The market is flooded with WYSIWYG HTML editors and web authoring software and whilst this makes the job of producing web sites a lot easier, it also has a negative side-effect of producing irrelevant, unnecessary, and often badly formatted markup. Advansys optimise all code by hand and in many cases re-write it. This not only makes the code clean but also makes it more lightweight so there's less data to download. As a result the performance of your web site will improve by allowing web browsers to load the information quicker. Clean, optimised code is more visible to search engines and will have greater relevance.