DNS Gurus
Cached · just now
89/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 21
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Certificate Information

Subject
CN=heartinternet.uk
Issuer
C=US, O=Google Trust Services, CN=WE1
Valid From
April 06, 2026
Valid Until
July 05, 2026 89 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
ECDSA-SHA256
SHA-256 Fingerprint
F7:0E:F7:A3:9D:E4:28:23:1C:3C:CA:FE:F9:E6:C6:4D:83:44:1B:2D:AC:8A:BF:11:69:9E:3E:A6:D6:B9:B2:84
Alternative Names
4 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; preload
Content-Security-Policy
Cloudflare Web Analytics logo
Basic
default-src; script-src; style-src; +6 more Analyze
Content-Security-Policy-Report-Only
Missing
Not configured Analyze
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
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'
  • • 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