Open
Cached
·
just now
88/100
SECURITY SCORE
Detected Technologies
Certificate Information
Subject
CN=massivegrid.com
Issuer
C=US, O=Let's Encrypt, CN=YR2
Valid From
July 14, 2026
Valid Until
October 12, 2026
67 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
0D:27:75:56:10:EC:DB:FE:D9:9E:E5:2A:0F:93:CF:F8:3D:AD:49:E6:9F:65:60:1D:FF:61:AC:F2:31:6B:1A:DA
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=5; includeSubDomains
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Present
geolocation=(self), payment=(self)
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Add Content-Security-Policy header to prevent XSS attacks
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