I provide comprehensive web penetration testing for websites, web applications, and APIs to identify and validate security weaknesses before attackers can exploit them. Using a mix of automated scanning and manual verification, I test for OWASP Top 10 issues (XSS, SQL injection, CSRF, Broken Authentication/Authorization, IDOR, XXE), API security flaws, SSRF, insecure file upload, session management issues, and misconfigurations. Deliverables include reproducible proof-of-concept (safe) exploits, CVSS-based risk ratings, prioritized remediation guidance, and an executive summary suitable for non-technical stakeholders.