DDoS and Heroku [duplicate]
I use Heroku as my hosting solution. So, if some bad man attacks my site with DDoS, what should I do?
Heroku is a "platform as a service," not a typical hosting solution. A denial of service attack against your site would be an attack against the entire platform. Heroku takes security seriously and presumably has sophisticated measures in place to detect and mitigate DDOS attacks.
Sit back and relax. On a platform like Heroku, your job is to develop and maintain the security of your own code, while leaving management of the platform to the provider.