There are two things that you invariably look for in a website - design and performance. The best way to guarantee this is to go for PSD to HTML conversion while developing a website.
Even the Magento Inc (earlier Varien) might have not visualized so much popularity as an eCommerce solution when it was first launched by the organization on March 31, 2008
The fact that the world wide web is teeming with tons of websites can not be denied. However, it is also equally true that not all sites meet the same fate