---
metadata:
  - name: generator
    content: Diplodoc Platform v5.54.5
alternate:
  - https://yandex.com/support/metrica/en/webvisor/qanda.md
  - https://yandex.com/support/metrica/es/webvisor/qanda.md
  - https://yandex.com/support/metrica/pt/webvisor/qanda.md
  - https://yandex.com/support/metrica/ru/webvisor/qanda.md
  - https://yandex.com/support/metrica/tr/webvisor/qanda.md
  - https://yandex.com/support/metrica/zh/webvisor/qanda.md
  - href: en/webvisor/qanda.md
    type: text/markdown
    title: Markdown version
  - href: ../llms.txt
    type: text/markdown
    title: llms.txt
title: FAQ for Session Replay
description: FAQ for Session Replay.
---
> **Documentation Index:** Fetch the complete configuration index at https://yandex.com/support/metrica/en/llms.txt


# FAQ for Session Replay

{% cut "The “WebVisor” report shows fewer sessions than other reports do" %} {#number-of-records}

Session Replay can record a [set number of sessions each day](https://yandex.com/support/metrica/en/webvisor/requirements.md#4). The system provides a representative sample by recording a spread of sessions throughout the day.

Sessions that are too short may not be recorded. For example, this can happen if the user closes the tab before Session Replay has a chance to transmit the session recording.

Some visits may not be counted due to network issues, such as a slow connection, or as a result of a program preventing Session Replay from working.


{% endcut %}

{% cut "Why are some sessions empty?" %} {#no-actions}


A certain percentage of visits to any site may not display any activity. This happens either because nothing actually happened on the page during the session, or because the actions could not be recorded.

Reasons for nothing happening on the page:

- A web crawler visited your site.
- Your page was loaded in a tab when a browser restored a user’s previous session.

Reasons for actions not being recorded:

- The code snippet does not support Session Replay. Enable **Session Replay** in the [tag settings](https://yandex.com/support/metrica/en/webvisor/settings.md) and update the code snippet on your website pages.
- The user left your page without waiting for it to load.
- The user was using a browser that does not support recording.
- The user used a non-standard device to view the page.
- The user has a slow connection, so the recording wasn’t sent to Yandex Metrica.
- The user was running programs that might prevent Session Replay from working.


{% endcut %}

{% cut "Why can’t I view some sessions?" %}

Some sessions can’t be viewed because the page content is too large. For example, this can happen if your website structure is too complex.

{% endcut %}

{% cut "What IP network does the Session Replay report show data for?" %}

The report only includes data for the IPv4 protocol.

{% endcut %}

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[Chat with us](https://yandex.com/chat/#/user/036e6a02-3620-9cdc-4c5e-a34667a7379e?utm_source=spravka){.button}

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<div class="cut-button">

{% cut "Write an email" %}

Select a question to find a solution.

{% list tabs radio %}

- Incorrect site content was recorded

  The page content in the recording may be different from the actual content. It’s likely that the CSS on the site frequently changes. In this case, add the content hash to the style file names. This will make the file name change every time you update its contents. For example, `style.390b32d4d49d5e7d.css` will become `style.0c573d460df87d4de5a4.css`. This lets Session Replay use the style that the site visitor sees when it records a session.

- Error during playback

  Do the following:

  - [Clear the](https://yandex.ru/support/browser/personal-data-protection/cache-memory.html?lang=ru#clearing-cache) browser cache.
  - Disable all plugins and browser extensions.
  - [Delete the browser cookies](https://yandex.ru/support/browser/personal-data-protection/cookies.html#del-cookie).
  - Check the firewall settings. It’s possible that the firewall is blocking the Yandex Metrica tag script. The tag could also be blocked by the [Adblock Plus](https://adblockplus.org) extension.

  {% cut "I followed the recommendations, but the error persists" %}


  <div style="padding: 15px;
       margin: 10px 0;
       background: #FFFFFF;
       border-radius: 10px;
       border: 1px solid var(--g-color-line-generic);">
    <iframe style="background: #FFFFFF;"
          height="700"
          width="100%"
          frameborder="0"
          src="https://forms.yandex.com/surveys/1711/?&iframe=1&lang=en">
    </iframe>
  </div>

  {% endcut %}

- Other questions

  
  If you have more questions about Session Replay, submit them in the form below. Provide an example of a session with incorrectly displayed data and specify the full version of your browser.

  <div style="padding: 15px;
       margin: 10px 0;
       background: #FFFFFF;
       border-radius: 10px;
       border: 1px solid var(--g-color-line-generic);">
    <iframe style="background: #FFFFFF;"
          height="700"
          width="100%"
          frameborder="0"
          src="https://forms.yandex.com/surveys/1711/?&iframe=1&lang=en">
    </iframe>
  </div>

{% endlist %}

{% endcut %}

</div>

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#|
||
Useful links

- [Demo tag](https://metrica.yandex.com/r/dashboard?)
- [Add a tag](https://metrica.yandex.com/add/)
- [Free tag setup](https://yandex.com/promo/freeservice/metrica?utm_source=help_metrica_en&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.com/adv/edu/online/metrika?utm_source=metrika_help&utm_medium=web&utm_campaign=static&utm_content=useful_links)

||
|#

</div>

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