---
title: "How to compare web data changes over time - Mozenda (Video)"
slug: "compare-data-changes-over-time"
description: "When having an agent that runs regularly, you can track the web data changes over time with Mozenda."
tags: ["analyze", "study", "research", "result", "report", "info", "results"]
updated: 2024-05-14T13:56:09Z
published: 2024-05-14T13:56:09Z
canonical: "help.mozenda.com/compare-data-changes-over-time"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.mozenda.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Compare data changes over time

You can track data changes over time for agents that run regularly.

### Enable Store item history

In the Web Console:

1. Select **Agents** > **All Agents**.
2. Select an agent and select ![](https://cdn.document360.io/03076343-9561-4857-8a4e-9f3bfed20ced/Images/Documentation/Agent-List.png) and ![](https://cdn.document360.io/03076343-9561-4857-8a4e-9f3bfed20ced/Images/Documentation/Settings-Agent.png) **Harvesting**.
3. Select **BEHAVIOR**.
4. Select **Store item history**.
5. Select **SAVE**.

          
          

**Note** You need at least one unique field set to track changes.

### Compare changes over time

In the Web Console:

1. Select **Agents** > **All Agents**.
2. Select an agent.
3. Verify that **Most recent completed run** and what do you want to include are selected.

![How do I compare data changes over time_Image1](https://cdn.document360.io/03076343-9561-4857-8a4e-9f3bfed20ced/Images/Documentation/How%20do%20I%20compare%20data%20changes%20over%20time_Image1.PNG)

1. Select  ![Items-Changed-Pressed](https://cdn.document360.io/03076343-9561-4857-8a4e-9f3bfed20ced/Images/Documentation/Items-Changed-Pressed.png).

![How do I compare data changes over time_Image2](https://cdn.document360.io/03076343-9561-4857-8a4e-9f3bfed20ced/Images/Documentation/How%20do%20I%20compare%20data%20changes%20over%20time_Image2.png)

1. Select **Include changed markup**.

![How do I compare data changes over time_Image3](https://cdn.document360.io/03076343-9561-4857-8a4e-9f3bfed20ced/Images/Documentation/How%20do%20I%20compare%20data%20changes%20over%20time_Image3.png)

You can select the changed fields to see individual changes within the field as well as some job time information.

![How do I compare data changes over time_Image4](https://cdn.document360.io/03076343-9561-4857-8a4e-9f3bfed20ced/Images/Documentation/How%20do%20I%20compare%20data%20changes%20over%20time_Image4.png)

![How do I compare data changes over time_Image5](https://cdn.document360.io/03076343-9561-4857-8a4e-9f3bfed20ced/Images/Documentation/How%20do%20I%20compare%20data%20changes%20over%20time_Image5.PNG)

1. Select ![Agent-List](https://cdn.document360.io/03076343-9561-4857-8a4e-9f3bfed20ced/Images/Documentation/Agent-List.png) > **Export** to export your data with the change markups.

![How do I compare data changes over time_Image6](https://cdn.document360.io/03076343-9561-4857-8a4e-9f3bfed20ced/Images/Documentation/How%20do%20I%20compare%20data%20changes%20over%20time_Image6.PNG)

**Video walkthrough**

[Embedded content](https://www.youtube.com/embed/5IX_WYfHNF0)