Open
Cached
·
just now
89/100
SECURITY SCORE
Certificate Information
Subject
CN=medlineplus.gov
Issuer
C=US, O=Amazon, CN=Amazon RSA 2048 M01
Valid From
January 02, 2026
Valid Until
January 30, 2027
382 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
25:F5:5E:60:EE:58:C1:79:40:77:1C:4F:B0:48:8C:AC:6D:B5:EA:2C:49:07:C7:BF:09:90:0A:B5:C6:DB:63:0A
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
Weak
max-age= 63072000; includeSubdomains; preload
Content-Security-Policy
Basic
default-src; connect-src; font-src; +10 more
default-src 'none'; connect-src 'self' https://medlineplus.gov www.google-analytics.com stats.g.doubleclick.net *.crazyegg.com *.qualtrics.com; font-src 'self' data: https://medlineplus.gov ; media-src 'self' https://medlineplus.gov ; worker-src 'self' blob: https://medlineplus.gov ; frame-src https://medlineplus.gov www.googletagmanager.com https://platform.twitter.com:443 https://syndication.twitter.com:443; frame-ancestors 'self' https://guides.nnlm.gov https://medlineplus.gov; img-src 'self' data: https://medlineplus.gov https://accreditnet.urac.org https://www.urac.org https://content.govdelivery.com https://ssl.adam.com/ www.google-analytics.com www.googletagmanager.com gtrk.s3.amazonaws.com stats.g.doubleclick.net https://syndication.twitter.com:443 https://platform.twitter.com:443 *.twimg.com *.qualtrics.com data:; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://medlineplus.gov https://content.govdelivery.com https://platform.twitter.com:443 syndication.twitter.com https://dap.digitalgov.gov *.crazyegg.com www.google-analytics.com www.googletagmanager.com *.cloudfront.net *.nlm.nih.gov ajax.googleapis.com cdn.syndication.twimg.com *.qualtrics.com; style-src 'self' 'unsafe-inline' https://medlineplus.gov https://content.govdelivery.com https://platform.twitter.com:443; object-src 'none'; upgrade-insecure-requests; report-uri https://nlmoccs.report-uri.com/r/d/csp/reportOnly;
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Missing
Not configured
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Improve CSP by adding more specific directives and removing 'unsafe-inline'
- • 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