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 capdebthelp.org, capjobclubs.org, caplifeskills.org, capmoneycourse.org, capscotland.org, capuk.co.uk, capuk.org, christiansagainstpoverty.org, www.capdebthelp.org, not for dev.capuk.org

Cached · just now
87/100 SECURITY SCORE

Certificate Information

Subject
CN=capuk.org
Issuer
C=US, O=Let's Encrypt, CN=E8
Valid From
November 28, 2025
Valid Until
February 26, 2026 61 days
Public Key
ECDSA 384 bit (P-384) Strong
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
3C:55:DE:00:74:8C:DC:52:28:74:53:50:13:3C:52:98:C6:B5:7D:7F:6B:14:1F:3E:C7:05:93:E2:5A:9A:FF:88
Alternative Names
16 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=31536000
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer-when-downgrade
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
  • • 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