Code Optimisation for Search Engines
The code used to build your web site is vitally important. Not only does it determine how your page is loaded and viewed in different web browsers, it can also have a dramatic effect on your search engine results or SERPs.
There are several important code areas that benefit search engines that aren't even displayed. It is in fact possible that two identical sites rank completely differently. One site might have decent indexable code that search engines can follow and understand, whereas the other site might appear broken to a search engine. Search engine spiders or robots are like old inferior version 2 web browsers.
To give your site the best chance, ensure that your code is fully optimised before undertaking any other SEO.