WhatsApp down for many; DDOS attack or victim of popularity?

A large scale DDOS on @Whatsapp is the most feasible explanation for the prolonged downtime especially after last weeks 400gbps attack

— Chisomo K. (@ChisomoK) February 22, 2014

Assuming that @WhatsApp is suffering a sustained DDOS attack. Most likely reason for it being down

— Andrew Roberts (@arob_87) February 22, 2014

#ddos attack at @WhatsApp servers? Just few days after been bought by fb? It's a matter of share price.

— Beppe Dipierro (@Beppe_DP) February 22, 2014

I'm going to guess #WhatsApp is getting #DDOS'd

— mcg:FF:FE:rof (@mcgrof) February 22, 2014

#WhatsApp down and #telegram slow. Rumours on twitter of a big DDOS attack. multiple server down.

— Léon ElsjanofWipper (@LeonEoW) February 22, 2014

Didn't see any tweet mentioning it but #WhatsApp might just be down because of ddos attacks. Just mentioning

— Block Counter (@BlockCounter) February 22, 2014

WhatsApp is down. Is a DDoS attack or Facebook interference?Meanwhile people are changing to Viber… maybe they won't come back…

— Luiz Otavio (@llima3000) February 22, 2014

this has to be a #DDOS on @whatsapp

— Rob Sandhu (@robsandhu) February 22, 2014

#Whatsapp is down. Hope #Zuckerberg kept his receipt! #DDOS?

— Linda L (@Linda_l21) February 22, 2014