Sending data to the server by the browser

Yandex Browser needs to send data to the server for:

  1. Performing technical tasks, such as increasing the data transfer speed or phishing protection.
  2. Collecting statistics on browser usage, along with debugging data.

Data transfer to the server can be:

All the situations when data transfer to the server is enabled are listed below. If you want to block data exchange with the server in any of the situations described below, disable the corresponding function in the Settings (to go to Settings, click  → Settings).

Sending data by default

Data transfer is enabled by default for the following browser features:

  • Sending crash reports. Crash reports are sent to the server if the browser or individual components close unexpectedly. You can disable sending crash reports in the settings, System, Personal data settings. We ask that you not disable this setting because these reports help developers fix errors.
  • Protection against malware and malicious sites If you visit a suspicious site, the browser sends the hash prefix of this page to the server.
    Technical details
    The Yandex condensed database of malware and phishing sites is downloaded to your computer. The condensed database contains the hash prefixes of dangerous pages' addresses. Before opening a page, the browser calculates the address hash and then checks the hash prefix against the local database. If there is a match, the browser sends the server the prefix of the requested page and gets a response with the full hashes of malicious pages that start with this prefix. If the list of dangerous pages has the hash of the requested page, the page is blocked.

    Additionally, whenever you download a file, the browser checks it for malware. Information about the file, the history of the tab the file was downloaded from, and certain other data is sent to the server while the file is being checked.

    You can disable protection from malicious sites and malware in Settings, on theProtect tab.

    Note. We don't recommend disabling it, because Yandex Browser will stop blocking pages on infected and phishing sites. This makes your computer vulnerable to infection by malware.
  • Navigation error help. If you enter a non-existent website address, the browser sends this address to the Yandex server. The Yandex web service helps you find the desired page or suggests viewing a saved copy of the website if the page was deleted and its copy was saved. You can disable navigation error management in the settings. Go to General settings and under Search, deselect Offer corrections for typos in site addresses.
  • Making suggestions. When you enter a query or a website address in the SmartBox, it is sent to the default search engine and is used for generating suggestions for addresses and queries. You can disable suggestions in settings. Go to General settings and under Search, deselect Show suggestions when entering addresses and queries.
  • Autofill for forms. The browser can remember your name, address, email, phone number and other information when you enter it for the first time, so that you can complete forms with just one click. This information is not sent to the server. However, if the browser asks the server for information about what the form fields mean, the form's address is sent to the server. You can disable Autofill on the Tools page in Settings.

Sending data after the user activates a feature

The following features initiate data transfer only after the user has activated them:

  • Syncing. When devices are synced,the browser sends bookmarks, passwords, history, information for autofill forms, extensions, and open tabs to the Yandex server. You can turn off syncing or adjust the list of data to sync at any time when using the browser.
  • Sending statistics. If you enable sending statistics, depersonalized data about browser usage will be transmitted to Yandex. This information will help to identify problem areas in the Yandex Browser interface, kernel, and other components, along with problems in other Yandex servers.

Sending data when features are used

The following features transmit data only while they are in use:

  • Page language detection. To detect the language of a web page, the browser can use local tools alone or both local and server tools. The second method is more accurate, but it requires part of the page text to be sent to the server. To only use local tools, deselect Send text snippets to Yandex to improve translation quality in the settings under Tools.
  • Page translator. If the page language is different from the browser interface language, the browser suggests page translation. If you agree, the text on the page is sent to the server, which returns it translated. You can disable Page translation on the Tools page in Settings.
  • Word and phrase translator. The browser also allows you to translate individual words and phrases on the page by sending them to the server. You can disable Translation of words and phrases on the Tools page in Settings.
  • User location. Some websites request information about your location. You can view and edit the list of websites that you allow to track your location, or block location tracking on all websites.

Collecting statistics

  • Browser installation. The browser sends information about the installation process, such as the time needed to download a file.
  • Updates. The browser periodically requests information about updates from Yandex servers and transfers some technical data to the server.
  • Calculating the number of users. Completely depersonalized information is periodically sent to the server in order to count the total number of Yandex Browser users.
  • Display the Tableau and tabs. The browser periodically sends addresses of your visited websites to the server in order to get their logos for the Tableau and tabs. We may make it possible to turn this off in the future.
  • Uninstall the browser. Personalized technical information about the system is not sent.