The kind of service no webmaster who calls himself like that does without, Erlywarn can take care of monitoring sites and reporting all kind of irregularities. That includes not only outright downtime and the malfunction of servers, but also strange user behavior. For example, if you are a webmaster and people have stopped signing up for your site all of a sudden, then Erlywarn will notice that and notify you. In all likelihood, such a thing is happening because your registration form has become broken. Erlywarn will realize as much, and point you in the right direction in no time at all.
Erlywarn can monitor as much sites as the user needs it to keep a close watch on, and it can deliver alerts both via SMS and email.
As a service, Erlywarn comes in three different versions (“Pay As You Go”, “Business” and “Premium”). All three plans come with unlimited alerts, and uptime report pages. The one and only difference between plans is the number of sites that each can monitor, with the most expensive plan letting you monitor up to 300 sites at once.
Some of Erlywarn’s competitors include tagBeep, Uptime Inspector and Dead Simple Monitor.
Erlywarn.com In Their Own Words
Get instant notification when your website is responding unusually. Minimize your downtime by acting on early warning signs such as sudden changes in response behavior. Add your URL to get started.
Some Questions About Erlywarn.com
What if you need to have more than 300 sites monitored? Can something be arranged? 
