Hi, Do you want your site to be trustworthy for your clients and the visitors? Then 100pulse offers you in free website monitoring service with 15 mins of time interval giving you the instant alerts through E-mail, RSS feeds, Twitter and so on. Also you can get the Uptime button in your site, which will show you the website status. Whenever your site experiences down time, you will be alerted by this monitoring servcie. It's totally free. When you're satisfied with this free monitoring tool, you can switch over to paid service.