---
title: "Web Segments: First-Party Segments"
slug: "web-segments-first-party-segments"
description: "Covers how to create First-Party Segments in Insider One using Local Storage or cookie values and custom CSV datasets for CRM and cross-channel targeting."
tags: ["first party segment", "fps", "web segments"]
updated: 2026-01-20T14:13:52Z
published: 2026-01-20T14:13:52Z
canonical: "academy.insiderone.com/web-segments-first-party-segments"
---

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

# Web Segments: First-Party Segments

First-Party Segments allow you to target users based on custom dataset values stored in [Local Storage](/v1/docs/insider-cookies-local-storage-session-storage) or First-Party Cookies on your website.

This is useful when your cookies store information about users or user segments, such as frequent buyers of a specific product or users who shared their email address during sign-up.

![](https://cdn.document360.io/c6df4583-da94-4cb2-bb8a-be0cbdd11109/Images/Documentation/image-1718178405836.png)

## How the FPS segment works

- Target a specific dataset to check if the cookie matches any value in your dataset.
- Upload a CSV file containing the dataset values to match
- **Example**: *Cookie Value in Custom Dataset - in - premium_user - user_list*

#### CRM Data Targeting

Match users from your **CRM database**, so they see relevant campaigns.

#### Offline to Online Targeting

Target **offline store customers** on your website if they also have user accounts.

#### Mobile App & CRM Segmentation

Segment **mobile app users** based on **CRM data** for consistent targeting across channels.

## Related

- [Data Ingestion](/data-ingestion.md)