Open
Cached
·
just now
80/100
SECURITY SCORE
Certificate Information
Subject
CN=sms-check.co
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
October 06, 2025
Valid Until
January 04, 2026
43 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
9A:8E:41:5B:17:3A:93:A0:62:47:6C:AA:B6:6F:0A:79:BC:A1:3E:FD:C2:29:0F:D9:EB:9E:7F:40:3D:CA:52:DD
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
Missing
Not configured
Content-Security-Policy
Basic
script-src; object-src; base-uri; +3 more
script-src 'report-sample' 'nonce-TgTai3jkYN7c2htbFuoL4g' 'unsafe-inline';object-src 'none';base-uri 'self';report-uri /_/DurableDeepLinkUi/cspreport;worker-src 'self',require-trusted-types-for 'script';report-uri /_/DurableDeepLinkUi/cspreport
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Present
ch-ua-arch=*, ch-ua-bitness=*, ch-ua-full-version=*, ch-ua-full-version-list=*, ch-ua-model=*, ch-ua-wow64=*, ch-ua-form-factors=*, ch-ua-platform=*, ch-ua-platform-version=*
Recommendations
- • Add Strict-Transport-Security header with max-age of at least 1 year
- • 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)
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
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Other domains in certificate