuer
Not Authorized (Potential misconfiguration)
Authorized CAs
globalsign.com letsencrypt.org digicert.com comodoca.com
Wildcard CAs
globalsign.com comodoca.com letsencrypt.org digicert.com
CAA Issues
  • • CRITICAL: Current certificate issuer 'C=US, O=Google Trust Services, CN=WR4' is NOT authorized by CAA records. Authorized CAs: globalsign.com, letsencrypt.org, digicert.com, comodoca.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

2 domains
firebaseapp.com *.firebaseapp.com