A pillar page is a comprehensive page on a broad topic that serves as the hub of a content cluster: it covers the subject at an overview level and links out to, and is linked back from, a set of more specific pages (cluster content) that each go deep on one sub-topic.
Definition
A pillar page is a comprehensive page on a broad topic that serves as the hub of a content cluster: it covers the subject at an overview level and links out to, and is linked back from, a set of more specific pages (cluster content) that each go deep on one sub-topic. The structure organises a site's coverage of a theme so both users and search engines can see the relationship between the broad page and the detailed ones, and it concentrates internal link signals on the pillar.
The pillar-and-cluster model is a way to build topical authority deliberately rather than as a pile of unconnected pages. Done well, the pillar ranks for the broad head term while the cluster pages rank for their specific queries and pass relevance and link equity up to the pillar.
In context
For an iGaming affiliate, the pillar-and-cluster model fits the site's structure naturally. A pillar on "online casino bonuses" links to cluster pages on welcome bonuses, no-deposit offers, wagering requirements, free spins, cashback, and bonus terms; a pillar on "[market] online gambling" links to that market's licensing, operators, payment methods, taxes and self-exclusion scheme.
The glossary itself is a large cluster: an A-Z hub as a pillar-like index, with each term page as cluster content, cross-linked to related terms.
Building it means designing the pillar to genuinely introduce and organise the topic (not just be a link list), writing cluster pages that each fully answer their sub-query, interlinking on relevance with descriptive anchor text both ways, and keeping the structure visible to crawlers (the pillar reachable in a click or two from the home page, cluster pages linked from the pillar and from each other where relevant). For a glossary, the practical version is a strong A-Z hub plus topic groupings (SEO terms, payments terms, compliance terms) that act as mini-pillars, with each definition linking to its neighbours.
The payoff is that the whole theme reads to a search engine as organised expertise, which lifts the commercial pages that sit within it.
Worked example
An affiliate builds a "casino bonuses" pillar that introduces every bonus type and links to eight cluster pages, each deep on one type, all linking back. Over a quarter the cluster pages rank for their specific queries and the pillar climbs for the broad term.
The glossary A-Z hub is treated the same way, with topic sub-groups acting as mini-pillars.
Related terms
Frequently asked questions
Browse the full iGaming & affiliate glossary — hundreds of EN/RU terms with examples.
← Back to glossary