Bugheist is described as 'allows anyone to submit an issue from any website. For example if you saw a broken button on Amazon.com you can report the issue on Bugheist and then get a point! The more bugs you find the more points you get'. There are five alternatives to Bugheist, not only websites but also apps for. The best alternative is HackerOne. It's not free, so if you're looking for a free alternative, you could try Bugcrowd or Open Bug Bounty. Other great sites and apps similar to Bugheist are Intigriti (Paid) and SafeHats Bug Bounty (Paid).
Managed bug bounty and vulnerability disclosure programs provide companies with the ability to level the playing field, strengthening the security of products as well as cultivating a mutually rewarding relationship with the security researcher community.
Open Bug Bounty is a non-profit project designed to connect security researchers and website owners in a transparent, respectful and mutually valuable manner. The purpose is to make the World Wide Web a safer place for everyone’s benefit.