Caused my browser to completely freeze shortly after loading the page and seeing what looked like some interaction heatmaps appear.

I'm using Firefox 31.0 x64 on Debian 7 (Wheezy) with kernel 3.15.0-rc4. All plugins are click to play on my browser. Intel i7-4770K. 32GB RAM. NVidia GTX 770 with 337.19 proprietary drivers.

I had to press back and wait for a minute until my browser processed the event and got me away from the page.

Is there a public demo available? This sounds like an interesting tool, but I do not want to signup and add an unknown snippet into production just to get a better understanding of this.

I suspect the actual site is supposed to be a demo in itself, but after 20 seconds my CPU spikes to 100% and browser becomes almost unresponsive (Chrome on Macbook Air).

Edit: In case this helps, I ran a JS CPU profiler on the page and the spike looks to be cause by the sockets http://i.imgur.com/oYr3mYG.png

Is there a sample I can view without registering? A video perhaps? I often use http://mouseflow.com for my clients in the first week after launch (note: mouseflow has major issues for responsive designs).

Show HN: A tool that let's you freeze your browser in realtime

Firefox on Ubuntu: 100% CPU usage and need to kill the browser.

Does anybody know of studies correlating eye movement with mouse position? All these tools sort of pretend to be revealing eye movement but I find that I personally keep the mouse cursor in one position, scroll and only hover a link if I have already decided to click it..

It's obviously still valuable data, but just not quite the mind reading super tool that it pretends to be.

Caused my Firefox to hang until I somehow managed to close your site's tab. Please disable that demo, it's ridiculous. My hardware is not exactly cutting edge, but I can fire up much more demanding demos at good framerates and with no crashes.

We've made some changes so we shouldn't be crashing anyone's browsers now.

Borked my browser. :( I imagine it's keeping track of too many things at too many short intervals? Nice idea though, I would like to use this but if my users have this problem I would be insta-gibbed.

Sounds like a great idea. However, I would expect an example/demo to see what the visualization would look like before I give you my email address.

Small title correction: "a tool that lets you"

let's == let us (contracted form)

Great tool. We're using http://www.inspectlet.com/ for this at the moment, and it's fantastic. You might want to catch up with those guys; they've been running in this space for at least 2 years.

The "Google analytics from Yandex" does it pretty good as well. https://metrika.yandex.com/

I tried this with https and it uses http to load the script contents, which causes some warnings and didn't work for me.

Worked fine on http, though.

Pretty fascinating. You might find out that people draw odd things with their mouse while reading your website.

Crashed latest firefox on OSX Mavericks.

Just put this on my site and doesn't seem to be working. What am I supposed to see?

Thanks for the feedback guys. We're looking into the issues now.

Here's something that could work... in the future.

Is there access to historical data or only live data?

This is a great demo