dnstwist is a tool designed to identify potentially malicious domains that adversaries might use to target your organization. It generates an extensive list of domain permutations based on a provided domain name and verifies their activity. This tool can detect typosquatting, phishing attacks, fraud, and brand impersonation.
403jump is a tool designed for penetration testers and bug bounty hunters to audit the security of web applications and identify potential vulnerabilities. It aims to bypass HTTP 403 (Forbidden) pages using various techniques.
WAF bypass is an open source tool to analyze the security of any WAF for False Positives and False Negatives using predefined and customizable payloads. Check your WAF before an attacker does.