Hi seniors, I am newbie and really need you help when I come to building my structure. I have read from a few places that recommend only 3 tiers in silo structure building. Therefore I just wish to clarify whether does it hurt a site's seo if a site is built to tier 4 like the attached image. I am using the recent hype of pokemon as an example. Right now i am at the point where I am confused whether I should build those tier 4 articles or not. (Of cos i dont mind adding more articles to my website, but i just wanna make sure it doesnt hurt). Some of the resources that suggests 3-tiers structure: In this post, BassTrackerBoats mentioned: "I do only go 3 deep as much more than that causes an issue with the search engine bots from what I have experienced." Also found this by searching google: http://www.affiliatemarketertraining.com/3-tier-website-link-structure/ Really need you advise on this, thank you in advance.