Who pays for this ? How do I know you're not going to replace some of that javascript with malicious content ?
As for the security of our system, all javascript files are verified against official sources before going on the cdn. Additionally, we have many library maintainers submitting updates to their own libraries.
Beyond that the only question remaining is our personal integrity. Like any relationship with a third party, you're going to have to decide whether trusting us is an acceptable level of risk. If past performance is any indication of integrity, we have had no security incidents since we began in January 2011.
I'm wondering what is the performance increase delivered by cloudflare. I've heard many mixed opinions and I'm at the interesection where I have to decide whether I'm using them or others.
btw - kudos to Cloudflare for sponsoring this - seems like a great way to put yourself in front of developers.
http://blog.cloudflare.com/cdnjs-community-moderated-javascr... https://www.cloudflare.com/apps/cdnjs
As for Cloudflare's speed, you can see cdnjs's average ping time as measured by pingdom here: http://stats.pingdom.com/4jg86a2wqei0/362854
If I'm guessing what the names of your Pingdom checks mean correctly, they seem to show CloudFlare making your response time 10ms slower. I'm assuming that cdnjs.cloudflare.com is the site with CF in front, and cdnjs.com is without, not sure if that's correct.