DNS Gurus
Cached · just now
92/100 SECURITY SCORE

Certificate Information

Subject
CN=thinktwit.com
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
December 17, 2025
Valid Until
March 17, 2026 55 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
B3:58:24:5E:C7:B8:51:78:DB:0B:2A:F2:DA:14:3B:BB:C5:99:2E:6D:6D:6E:42:F9:4C:59:E3:B1:A8:71:6B:88
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
Excellent
max-age=31536000; includeSubDomains; preload
Content-Security-Policy
Basic
default-src; script-src; style-src; +4 more
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Missing
Not configured
Recommendations
  • • 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

Subject Alternative Names

4 domains
thinktwit.com

Other domains in certificate

centerschoolpta.org
eastside.primaryconnect.org primaryconnect.org