Structuring Internal Links Between Pillar Pages and Cluster Content

A pillar page and a folder of related cluster articles isn't a hub until the internal linking connects them deliberately. Linking is what turns a collection of individually-ranking pages into a structure that search engines read as a coherent topic cluster — and it's the part teams most often do halfway, adding a link or two and calling it done.

The core linking pattern

Every cluster page should link up to the pillar page, and the pillar page should link down to every cluster page beneath it — a two-way relationship, not a one-way mention. Beyond that vertical link, cluster pages covering closely related sub-topics should link sideways to each other where the connection is genuinely useful to a reader, not just for the sake of link count. A cluster article on "email subject line testing" naturally links to a sibling article on "email open rate benchmarks," but forcing a link to an unrelated cluster on "email list segmentation" just because it's in the same hub adds no reader value and dilutes the relevance signal.

Where links belong on the page

Place the pillar link within the body content, in a sentence where it's contextually relevant — not only in a generic "related articles" box at the bottom, which carries a weaker signal and gets less genuine reader engagement. On the pillar page itself, structure the cluster links as part of the topic overview sections, so a reader scanning "email marketing" naturally encounters "for a full guide to deliverability, see our deliverability guide" right where deliverability comes up, rather than buried in a footer list.

Write descriptive, varied anchor text

Avoid "click here" or repeating the exact same anchor text for every link to a given page. Use natural variations of the target page's core keyword — "improving email deliverability," "deliverability best practices," "why emails land in spam" might all reasonably link to the same deliverability cluster page from different contexts. This reads naturally to users and avoids the over-optimization that comes from robotically repeating one exact-match phrase across dozens of links.

Build a visible hub navigation element

Beyond in-content links, add a structured "in this guide" or "related topics" module on both the pillar and cluster pages, listing the other pages in the hub with short descriptions. This gives readers an easy way to explore the full hub regardless of which page they landed on first, and gives search engines an additional, clean signal of the hub's structure. Keep this module focused on the actual hub — don't let it become a dumping ground for unrelated "popular posts" that blur the topical signal.

Maintain the structure as the hub grows

• Every time you publish a new cluster page, update the pillar page to link to it — this step gets skipped constantly once a hub has ten-plus pages and updating the pillar feels like extra work.
• Periodically audit for orphaned cluster pages that lost their pillar link during a site redesign or content migration.
• When you retire or merge a cluster page, update every page that linked to it rather than leaving dead internal links.
• Use a crawler tool (Screaming Frog or Sitebulb) quarterly to visualize your actual internal link structure and catch gaps the naked eye misses.

Treat internal linking as a standing maintenance task tied to the hub, not a one-time setup step, and the structure will keep reinforcing itself as you add content instead of slowly decaying into a loose pile of tangentially related pages. For a deeper look at this, see our guide, Building Topical Authority With a Content Cluster Strategy.

Don't neglect links from outside the hub

Pages elsewhere on your site — product pages, other blog posts, your homepage navigation — should also link into the hub where genuinely relevant, not just link within it. A hub that only receives links from its own pages is missing an opportunity to pull in authority from the rest of the site. Scan your highest-traffic existing pages for natural opportunities to link into the pillar or a relevant cluster page, which both helps readers and reinforces the hub's topical signal from a wider set of internal sources. For a deeper look at this, see our guide, URL Structuring & Internal Linking.