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Why people like Uptime Robot
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Uptime Robot is all about helping you to keep your websites up. It monitors your websites every 5 minutes and alerts you if your sites are down.

Uptime Robot's Features
  • http(s): that's perfect for website monitoring. The service regularly sends requests (which are the same as if a visitor is browsing your website) to the URL and decides if it is up or down depending on the HTTP statuses returned from the website (200-success, 404-not found, etc.)
  • ping: this is good for monitoring a server. Ping (ICMP) requests are sent and up/down status is decided according to the "if responses are received or not". Ping is not a good fit for monitoring websites as a website (its IP) can respond to ping requests while it is down (which means that the site is down but the server hosting the site is up)
  • keyword: checks if a keyword exists or not exists in a web page
  • port: good for monitoring services like smtp, dns, pop as all these services run from a specific port and Uptime Robot decides their statuses if they respond to the requests or not.

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