Does blocking URL parameters in Google Search Console remove pages from index?

by Tomáลก Nosek   Last Updated August 08, 2019 08:04 AM

In GSC there is a possibility of telling Google how to deal with URL parameters. Google suddenly started to index 600k+ URLs with parameters on our website. I have set the parameter in GSC as uncrawlable and about 400k pages dissapeared from index. So i thought everyting works as expected and the rest of the pages will be removed as well. After a month there is 300k pages again indexed.

Should It work and should I wait or do I have to set the pages as noindex?

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