I came across this chrome extension yesterday that might be helpful. It just records your browser actions and automatically runs them when you start a simulation. I think the mouse clicks are based on coordinates so it might not be helpful if the sites you're testing change (layout-wise) frequently, but if you have a bunch of sites that aren't changing too often it might be worth a look.

Also I think they have some kind on built in captcha filling tool, but I think that's a premium feature.

I might suggest sauce labs' automated testing https://saucelabs.com/small-team#automated-testing-platform

Or setting up something yourself with Selenium and a continuos integration provider (such as Circle CI) as Baylor suggested.

I've written several automation frameworks with Selenium which is a browser automation tool. It wouldn't be difficult to create a daily task for this.

Damn, this is a really good idea and I don't know why I hadn't thought of building something simple to do this on some of the older static sites my company runs. I'm constantly having issues with our older stuff that I wasn't around for, so this is a great idea. I've basically been relying on our customer facing team to let me know when things are broken, but they rarely notice until it's already at a catastrophic level (like it's probably been down for over a week by they time they notice... if they even do). I feel like this could be done fairly simply in PHP with a simple interface built in bootstrap or something and housed on a central server.

I am not sure of a tool but this is an exact issue I have come across recently! I was thinking about build a script that runs daily that goes into each form, autofills the field with test data and tests though the issue I have is that I am using google recaptcha specifically to stop someone from making a script to fill these forms..

Interesting problem, maybe some kind of addition to the tool would be needed to self test its self.