DNS Gurus
Cached · 1h ago
92/100 SECURITY SCORE

Certificate Information

Subject
CN=developer.avalara.com
Issuer
C=US, O=Amazon, CN=Amazon RSA 2048 M03
Valid From
March 13, 2025
Valid Until
April 11, 2026 61 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
CF:57:32:EE:38:6E:64:E3:88:27:54:9B:EC:BD:46:0B:7E:7C:3F:56:CA:FE:BB:E1:73:E2:8E:5A:67:3B:34:52
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
Excellent
max-age=63072000; includeSubDomains; preload
Content-Security-Policy
Weak
script
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer
Permissions-Policy
Present
fullscreen=(self), clipboard-read=(self), clipboard-write=(self)
Recommendations
  • • Significantly strengthen CSP directives

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