Loading time and site speed

few days ago I noice that site loading speed is very slow, site built PHP cake

Yallabook.com

iam not developer and the developer who built it not available any more…

need your help what I should do now… I’m losing traffic

If you’re on a shared server, it’s entirely possible that the problem is nothing whatsoever to do with your site, but that some other site on the same server is getting hammered and slowing everyone down. Or maybe it’s your site that’s getting hammered? Do you have access to logs to see if your usage has gone way up? If nothing in the site itself changed, then it’s almost certainly a traffic issue somewhere.