Site is down very often these days

It seems the site is down quite often, can something be done with this?

Hi magnus, could you be more specific? This will help us pinpoint any problem that there may be.

How often is the site down for you?
Which page(s) are you trying to access when it goes down?
What error message are you seeing?
Which browser are you using?
How long is the site down for each time?

Many thanks,