We all know that Google uses the Domain authority (DA) & Page Authority (PA) or similar to DA & PA to rank the websites or web pages.
Yes, Google treats them separately.
In “English Google Webmaster Central office-hours from September 3, 2019” someone asked to confirm whether Google ranks some parts of the websites rank more quickly compared to other parts of the site.
In more details:- He asked that the articles he published under the blog section are ranking much more quickly compared to the articles published under the news section.
Here is the video:
To this question, John Muller said he is not really sure it is the case but Google is smart enough to pick the differences between the adult content and normal content on a website.
Years ago this question was answered by Rand Fishkin in one of his Whiteboard Friday videos. But I couldn’t find the link to that video feel free to post in comments if any of you found it.
In that video, he explained that content on different parts of the website rank differently.
But why Google does this?
Let’s take the case of Moz website. They publish blog posts regularly and publish Whiteboard Friday videos on weekends. In these cases, Google ranks those two contents very differently.
The reason is pretty simple. When you publish those contents Google will first look for the performance of previous contents similar to them on that website. If they performed well in search results then Google thinks that the new content will likely perform well in similar way. This is the reason news websites rank more quickly in SERPs compared to other websites.
Also, observe that John said Google will crawl some parts of the website much faster compared to some other parts of the website when it thinks the pages are more important. With that being said it is clear that Google will rank different parts of the website differently.
Conclusion: So I would strongly recommend you not to change the subdirectories too often especially those are already performing well in SERPs. Because it takes time for Google to rank the new contents under a particular section.