Pillar pages are the foundation of your website. They are the pages that you want to rank for your most important keywords. The following items are from Lee Wilson.
Through the use of pillar pages, you are able to land people at the heart of the topic they are interested in.
Site speed and mobile-friendliness as ranking factors. Don’t forget to check PageSpeed and Google Search Console’s Core Wev Vitals.
Core Web Vitals (CWVs) are a more recent manifestation of this.
Centralizing all related topical content from one main landing destination (the pillar page). For example, Home page, Solution page, and Product comparison page.
Natural, Value-Based, Link Building.
With your pillar pages you are supplying, free, easy-to-access, share and promote content resources, perfect for link acquisition, brand building, and PR.