How much content is duplicate content? Differentiate between website pages, help-guides and blog-posts.

[vtmoz]

Hi all,

I wonder that duplicate content is the strong reason beside our ranking drop. We have multiple pages of same "topic" (not exactly same content; not even 30% similar) spread across different pages like website pages (product info), blog-posts and helpguides. This happens with many websites and I wonder is there any specific way we need to differentiate the content? Does Google find the difference across  website pages and blog-pots of same topic? Any good reference about this?

Thanks

[effectdigital]

If you can give me ten URLs that you think may be conflicting with each other, I'll use Boolean string similarity to compare the content on each page which 'should' be unique (aka not the navigation and stuff like that). Might be helpful

[vtmoz]

Thanks for offering the help. Please check below pages as sample:

https://www.vtiger.com/all-in-one-crm/contact-management/

https://www.vtiger.com/docs/contacts