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:

Invalid Certificate - the server's certificate is malformed or invalid

Open Cached · just now
74/100 SECURITY SCORE

Certificate Information

Subject
C=RU, ST=Tilda_DNS_Service, L=Tilda_DNS_SelfSign, O=Tilda Publishing, OU=DNS Default Address, CN=tilda.dns.domain.ok, [email protected]
Issuer
C=RU, ST=Tilda_DNS_Service, L=Tilda_DNS_SelfSign, O=Tilda Publishing, OU=DNS Default Address, CN=tilda.dns.domain.ok, [email protected]
Valid From
November 17, 2021
Valid Until
November 16, 2026 347 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
DF:22:B6:81:0E:28:33:B3:F7:05:37:26:C2:52:CE:B6:C8:19:08:C1:66:B5:FB:DB:96:AF:BB:50:8C:A3:8E:EE

Security Configuration

TLS Protocols
TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
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
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • 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
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