"Real browser monitoring is a must." Lenny Rachitsky, TransparentUptime.com

Real Browser Monitoring - Server Uptime and Performance Reports

Gathering monitoring data is useless unless that data can be easily interpreted.
With AlertFox there are several ways you can stay informed of your site's status.

Is everything allright? - The Home/Dashboard VIew

Right when you log in, you can see how many of your sensors are green or in an error state.
Global status: how many sensors are fine, how many show errors?
The dashboard shows an aggregated status of all sensor types.

All Sensors At a Glance - The Tactical Overview

See the status of all your sensors covering the last 24 hours
Tactical overview: All sensors' status for the last 24 hours
All sensors' status for the last 24 hours.

Green - Works fine
Orange - Performance issue
Dark Red - Error
White - No measurement taken, no result received
Black bars - Amount of failures within a 1h interval

A click on any of the colored fields takes you to the corresponding section of the detailed error log for this sensor.

Interactive Annotated Graphs - The Graphics VIew

View a single sensor's history in an interactive graph, including annotated error information (and error screenshots).
Transaction sensor's interactive and annotated graph. Screenshot of real browser instance at time of error
A transaction sensor's graph. Supports zooming, panning and contains detailed annotations on all errors. If possible, there are also links to screenshots that were taken on the error. Since AlertFox tests run in actual browser instances, they are capable of taking screenshots of error conditions - just like a real user would see them! This aids tremendously in determining the cause. In this sample, the error message is "Max macro runtime reached." Together with the browser's status message "Transferring data from...", you know that  it was the site's speed that caused the error and not something else like a being loaded or a broken link.

Detailed Info on Each Single Measurement - The Log View

The log contains the history of a sensor as a table. Everything is there: results, error reports and screenshot links.
The Log View - Detailed Info on Each Single Measurement