This approach revolves around powering up important web pages by building a structured chain of backlinks.
Rather than pointing low-quality links straight at your main website, tiered SEO strengthens your supporting content at the top layer, which in turn pushes link juice to your primary target.
This is an intelligent way to reduce risk while still gaining ranking improvements.
If you're interested in this more info method, check out this supporting article
Comments on “Multi-layer SEO strategies are still effective in today's SEO world.”