All of those tools are targeted at ensuring that bots can crawl a site correctly (usually for SEO purposes). Bughunt aims to find bugs a real user would run in

All of those tools are targeted at ensuring that bots can crawl a site correctly (usually for SEO purposes). Bughunt aims to find bugs a real user would run into. It does this by using an actual web browser to crawl (not just HTTP requests). This means it supports Single Page Apps, JavaScript and anything else (including external scripts & images) that the page requires to render correctly. Bughunt can replace a large chunk of point and click QA regression testing, without ever having to write automated scripts.