---
metadata:
- name: generator
content: Diplodoc Platform v5.50.6
alternate:
- https://yandex.ru/support/metrica/en/code/html-markup.md
- https://yandex.ru/support/metrica/es/code/html-markup.md
- https://yandex.ru/support/metrica/pt/code/html-markup.md
- https://yandex.ru/support/metrica/ru/code/html-markup.md
- https://yandex.ru/support/metrica/tr/code/html-markup.md
- https://yandex.ru/support/metrica/zh/code/html-markup.md
title: Setting up data collection
description: Yandex Metrica lets you use HTML markup to control some types of collected data. The JavaScript code of a Yandex Metrica tag reacts to the presence of classes of HTML elements. The rules defined for a class are triggered for the element itself and all child elements unless otherwise specified.
---
> **Documentation Index:** Fetch the complete configuration index at https://yandex.ru/support/metrica/en/llms.txt
# Setting up data collection
Yandex Metrica lets you use HTML markup to control some types of collected data. The JavaScript code of a Yandex Metrica tag reacts to the presence of classes of HTML elements (the [class](http://www.w3schools.com/tags/att_global_class.asp) attribute). The rules defined for a class are triggered for the element itself and all child elements unless otherwise specified.
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**Class**
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**Action**
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`ym-disable-clickmap`
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Disables click tracking.
Information about clicks on these elements is not collected and not displayed in the [click map](https://yandex.ru/support/metrica/en/behavior/click-map.md)
**Single element**
: ```xml
Forum
```
**Container element**
: ```xml
```
**Entire page**
: ```xml
...
```
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`ym-disable-tracklink`
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Indicates that the link is not outbound.
Clicks on these links are not shown in the [Outbound clicks](https://yandex.ru/support/metrica/en/content/external-links.md) report.
```xml
Secret
```
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`ym-disable-submit`
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Disables tracking form data submission events.
Information about submitted form data won't be shown in the Session Replay and Form analysis tools.
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`ym-disable-keys`
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Disables recording the data entered in fields. Use this class for [textarea](https://www.w3schools.com/TAGS/tag_textarea.asp) and [input](https://www.w3schools.com/TAGS/tag_input.asp) elements.
Information about filled in fields won't be shown in the [Session Replay](https://yandex.ru/support/metrica/en/webvisor/settings.md) and [Form analysis](https://yandex.ru/support/metrica/en/behavior/web-forms.md) tools.
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`ym-hide-content`
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Disables recording of user interface elements. Available only with [Session Replay](https://yandex.ru/support/metrica/en/webvisor/settings.md).
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`ym-show-content`
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Enables the recording of arbitrary site elements. Available only with Session Replay.
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`ym-record-keys`
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Enables recording the contents of fields. Available only with Session Replay. Use this class for [textarea](https://www.w3schools.com/TAGS/tag_textarea.asp) and [input](https://www.w3schools.com/TAGS/tag_input.asp) elements.
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`ym-external-link`
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Indicates that the link is outbound.
```xml
Forum
```
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|#
[Chat with us](https://yandex.ru/chat/#/user/036e6a02-3620-9cdc-4c5e-a34667a7379e?utm_source=spravka){.button}
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Useful links
- [Demo tag](https://metrika.yandex.com/r/dashboard?)
- [Add a tag](https://metrika.yandex.com/add/)
- [Free tag setup](https://yandex.com/promo/freeservice/metrica?utm_source=help_metrica_ru&utm_medium=cpc&utm_campaign=1)
- [Yandex Metrica API](https://tech.yandex.com/metrika/)
- [Suggest your idea](https://yandex.com/support/metrica/troubleshooting/idea.html)
- [Discuss in Telegram](https://t.me/yandexmetrika)
|
Online training
- [Get a Yandex Metrica certificate](https://yandex.ru/adv/expert/exam/metrika/?utm_source=metrika_help&utm_medium=web&utm_campaign=static&utm_content=useful_links)
- [Take a training course](https://yandex.ru/adv/edu/online/metrika?utm_source=metrika_help&utm_medium=web&utm_campaign=static&utm_content=useful_links)
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|#