Such services keep you informed about your website performance, content and availability. Unfortunately local software is unfit for purposes of website monitoring. How can you determine fails of external channel? Can you be sure that website monitoring software is started and works correctly? At last, how can you be sure that your site is available from the outside? External website monitoring is suitable resolution for those who don’t want to lose customers because of fails which are integral part of any project. Monitoring allows you to be sure that your website works correctly and its security is not under the threat. When something happens website monitoring provider informs you by SMS, call and email with details of the fail and possible reasons of it. So, you can take actions immediately and reduce website fail.