Google is claimed to consider a website’s most important subject matter when assessing backlinks. They used to point out this in How Research Performs again in 2021 (bolding mine): 掌上书苑的资源很全，不过分类做的不是很好，需要自己根据书名进行搜索，下载需要注册用户，还支持推送。 The above mentioned article that we linked to (200+ websites and blogs which accept visitor posts!) is a wo... https://googlemap94714.smblogsites.com/36255655/wordpress-options