Open
Cached
·
just now
86/100
SECURITY SCORE
Detected Technologies
Certificate Information
Subject
CN=captainup.com
Issuer
C=US, O=Let's Encrypt, CN=E7
Valid From
April 19, 2026
Valid Until
July 18, 2026
66 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
23:B3:CF:24:B9:3E:6D:93:3C:D7:70:54:FB:20:34:19:05:60:47:8E:00:AC:E1:82:1B:AE:F6:5F:6A:26:D3:A0
Alternative Names
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=15552000
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Present
nosniff, nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Present
autoplay=*, camera=(self), cross-origin-isolated=*; +9 more
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Significantly strengthen CSP directives
- • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
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