Google now thinks Speed of page could be considered as one of the Ranking factor. Well it has not yet implemented but soon it may go for it.
How can convert2xhtml can help you in this?
We can optimize your code for faster downloading. We always suggest to get your website XHTML coded. Yet today we found lots of websites using old tech of HTML. We do convert your website in HTML to XHTML. That will help you to be with modern tech of XHTML.
Google’s Matt Cutts told that speed may soon be a ranking factor.
Historically, we haven’t had to use it in our search rankings, but a lot of people within Google think that the web should be fast,” says Cutts. “It should be a good experience, and so it’s sort of fair to say that if you’re a fast site, maybe you should get a little bit of a bonus. If you really have an awfully slow site, then maybe users don’t want that as much.
If you have not yet got your design converted to HTML or XHTML and your website is still in design phase make sure you keep speed in mind. And get your website design coded to XHTML with optimized download speed from convert2xhtml.com 
Google has generally been pretty good at providing webmasters with tools they can use to help optimize their sites and potentially boost rankings and conversions. Google recently announced a Site Speed site, which provides webmasters with even more resources specifically aimed at speeding up their pages. Some of these, such as Page Speed and Closure tools come from Google itself. But there are a number of tools Google points you to from other developers as well.
