I want to assess the security of 'example.com' by scanning its HTTP response headers. After the scan, please provide the overall security grade, list all the security headers that are identified as 'missing', and for each missing header, briefly explain what it does and what the recommended value or action is to implement it.
Navigate to 'https://securityheaders.com'. Enter 'example.com' into the domain input field (ID 33, name 'q'). Click the 'submit' button (ID 34). Once the scan results page loads, identify the overall grade assigned to 'example.com'. Locate the 'Missing Headers' section. For each header listed under 'Missing Headers', extract its name, its purpose, and any recommended value or action for implementation. Synthesize the overall grade, the list of missing headers with their explanations and recommendations, into a concise answer.
The agent successfully navigates to 'https://securityheaders.com'. The agent correctly inputs 'example.com' into the scan field and initiates the scan. The agent identifies and states the overall grade for 'example.com' as 'F'. The agent lists all missing security headers: 'Content-Security-Policy', 'X-Frame-Options', 'X-Content-Type-Options', 'Referrer-Policy', and 'Permissions-Policy'. For 'Content-Security-Policy', the agent states it's an effective measure to protect against XSS attacks by whitelisting content sources. For 'X-Frame-Options', the agent states it tells the browser whether to allow framing and recommends 'X-Frame-Options: SAMEORIGIN' to defend against clickjacking. For 'X-Content-Type-Options', the agent states it stops the browser from MIME-sniffing content types and recommends 'X-Content-Type-Options: nosniff'. For 'Referrer-Policy', the agent states it allows a site to control how much information the browser includes with navigations away from a document. For 'Permissions-Policy', the agent states it allows a site to control which features and APIs can be used in the browser.