If you are like most online businesses, you have put a lot of money and effort into making sure your site looks great, is hosted with a reliable hosting provider, is optimized for the search engines, and is secure from malicious hackers and attacks. You may even be paying for the outsourcing of IT management and maintenance. Unfortunately, if you think this is enough, you are sorely mistaken. If you really want to be able to see your site the way customers do, you can't do it from inside your network. You need a third-party website monitoring service put into place to do the work for you.