Ponies invade UsabilityTools.com

Source

There's that website UsabilityTools which offers services to... "analyze" the behavior of visitors on a website. Yes, we see everything you do. But we won't tell about your privacy, don't worry... We just silently giggle.
Anyway, today it has been invaded by some colorful ponies. However they got in there...
Look at them!

Thanks to Sebastian Krzyszkowiak for letting us know.