DNS Gurus
Cached · just now
93/100 SECURITY SCORE

Certificate Information

Subject
CN=aha.io
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
January 04, 2026
Valid Until
April 04, 2026 66 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
D2:1E:32:38:BE:EB:51:07:30:2C:36:AF:ED:84:D7:1E:11:09:8F:AD:0D:3B:6E:B1:D1:29:60:A0:7A:92:64:15
Alternative Names
32 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
Excellent
max-age=63072000; includeSubDomains; preload
Content-Security-Policy
Basic
default-src; script-src; worker-src; +9 more
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Present
geolocation=(), microphone=(), payment=()
Recommendations
  • • Improve CSP by adding more specific directives and removing 'unsafe-inline'

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