---
title: What is Segment
description: A group of keywords and products to use in tactic or analyse in traffic analysis
---
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# What is Segment
## A group of keywords and products to use in tactic or analyse in traffic analysis
A segment is a list of keywords and ASINs to use in a [tactic](https://help.m19.com/advanced-strategy-set-up-how-to-use-tactics) or to analyse in [traffic analysis](https://help.m19.com/how-traffic-analysis-works).
You can create a segment in 2 ways:
- When you create a [tactic](https://help.m19.com/advanced-strategy-set-up-how-to-use-tactics): A tactic is a segment to which you add an intensity/aggressiveness for a given strategy. You will be able to analyse the statistics of the tactic on the page [Overview](https://help.m19.com/how-to-use-the-overview).
- In [traffic analysis](https://help.m19.com/how-traffic-analysis-works): Segments let you compare performance per product and keywords
In both cases, when you edit a segment, it is updated everywhere. It means you can create a segment in traffic analysis and add it to a tactic later.
Do not confuse segment and [tactic](https://help.m19.com/advanced-strategy-set-up-how-to-use-tactics) analysis! In [traffic analysis](https://help.m19.com/how-traffic-analysis-works), you compare the performance of a segment across all strategies whereas in the [overview](https://help.m19.com/how-to-use-the-overview) you compare the performance of the tactic inside a [strategy](https://help.m19.com/standard-strategy-set-up).
[Here are a few recommendations for your segments](https://help.m19.com/how-to-split-my-traffic-properly)
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