<a href=https://kwork.com/offpageseo/34787283/l ... ier-3>Link pyramid tier 1 tier 2 tier 3</a>
SEO backlinks for SEO are divided into anchor and non-anchor links.
Anchor texts contain a key query, because this keyword is fundamental for SEO performance.
Bare links are just as important – these are plain URLs, and user interaction is important because it creates a path for search robots; bots go the site and deeper pages, which benefits the site.
Updates are shared through ahrefs. If there are fewer links for one of the services, I report on the service that shows more in backlink volume as a result of indexing lag.