C-Rank evaluates the blog, not just the post
C-Rank scores a blog’s authority within a specific topic based on its history: how long it has published in that category, how consistently, how readers engage with it, and whether its content demonstrates genuine expertise. A blog that has published Korean beauty content weekly for three years carries C-Rank authority that a new blog cannot replicate with a single good post. This is why buying one-off posts on random blogs produces nothing: the blogs lack topical authority, so the content never surfaces.