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SECURITY SCORE
Certificate Information
Subject
CN=heys.dev
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
December 30, 2025
Valid Until
March 30, 2026
79 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
2F:FD:61:9F:55:E5:F8:DA:0C:06:A1:F8:52:59:ED:E1:A7:05:65:2F:5E:44:6A:0B:4A:0A:B1:AC:63:2A:29:3B
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=31556926
Content-Security-Policy
Missing
Not configured
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
- • Add Content-Security-Policy header to prevent XSS attacks
- • 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
Subject Alternative Names
100 domains
heys.dev
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lingo.dandelion-impact.org
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enotte2.es
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teamlinkapp.net
tomlambert.co.uk
urganchimi.uz
www.uselessdog.dev
validatefirst.ai
www.validatefirst.ai
veralign.app
sys.vidout.net
waxicofabrics.com
noodplan-ph.weagouda.nl
zilla.tech
coast.zone.id
www.coast.zone.id
zos.zyntrix.solutions
Other domains in certificate