Anyone who runs a website knows about the importance of tracking outages and catching them fast. There are plenty of website uptime monitoring services around that send you a text message or e-mail when your site goes down. SelkeyMoonbeam has shared an interesting project on Instructables, showing you how to build a website down alarm. It will ping your website every few seconds for trouble and alerts you.
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When the light is off, your site is online. When it turns on and stays on, the website being monitored is down. There is also a special lighting pattern when there is a system error. You will need a Tessel, a relay module, and an alarm light to get stated.
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