You may have developed your website using an expensive "what you see is what you get" editor but there's no guarantee that site visitors "will get the website as you see it".
You will need to extensively test the website to ensure that visitors have a comfortable stay and don't leave your site in a jiffy. And here are some useful tools to help you completely check your website:
Browsershots is an online service that automatically captures full page screenshot images of your website in various browsers across all different OS platforms. You also have the option to preview the website design in browsers with or without Flash, Java and JavaScript.
IE NetRenderer is another service that's much faster than Browsershots but it can check the rendering only for different versions of Internet Explorer. Mac oriented websites can try BrowsrCamp which is like Browsershots but for the Mac OS browsers only.
To see how your website appears on the small screens of mobile phones like the BlackBerry or Windows Mobile, check out BrowserCam. Another good option is the Opera Simulator that lets you experience a mobile version of Opera from the desktop.
Related: Use Opera Simulator to Unblock Restricted Websites
Some people are still using slow dial-up connections and their population in not insignificant especially in the developing world. You therefore need to make sure that the average loading time of your HTML web pages, along with all the Javascript Ads, Images, CSS, Flash animations, etc., is within reasonable limits.
