How to use topic clusters to structure your content

Table of Contents

Most sites publish content the same way: whatever keyword idea comes up next, written as a standalone page with a couple of internal links thrown in afterward. It works, slowly, and it leaves a lot of topical authority on the table.

A topic cluster is the alternative: one broad pillar page covering a subject, surrounded by narrower spoke pages that each go deep on one piece of it, all deliberately linked together. This guide covers how to actually build one, not just the diagram version.

What a topic cluster actually is #

The pillar page covers a broad topic comprehensively, at a level that would be too shallow to rank well for any single specific long-tail phrase within it, but works as the hub everything else points to. Think email marketing rather than how to write a subject line that doesn’t get marked as spam.

The spoke pages each go deep on one specific piece of the pillar’s territory, the long-tail, specific questions and subtopics a broad pillar page can’t do justice to.

The links are what actually make it a cluster rather than just a pile of related pages. The pillar links out to every spoke, every spoke links back to the pillar, and spokes link sideways to each other where genuinely relevant.

Practical tool

See a cluster mapped out

Why bother with the structure #

Topical authority. A pillar surrounded by genuinely thorough supporting content signals to Google that you cover the subject broadly and deeply, not just one lucky page that happens to rank.

Better internal linking, automatically. Instead of hunting for internal link opportunities after the fact, the cluster structure builds them in from the start.

Easier content planning. Once you’ve mapped a cluster, you’ve got a content calendar’s worth of spoke topics already scoped, instead of guessing what to write next.

A better path for readers. Someone landing on a specific spoke page who wants the bigger picture has an obvious next click, and someone on the pillar looking for depth on one part has an obvious next click too.

Choosing a pillar topic #

Broad enough to need spokes. If you can cover it thoroughly in 800 words, it’s a spoke, not a pillar.

Commercially or strategically relevant, not just broad for the sake of it. A pillar topic should map to something your business actually wants to be known for.

Realistic to compete for, at least eventually. An enormous pillar topic dominated by huge, established sites might be worth building toward, but shouldn’t be your first cluster.

Practical tool

Would this make a good pillar?

Where clusters actually break #

Practical tool

Five ways clusters fall apart

Topic cluster checklist #

Ten items. Check them off as you go, your progress is saved in your browser.

Practical tool

0 / 10 done

Planning

Chose a pillar topic broad enough to genuinely need spokes Mapped spoke topics to distinct, non-overlapping subtopics Checked each spoke has real search demand behind it

Content

Pillar covers the topic broadly without trying to rank for every spoke keyword Every spoke is genuinely useful on its own, not just link bait

Linking

Pillar links out to every spoke Every spoke links back to the pillar Related spokes link sideways to each other where relevant

Upkeep

Have a plan to add new spokes as new subtopics emerge

If you want a second opinion on how your own content is structured, or help mapping your first cluster, get in touch.