Like everything in the computer world, websites need to be upgraded regularly. Plus they need to have a face lift now and then too.
I website that is run using php, or is database driven will last about 4-5 years. As technology gets more complex and codes become out of date. So if you have a website that is successful, you should budget for a rebuild every 4-5 maybe 6 years.
Html website will last a lot longer, but then they can't do a lot of things that database websites can, html websites are really something for personal websites, and shouldn't be considered when looking at building a professional websites. Professional websites need to look professional, and changing that have to be made to an html website have to be made on every page, whereas on a database website, one change say in the menu, will change the menu's on the whole site. Of course, there are many other things that make database driven websites better than an html website, but this post is about how often you should look at rebuilding your site.
I would also suggest you give your website a new updated look every couple of years, this does not cost much, and can make the world of difference to a website. There's nothing worse than an old fashioned looking website.
Regards Lynny
Help1@Seobycanz.com
