Planning, Writing and Optimising a Content Hub
A content hub, sometimes called a topic cluster, is one of the most reliable ways to build genuine topical authority rather than a scattered collection of unrelated blog posts. Done well, it also makes internal linking straightforward because the structure defines it.
Many businesses attempt a hub and stall halfway because the plan was never mapped properly before writing began. A local SEO agency services provider in Fareham will usually start any content programme with exactly this mapping exercise, because it decides everything that follows.
This guide covers how to choose a hub topic, structure the pillar and supporting pages, link them correctly, and optimise the whole cluster over time.
Key takeaways
- Choose a hub topic broad enough to support ten or more supporting articles.
- Map sub-questions before writing anything; they become your supporting pages.
- The pillar page answers the topic broadly; supporting pages go deep on one part.
- Every supporting page links to the pillar, using varied anchor text.
- Link supporting pages to each other where the topics genuinely overlap.
- Publish in a logical order, starting with the highest-search-volume sub-questions.
- Review the whole cluster's performance together, not page by page.
What is an SEO content hub?
A content hub is a group of pages built around one central topic: a pillar page covering the subject broadly, and a set of supporting articles each answering a specific sub-question in more depth. The structure mirrors how people actually research a subject, moving from a general question to specific ones.
Search engines use this structure to understand that your site covers a topic comprehensively, which is a meaningful factor in topical authority — a site with a genuine, interlinked cluster tends to outrank one with isolated articles on the same subjects.
How do you plan a content hub before writing it?
Planning takes longer than most teams expect, but skipping it produces a hub with gaps, overlaps and no clear internal linking logic.
- Pick the topic. Choose something broad enough to sustain ten-plus articles but specific enough to stay coherent.
- Collect the questions. Use People Also Ask, Search Console queries, forums and your own sales conversations.
- Group them. Cluster similar questions into distinct supporting-article topics with no significant overlap.
- Map search intent per group. Some questions need a guide, some a comparison, some a checklist or table.
- Sequence publication. Publish the pillar and the two or three highest-demand supporting articles first.
How should a content hub be structured?
| Page type | Role | Typical length |
|---|---|---|
| Pillar page | Broad overview of the whole topic | 1,500–3,000+ words |
| Supporting article | Deep answer to one sub-question | 800–2,000 words |
| Comparison article | Contrasts two approaches or options within the topic | 1,000–1,800 words |
| Definition article | Answers a single "what is" question precisely | 600–1,200 words |
The right length for any single page still depends on the depth the question demands — see how many words an SEO page should have for that decision.
How do you link a content hub together correctly?
Internal linking is what turns a set of separate articles into a genuine hub. Get the pattern wrong and search engines see disconnected pages rather than a coherent topic.
- Every supporting article links up to the pillar, using a different anchor phrase each time — see how to optimise anchor text for internal links.
- The pillar links down to every supporting article at the relevant point in its structure.
- Supporting articles link sideways to each other only where the sub-topics genuinely overlap.
- Avoid linking every article to every other article regardless of relevance — that dilutes the signal rather than strengthening it.
For the wider principles behind link placement and anchor choice across a whole site, see the internal linking guide.
How do you optimise a content hub after publishing?
A hub is not finished at publication. Optimisation is an ongoing process of filling gaps, merging overlaps and refreshing pages that lose relevance.
- Check Search Console query data per page for questions the current content misses.
- Merge or redirect supporting articles that end up competing for the same query.
- Add new supporting articles as new sub-questions emerge in your industry.
- Update the pillar page whenever a supporting article covers something newly relevant.
- Track the cluster's combined organic traffic and rankings, not just individual pages.
How does a content hub help with AI Overviews and AI search?
AI systems favour sources that demonstrate depth across a topic, not just a single strong page. A well-linked hub signals exactly that kind of coverage, and consistent internal linking helps an AI system trace which of your pages is the definitive answer to a specific sub-question rather than a generic overview.
Assistants such as ChatGPT and Perplexity also tend to surface the most specific matching page for a query rather than a broad pillar, so having genuinely deep supporting articles increases the number of distinct opportunities for your site to be cited.
Content hub glossary
- Content hub / topic cluster — a pillar page and its linked supporting articles on one subject.
- Pillar page — the broad overview page at the centre of a hub.
- Supporting article — a page answering one specific sub-question within the hub.
- Topical authority — the depth and credibility a site demonstrates on a subject.
- Content gap — a sub-question within the topic that no page currently answers.
- Keyword cannibalisation — two pages competing for the same query.
Frequently asked questions
How many articles does a content hub need?+
There is no strict minimum, but most genuine hubs have at least eight to fifteen supporting articles alongside the pillar. Fewer than that usually indicates the topic was too narrow for a full hub.
Should I build the pillar page or supporting articles first?+
Publish the pillar early, even in a lighter first version, so supporting articles have somewhere to link back to. Expand the pillar as supporting articles go live.
Can a content hub include existing older articles?+
Yes, and it usually should. Map existing content into the cluster structure first, then identify genuine gaps before writing anything new.
How long does a content hub take to show results?+
Individual supporting articles can rank within weeks, but the combined authority effect of a full hub usually builds over three to six months.
What happens if two supporting articles overlap too much?+
They compete for the same query and dilute each other's rankings. Merge the weaker one into the stronger and redirect it, then update internal links accordingly.
Do all supporting articles need to link to every other one?+
No. Link only where the sub-topics are genuinely related. Forced links between unrelated pages weaken the signal rather than strengthening it.
Plan the structure before you write a single page
A content hub works because the structure is decided before the writing starts: one topic, a mapped set of sub-questions, a pillar, and supporting pages linked with intent rather than habit.
Build it in that order and the internal linking, topical authority and AI citation opportunities follow naturally from the plan itself.
Related reading
Internal linking for SEO
The cheapest lever in SEO and the most underused. How to link your own pages properly.
How many words should an SEO page have?
There is no ideal word count. Realistic ranges by page type, and how to decide when a page is finished.
Optimising internal link anchor text
Exact-match, partial and branded anchors — how to mix them for relevance without over-optimising.