Remove Junk Data in SharePoint 2013 Search

How we can remove junk record from the search and how we can remove the content which never help in search results.

Search Result means - search result should give the result which actually meaningful and relevant not like links, folder etc. No one will be interested in going into folder and search the content  and AllItem.aspx page of List and Library - We can easily eradicate this type of junk records.

Below defined few area - we should always remember while setting up the search results:-

1. Remove excess external content type links and nonsense
2. Remove Folders from search results
3. Remove overall list results (AllItems.aspx)
4. Remove Link List Items
5. Remove Link Lists
6. Remove Explorer Views (web folder results)

User can navigate to any verticals or search navigation page and edit the same and modify the query of search result web parts, which  depicts in below images-

Remove the External Content Type:-

Remove the Folder from search:-

Remove overall List Results (AllItem.aspx)

Remove the Link List Items

Remove the Link Lists

Remove Explorer Views:

Final Query will be :-

At the end , we will more filter records which user want to see instead of junk data.