I've built the same thing using NodeJS a couple of weeks ago, with phantomjs support (javascript execution), mandrill (emailing) & and some other nice options:

I've built the same thing using NodeJS a couple of weeks ago, with phantomjs support (javascript execution), mandrill (emailing) & and some other nice options: https://github.com/mgcrea/node-web-watcher https://github.com/mgcrea/node-web-watcher