Standards Compliant Design
Speeds Development
Web standards force developers to check for errors. Running pages through a validator shows exactly where the errors are. This reduces the time developers spend on quality assurance and gives your site incredible consistency between browsers.
Simplifies Maintenance
The clean separation of content and design makes it much easier to edit the website at a later time. Upgrades that would have taken days if not weeks to do can now be done within hours if not minutes. Rather than having to update hundreds of pages on a website, a single CSS file is all that needs to be changed.
Accessibility
Using clean XHTML code your website becomes open to all browsers. This means non-traditional clients like mobile phones, PDAs, voice interfaces and screen readers are able to view/read and interact with your website.
Reduced Bandwidth
Without using standards compliant code your homepage could be anywhere from 20 kb to 40 kb in size. That adds up fast when it comes to bandwidth usage. By simplifying the code and moving all presentational markup into one file you can cut your bandwidth in half if not better. If you have a large commercial site that receives heavy traffic, this can save you thousands of dollars a month.
Improved User Experience
It’s no secret that a faster loading site will nearly always translate to a better overall user experience. A hotel phone line plugged into a business traveler’s laptop may be the only tenuous link you’ve got to a new customer. Standards compliant coding and design gives the user an advantage and lets him/her accomplish their goals at your site. This could mean money for your business. Would you really want to lose that chance?