Add special meaning to famous apps.

[FedericoPonzi]

I've seen some people trying to ping "whatsapp" to check if it was down. Obivously this doesn't lead to anything on isitdown.site right now, but it would be cool to have a way to allow people to run such queries.
One idea would be to either ping some whatsapp servers, or just parsing the whatsapp server status page.
This could be done for the major websites and apps.