Why massive traffic to social media do not cause DOS/DDOS attacks?

[webiondev]

Why massive traffic to social media do not cause DOS/DDOS attacks? Billions of people accessing the servers of social media then why still it is not going down as DOS or DDOS attack would do by overhwelming network bandwidth and resources?

[Leo Laohoo]

1. Because they have massive WAN links;
2. Because they have a dedicated team to make sure their services are up all the time

[Giuseppe Larosa]

Hello @webiondev ,

just to add the social media have many datacenters and use the anycast concept:

in different parts of the world when you try to access the social media web site you get a different DNS resolution and you are actually redirected to the nearest datacenter.

This is why they are able to support so many users.

Hope to help

Giuseppe

[marce1000]

 - A Dos/DDOS attack is network traffic , outside  the scope of the designed-apps and with malicious intend.     Normal facebook/twitter (e,g.)users do not belong to that category (by definition). They could in theory  slow down the respective apps, but as already explained due to clever scaling techniques that usually doesn't happen.

 M.