Ever worried that people will think you look older than your actual age? Now you can live in your worst nightmare by going on to how-old.net and invite new technology to judge you.

Developed by Microsoft, the website saw an upload of over 210,000 photos within hours of launch. And it seems people are having fun.

在魔漫相机、脸萌、足记之后，当下走红朋友圈的是一个名为“how-old.net”的网站，只要你上传一张照片，系统就会猜出你的年龄和性别。

How does it work? Can it really tell your age with certain accuracy?