Open
Cached
·
just now
82/100
SECURITY SCORE
Detected Technologies
Certificate Information
Subject
C=US, ST=Minnesota, O=Mayo Foundation for Medical Education and Research, CN=mcc.mayo.edu
Issuer
C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA OV R40
Valid From
July 09, 2026
Valid Until
January 23, 2027
168 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
DC:83:90:8C:A1:59:BE:D8:5F:C2:1B:76:F0:7C:8D:B7:B0:92:0D:A6:EB:50:61:B1:13:89:17:11:6A:68:CD:23
Alternative Names
Security Configuration
TLS Protocols
TLS 1.2
Forward Secrecy
Limited
(Check cipher configuration)
Warnings
- • TLS 1.3 is not supported (recommended)
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