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
I would not want that on my live sites, heh.
EDIT: I would suspect, the site does not last long from the HN hug.
https://mouseflow.zendesk.com/entries/28120533-Tracking-resp...
It's obviously still valuable data, but just not quite the mind reading super tool that it pretends to be.
http://jeffhuang.com/Final_GazeCursor_CHI12.pdf
"But claiming that the cursor approximates the gaze is misguided - as we have shown, this is often not the case depending on time and behavior"
"Therefore, we conclude that whether the subject tracks their gaze closely with their cursor is more likely to stem from personal habits rather than age or gender."
http://stc-access.org/wp-content/uploads/cooke_mouse_eye_tra...
TLDR: 'eye movement matched mouse movement 69% of the time'
There's also a paper in here starting page 33 of the PDF http://research.microsoft.com/en-us/um/people/ryenw/proceedi...
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.
From Chrome: Uncaught SecurityError: Blocked a frame with origin "http://seeyourvisitors.appspot.com" from accessing a frame with origin "http://www.startuptabs.com". Protocols, domains, and ports must match.
If I click a spot several times (to make dark red) then the other heat spots don't even show up. This is probably as expected but might make some page view data useless.
let's == let us (contracted form)
Worked fine on http, though.