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To remove a page from your Collection, you can do one of the following <test>:
Add an exclude rule. You can set an exclude rule to instantly remove pages from your collection. Rules can be set for a single URL, or for multiple records that match the rule. For example, excluding every record that contains ‘blog’ in the URL. Once an exclude rule has been created, the crawler will not index these pages until the rule has been removed.
Add a no-index tag to the page. The crawler respects these tags, and the next time the page is indexed it will be removed from your collection.