title: Realtime alerts for page speed
body: <p>I'm looking for a tool that will send me an alert for page load time.</p>
  
  <p>Think of a downtime alert, eg: Pingdom, but one that sends alerts once a page load time increases above a certain threshold. Eg: Alert that X page has taken greater than 7 seconds consistently for 30 minutes.</p>
  
  <p>I know of a lot of tools that give you historical records and page speed metrics after the fact, or give you Apdex scores, but nothing that alerts around speed thresholds. </p>
  
  <p>Does anyone know of such a tool?</p>