> ## Content Index
> Fetch the complete content index at: https://www.adlingo.org/llms.txt
> Use this file to discover other available public pages before exploring further.

# First-Party Data
- URL: https://www.adlingo.org/glossary/first-party-data/
- Published: 2025-01-15T11:02:00.000Z
- Updated: 2025-01-15T11:02:00.000Z
- Description: Data that a company collects directly from its customers or audience through owned channels and platforms.
- Author: Travis Lusk
- Tags: Programmatic, #glossary, #Import 2026-10-27 17:05

Data you collected directly from people who interacted with your brand. Website visits, purchase history, email engagement, CRM records. You own it. You control it. And with third-party cookies blocked in Safari and Firefox and limited by consent rules everywhere else, it's the most durable signal you have for targeting and measurement. The gap most advertisers are discovering: they've been collecting data for years but didn't build the infrastructure to actually activate it. Collection and activation are different problems.