Burp Suite's Repeater is used for what purpose?

• A. Automated traffic capture
• B. Passive analysis of responses
• C. Redirects and rewrites
• D. Manual testing by modifying and resending individual HTTP requests to observe responses

Answer: (D)

Manual testing of a single HTTP request: Burp Suite’s Repeater is used to take a captured request, edit it (method, URL, headers, cookies, body), and resend it to observe how the server responds. This lets you iteratively tweak inputs, see how changes affect behavior, and test for input validation, error messages, or potential vulnerabilities on a request-by-request basis. It’s different from automated traffic capture (which records traffic via the proxy) and from passive analysis (which inspects responses without altering requests). Repeater focuses on hands-on experimentation with individual requests, making it ideal for precise, controlled testing of how the server handles specific inputs.