Site moving very slowly

Can someone please help? All of a sudden my site is moving extremely slowly. Please help.

http://www.regentparkrehab.net

thanks

You can install this admin module which will report the load average for most linux server set-ups (Not Localhost WAMP Stacks). This is for Average Load and Uptime J1.7 or MiniSystem for J1.5. They should allow you to see if your server has a low loading or not... if it's high then your site will be slow.

You can also install Yslow in firebug which will give you useful information about page load optimisation.

If your site is normally pretty quick the server or connection speeds are possible causes. If it's constant then it's more likely the page content, image size, image resizing in html, no cache or no gzip etc.

If it's intermittent and or has just suddenly started check the server loading first.

What is considered low loading and what is considered high loading? Mine is 15.73.

Well there's your answer! That's really high. Anything above 1 and you will start to notice a tail off in speed.

So the issue is with my hosting company and not my website? How can i get them to improve my load?

If this is the first time you have noticed a slowdown then it may just be temporary. You should put in a support ticket and give them the time, date and load values. One snap shot isn't a fair representation you would really need a large pool of data. On a shared hosting environment it may peek like that from time to time but it should recover quickly if you have a good host.

It could be caused by someone abusing/hogging the server or running a poor script, in which case the support people will kill the script or warn the abuser.