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HTTP Headers: addons.mozilla.org

Security score: 0/100

🛡ī¸ Security Headers
HeaderStatus
Strict-Transport-Security❌ Missing
Content-Security-Policy❌ Missing
X-Content-Type-Options❌ Missing
X-Frame-Options❌ Missing
X-XSS-Protection❌ Missing
📋 All Response Headers
Connection
Content-Length
x-content-type-options
content-security-policy
x-xss-protection
cache-control
etag
x-frame-options
content-encoding
strict-transport-security
content-type
amo-request-id
via
Accept-Ranges
Date
Age
X-Served-By
X-Cache
X-Cache-Hits
X-Timer
Vary
ℹī¸ 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.

addons.mozilla.org's security score of 0/100 reflects how many of these protective headers are configured. Higher scores indicate better defense against common web attacks.

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