Charting (Compare Mode)

Note: This topic describes the charts accessible in the compare mode. For the Charting dashboard accessible via the top menu, see Charting Dashboard.

AlertSite provides an easy-to-use charting interface to visualize your monitoring data. Response time, availability and Apdex information collected by your AlertSite monitors can be presented in a customizable chart. Charts can display multiple series of data for easy comparison. You can customize the level of granularity – for example, display raw data or hourly averages.

Chart that compares the 'Base Page Response Time' and 'Time to First Byte' metrics of two monitors

In This Topic

Creating a Chart

On the chart, the X-axis units are specified by the Group By option, such as hour of day or location. The Y-axis shows the metrics selected in the chart legend – response time components, availability or Apdex. The default metric is base page response time, that is, the response time of the page itself without the linked images, scripts, and other assets.


Chart Options

AlertSite provides the following options to customize the chart data and appearance. Some changes redraw the chart automatically, others require that you click Update to redraw the chart.

Basic Options

The following options can be changed using the toolbar above the chart.

Group By

This option lets you switch between raw data and grouped (summary) data.

Raw data means each data point represents a single monitor run. When used together with Chart Type: Scatter and Color By: Status, raw data helps you get a quick overview of all monitor runs over the selected period.

Chart with raw data

With large data sets, you may want a quick aggregated view of the data. That is what the grouping options are for. When grouping is used, the X-axis is split into intervals based on the selected unit of measure, and the data points on the chart are the average values for each interval. Data can be aggregated by various classifications, such as Hour of Day, Week, Monitor Location, Monitor Device, etc.

For example, a chart grouped by Day and Hour shows hourly averages:

Chart with data grouped by hour

Similarly, a chart grouped by location shows the average values for each location:

Chart with data grouped by location

Grouped charts have drilldown capabilities – you can click a data point or a bar to view the underlying raw data.

Series By

A series corresponds to an individual line on a line chart, or same-colored bars on a bar chart. Each series represents a distinct data set, such as the values of a specific metric of a monitor, or the metric values measured from a specific location. Series can be assigned a unique color or data point shape to make the chart easier to understand. The series legend appears to the right of the chart.

Possible series depend on other chart configuration. You can choose between:

For example, using Series By: Location, you can see the response time by location:

Series by location

Using Series By: Metric you can see the response time broken down into individual network timings:

Series by metric


The chart type – Line (default), Bar or Scatter.

Time Type, Time Period (relative) or Time Range (absolute)

The time range for the chart. You can select a relative time range, such as Last 24 Hours or This Week, or an exact date range within your data retention period (which is 3 months by default).


When using a relative time period such as Last 1 Hour, click Refresh to update the chart with the latest monitor data. The chart configuration (type, series and so on) will be preserved.

Advanced Options

The Advanced Options button displays all chart options on one screen, so you can quickly make multiple changes. A preview of the configured chart appears on the right.

To return to the chart, click Apply and close or Close. The difference is that Apply and close redraws the chart immediately, whereas Close saves the configuration but does not redraw the chart so you will need to trigger the update manually.


In addition to the options described above, additional options include the following:


Select the locations whose data you wish to include in the chart. None = all.

Status Types

Scatter charts can be filtered by the test status:


If the chart includes multi-step monitors, you can choose to only show the data for specific steps. This option is available for charts with Group By: Raw Data.

To select the steps, expand a monitor and click the desired steps in the list. The selected steps are indicated with a blue color.

Select steps

Legend Options

Line and scatter charts use a combination of color and shape to indicate different series of values. You can control how the series are displayed by using the options in the legend to the right of the chart. Available options depend on the chart configuration.

Color By

Chart colors can be based on:

Note: Some options are only available in certain chart configurations.

Shape By

Data points on line and scatter charts can have different shapes to distinguish between different series of data. Shapes can be based on:


Select one or more metrics to show on the chart. Available metrics include response time components and, for some chart types, Apdex and availability (percentage of successful tests).

Interacting With Charts

Viewing Details for a Data Point

Hover over the chart points to see a tooltip with the status at that point, including:

The exact displayed information depends on the chart type and configuration.

When using grouped charts, click a summary data point or a bar to view the raw data for the corresponding interval. Raw data appears as a scatter plot, where each data point represents a monitor run. Click Go Back to return to the main chart.

Chart drilldown

In raw scatter plots, click a data point for a tooltip with the View Run and View Detail Report links. View Run opens the run results on the Monitor Runs screen. View Detail Report displays the run data in a tabular, printable format as the Detail report.

Scatter chart tooltip with the "View Detail Report" and "View Run" links

Zooming the Chart

Drag on the area you want to zoom into. To return to the original chart, click Reset zoom.

Zooming the chart

Removing Chart Filters

Click on the list of the applied filters to remove that filter. To remove all filters, click Clear All on the right.

Removing chart filters

See Also

© 2017 SmartBear Software. All rights reserved.      Terms of Use · Privacy Policy