Link pyramid, tier 1, tier 2, tier 3 Tier 1 - 500 connections with integration inside writings on publishing domains Secondary - 3000 URL Rerouted connections Level 3 - 20000 references combination, remarks, writings Using a link hierarchy is beneficial for online directories. Necessitate: One reference to the platform. Keywords. True when 1 keyword from the website heading. Note the supplementary functionality! Vital! First-level references do not intersect with 2nd and 3rd-rank connections A link structure is a device for enhancing the flow and inbound links of a internet domain or social network