HTTP Headers: commonlit.org

Security score: 60/100

🛡️ Security Headers

Header	Status
Strict-Transport-Security	✅ Present
Content-Security-Policy	❌ Missing
X-Content-Type-Options	✅ Present
X-Frame-Options	✅ Present
X-XSS-Protection	❌ Missing

📋 All Response Headers

CF-Cache-Status
CF-RAY
Cache-Control
Connection
Content-Encoding
Content-Type
Date
Server
content-security-policy
link
referrer-policy
set-cookie
strict-transport-security
vary
x-content-type-options
x-download-options
x-frame-options
x-permitted-cross-domain-policies
x-request-id
x-runtime
x-xss-protection

ℹ️ About HTTP Security Headers

Strict-Transport-Security (HSTS) forces browsers to use HTTPS. Content-Security-Policy (CSP) prevents XSS attacks by controlling which resources can load. X-Content-Type-Options stops MIME-type sniffing. X-Frame-Options blocks clickjacking by preventing iframe embedding.

commonlit.org's security score of 60/100 reflects how many of these protective headers are configured. Higher scores indicate better defense against common web attacks.

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