---
metadata:
- name: generator
content: Diplodoc Platform v5.52.0
alternate:
- https://yandex.com.tr/support2/audience/en/glossary.md
- https://yandex.com.tr/support2/audience/ru/glossary.md
- https://yandex.com.tr/support2/audience/tr/glossary.md
- href: en/glossary.md
type: text/markdown
title: Markdown version
- href: llms.txt
type: text/markdown
title: llms.txt
---
> **Documentation Index:** Fetch the complete configuration index at https://yandex.com.tr/support2/audience/en/llms.txt
# Glossary
When using Yandex Audience, you may come across the terms listed below.
Anonymous identifier (deviceid or [cookie](https://yandex.com/support/common/en/browsers-settings/browsers-cookies)) {#anonymousid}
: The unique identifier of the user's mobile app or browser. The ID becomes active when a user uses the app or browser. As segments are updated, inactive anonymous identifiers are removed from the segments, and new ones are added (for example, if a user purchased a new device or reinstalled an app), so that only anonymous identifiers that have been active in the past 30 days remain in the segments.
Segment reach {#segment-coverage}
: The number of anonymous user identifiers found in the segment. Since one user can use several devices, apps, and browsers, the number of detected users and the segment reach may differ.
Pixel reach {#pixel-coverage}
: The number of detected anonymous identifiers of users who have viewed ads containing the [pixel](https://yandex.com.tr/support2/audience/en/pixel.md).
Your own data {#personal-data}
: User data provided by the advertiser: phone numbers, emails, and mobile device IDs. The file with your own data must meet the [requirements](https://yandex.com.tr/support2/audience/en/file.md).
Matches {#matches}
: The number of entries in the file with your own data that have matching anonymous identifiers.
## Still have questions? {#all-pages}
{% note alert %}
Customer support agents can only assist you with campaigns associated with your username. You can see your current username it in the upper-right corner of the screen. The agent will get access to your data only when processing your request.
{% endnote %}
{% cut "Call" %}
You can reach us from 10:00 to 19:00 GMT +3 (Moscow time) at:
**Moscow**: [+7 495 139-91-93](tel:+74951399193).
**Russia**: [8 800 700-47-45](tel:88007004745) (toll-free inside Russia).
To access your campaigns, the agent will need a [PIN code](https://yandex.com/support/direct/troubleshooting/pin-code.html).
{% endcut %}
{% cut "Write a message" %}
{% endcut %}
[](http://audience.yandex.com/)
Go to WhatsApp
{% endcut %}