Open
Cached
·
just now
80/100
SECURITY SCORE
Certificate Information
Subject
CN=plasmic.app
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
December 17, 2025
Valid Until
March 17, 2026
58 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
0C:F0:44:76:F4:F9:4F:B8:EE:67:2C:70:E9:33:5F:79:43:B6:05:94:84:F8:CF:0B:04:2F:DD:06:E4:BA:EB:5A
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=63072000
Content-Security-Policy
Basic
default-src; connect-src; img-src; +4 more
default-src 'self' https://*.plasmic.app; connect-src 'self' https://*.plasmic.app https://*.amplitude.com; img-src 'self' https://*.plasmic.app https://avatars.githubusercontent.com https://pbs.twimg.com data:; frame-src 'self' https://*.plasmic.app https://*.youtube.com https://*.plasmic.site; font-src 'self' https://*.plasmic.app https://fonts.gstatic.com data:; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://*.plasmic.app https://*.amplitude.com; style-src 'self' 'unsafe-inline' https://*.plasmic.app https://fonts.googleapis.com;
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Improve CSP by adding more specific directives and removing 'unsafe-inline'
- • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
- • Add X-Content-Type-Options: nosniff
- • 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