Open
Cached
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just now
88/100
SECURITY SCORE
Certificate Information
Subject
C=US, ST=Texas, L=San Antonio, O=Valero Energy Corporation, CN=valero.com
Issuer
C=US, O=DigiCert Inc, CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid From
July 11, 2025
Valid Until
July 10, 2026
234 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
09:93:97:93:48:5E:E9:D0:AC:17:F1:CB:92:97:F9:81:18:6B:42:98:7E:EB:86:7C:26:77:C7:14:7D:71:87:A7
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=300
Content-Security-Policy
Weak
frame-src; frame-ancestors; child-src; +1 more
frame-src 'self' *.valero.com *.youtube.com *.vimeo.com *.youtube-nocookie.com *.snapchat.com; frame-ancestors 'self'; child-src *.snapchat.com; report-uri /report-csp-violation
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Significantly strengthen CSP directives
- • 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
Configured
(Restricts certificate issuance)
Current Issuer
Authorized
(Matches CAA policy)
Authorized CAs
Recommendations
- • Consider using critical flag (flags=128) for stricter CAA enforcement
- • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts
- • Consider adding 'issuewild' records to control wildcard certificate issuance