A site-monitoring service is your best bet for detailed performance reports. Knowing exactly what is causing a page or your whole site to download slowly can save precious diagnostic time and money. In addition, many third-party monitoring services offer a great competitive advantage by showing you how your download times compare to those of an aggregate group of sites within your industry. When your site is slow to download, it may not be the server that is causing the delay. Take a careful look at the site itself.
Chances are that the problem is internal, i.e., something within the site is causing a backup.
These steps may include testing your site on different browsers, controlling file size, optimizing graphics, and monitoring third-party servers. Test your site with different browsers. Of course, you can't control which browsers people use to access the Web. The best you can do is make sure that even if they're using the oldest version of the most obscure browser, your site doesn't cause download problems. The only way to do this is through extensive testing , which should be included in your site design process.