Some pages with GET parameters in the URL duplicate the contents of other pages (without GET parameters). For example, https://example.com/tovary ?from=mainpage duplicates https://example.com/tovary . Due to their circumvention, information about the pages important to you may be transmitted more slowly to the search database, which may affect the state of the site in the search.
Look at the examples. If there are duplicates in the search due to GET parameters, we recommend using the Clean-param directive in robots.txt so that the robot ignores insignificant GET parameters and combines all signals from the copy pages on the main page. When the robot finds out about the changes made, pages with insignificant GET parameters will disappear from the search.
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