Open
Cached
·
just now
85/100
SECURITY SCORE
Detected Technologies
Certificate Information
Subject
CN=startupbase.io
Issuer
C=US, O=Let's Encrypt, CN=YE1
Valid From
August 17, 2026
Valid Until
November 15, 2026
81 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
5D:1D:B3:A6:DC:E4:FF:80:E8:4B:B7:2D:0B:41:78:40:E2:08:2D:C5:15:80:AD:D5:CE:3A:C0:7F:F1:04:69:9F
Alternative Names
Security Configuration
TLS Protocols
TLS 1.0
TLS 1.1
TLS 1.2
TLS 1.3
Forward Secrecy
Supported
(Modern clients use PFS)
Warnings
- • TLS 1.1 is deprecated and should be disabled
- • TLS 1.0 is deprecated and should be disabled
HTTP Security Headers
Status
Strict-Transport-Security
Good
max-age=31536000 ; includeSubDomains
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Consider adding 'preload' to HSTS for maximum security
- • Add Content-Security-Policy header to prevent XSS attacks
- • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
- • 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