# 3 Triggers top 100

#### Overview

In *Reports → Triggers top 100* you can see the triggers that have
changed their state most often within the period of evaluation, sorted
by the number of status changes.

![](../../../../../assets/en/manual/web_interface/triggers_top.png){width="600"}

Both host and trigger column entries are links that offer some useful
options:

-   for host - links to user-defined scripts, latest data, inventory,
    graphs and screens for the host
-   for trigger - links to latest events, the trigger configuration form
    and a simple graph

**Using filter**

You may use the filter to display triggers by host group, host or
trigger severity. Specifying a parent host group implicitly selects all
nested host groups.

The filter is located below the *100 busiest triggers* bar. It can be
opened and collapsed by clicking on the *Filter* tab on the left.

**Time period selector**

The [time period
selector](/manual/config/visualisation/graphs/simple#time_period_selector)
allows to select often required periods with one mouse click. The time
period selector can be opened by clicking on the time period tab next to
the filter.