SEO · 6 min read
Content cluster strategy for UK businesses in 2026
How to build topic clusters that rank in classic search and AI Overviews — pillar pages, supporting articles and internal linking explained.
By Jack Frampton, Multi-Channel Marketer at Queen's College, Taunton · Published 30 June 2026
Single posts don't move the needle anymore. Topic clusters do. Here's the structure I use for clients in Taunton and across the South West to compound organic growth.
Pillar + spoke architecture
One long pillar page (~2,500 words) covering the topic broadly, linked to 8–15 shorter spoke posts each covering one sub-topic in depth. Spokes link back to the pillar. The pillar becomes the canonical hub.
Pick the pillar like a buyer
The pillar topic should match a high-volume, mid-funnel keyword your customer searches before buying — e.g. "WordPress web design Somerset" rather than "what is WordPress".
Internal linking that actually compounds
Every spoke links to the pillar. The pillar links to every spoke. Spokes link to 2–3 sibling spokes where contextually relevant. Use descriptive anchor text, not "click here".
Refresh quarterly
Update the pillar every quarter with new data, screenshots and links. Search engines reward freshness on hub pages disproportionately.
Frequently asked questions
- How many posts do I need in a cluster?
- Minimum 8 spokes around 1 pillar to see compounding. More than 15 and you're probably duplicating intent — tighten or merge.
- Should the pillar page sell or just inform?
- Inform first, sell second. Pillars rank best when they're genuinely the most useful page on the topic. Conversion CTAs at the end, not the start.
- How long should a pillar page be?
- Around 2,000–3,500 words with clear sectioning. Long enough to be definitive, short enough to actually be read.
- Can I retrofit clusters onto existing blogs?
- Yes — group existing posts by topic, pick or create a pillar, and add internal links. This is one of the highest-ROI SEO projects available.