There are some good counter measures. CloudFlare, the CDN that I'm using for my site http://gitignore.io http://gitignore.io helps mitigate DDoS's [1]. Github

There are some good counter measures. CloudFlare, the CDN that I'm using for my site http://gitignore.io http://gitignore.io helps mitigate DDoS's [1]. Github also took a good step by separating the source code domain github.com from the pages domain github.io [2]. I agree that tomorrow Atlassian could suffer a DDoS attack but I feel like since they are a more mature company, they have a lot more experience dealing with that type of attack. [1] - http://www.cloudflare.com/ddos http://www.cloudflare.com/ddos [2] - https://github.com/blog/1452-new-github-pages-domain-github-io https://github.com/blog/1452-new-github-pages-domain-github-...