---
metadata:
  - name: generator
    content: Diplodoc Platform v5.50.6
alternate:
  - https://browser.yandex.com/help/en/support/zout_logs.md
  - https://browser.yandex.com/help/kk/support/zout_logs.md
  - https://browser.yandex.com/help/ru/support/zout_logs.md
  - https://browser.yandex.com/help/tr/support/zout_logs.md
  - https://browser.yandex.com/help/uz/support/zout_logs.md
---
> **Documentation Index:** Fetch the complete configuration index at https://browser.yandex.com/help/en/llms.txt




# Sending logs to the Support service


To help resolve problems in [Yandex Browser](https://browser.yandex.com/), Yandex Support asks you to send logs from your computer. Logs help us get to the root of the problem and fix it more quickly.

You don't need any special knowledge to get the logs. It's easy and doesn't take long.

In response to our message, we ask you to send the following log files to support:

- net-export.json
- hot_trace.json
- cold_trace.json

## How to record logs

#### net-export.json

1. Enter `browser://net-export` in the address bar.
1. Click **Start Logging to Disk**.
1. In the file selection box that opens click **Save**.
1. On another tab, reproduce the problem with site access (or unresponsiveness).
1. Return to the `browser://net-export` tab and click **Stop Logging**.
1. Send the saved file and problem description to reply to the letter with the request for logs from support.

#### hot_trace.json

1. Enter `browser://tracing` in the address bar.
1. Click **Record**.
1. In the window that opens, select **Javascript and rendering**.
1. Click ![](../_image/right-triangle.png) to the right of **Edit categories**.
1. In the **Disabled by Default Categories** column, select **memory-infra**.
1. In the lower part of the window, click **Record**.
1. Switch back to the tab where the problem occurred, and leave it active for a minute.
1. Go back to the `browser:tracing` tab and wait until “Buffer usage:100%”.
1. Click **Stop**.
1. Click **Save** under the address bar and save the file with the name `hot_trace.json`. The file appears in your Downloads. To navigate there, click ![](../_image/recently-uploaded-icon.png).
1. Send the saved file to us in a response to the message from Support requesting logs.

#### cold_trace.json

1. Launch Yandex Browser with the required keys from the command line:


    {% list tabs %}

    - Windows (versions 7–10)

        ```
        C:\Users\YOUR_USERNAME\AppData\Local\Yandex\YandexBrowser\Application\browser.exe --trace-startup --trace-startup-duration=30 --trace-startup-file=C:\Users\YOUR_USERNAME\Desktop\cold_trace.json
        ```

        Instead of YOUR_USERNAME enter your account name.

    - macOS

        ```
        cd && /Applications/Yandex.app/Contents/MacOS/Yandex --trace-startup --trace-startup-duration=30 --trace-startup-file=$PWD/cold_trace.json
        ```

    {% endlist %}





1. Repeat the action that caused the problem, or open the tab that is loading too slowly.
1. Close Yandex Browser a minute later. The `cold_trace.json` file appears on your Windows desktop.
1. Send the saved file to us in a response to the message from Support requesting logs.