| # Matomo AnonymousPiwikUsageMeasurement Plugin |
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| [](https://github.com/matomo-org/plugin-AnonymousPiwikUsageMeasurement/actions/workflows/matomo-tests.yml) |
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| ## Description |
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| Track usage of your Matomo service into up to two Matomos: |
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| * your own Matomo (can be configured optionally) |
| * a custom Matomo (can be configured optionally) |
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| ### What is Matomo doing to make sure the data is anonymized? |
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| We are very careful in what we track and we make sure to anonymize data that could contain user data. |
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| * We overwrite the page title as the title could contain the name of the viewed website |
| * We remove any referrer information |
| * We replace URL parameters with a predefined value apart from a few whitelisted ones to make sure no actual token_auth, CSRF token or user defined value will be tracked |
| * We do not just track any outlinks or downloads |
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| We track any information as efficient as possible to not slow down your Matomo. If you have already performance problems with your Matomo we recommend to not install this plugin though. |
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| ### Which data is tracked? |
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| When the plugin is activated, the following data will be tracked: |
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| * The pages and reports that are viewed |
| * The visitors' software and devices data like the used browser and the resolution |
| * Some clicks or interactions with certain selectors or buttons. For example we track an event when a segment is selected but we do not track the actual segment. |
| * In a daily task we track the following data: |
| * Matomo version |
| * PHP version |
| * Number of websites |
| * Number of users |
| * Number of segments |
| * How often which API method was called (only plugin name and method name but no parameters) and how long the API calls took on average. |
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