A pillar page is the hub of a topic cluster. It answers the big question (“What do I need to know about water heaters?”) well enough to stand on its own, while linking out to separate pages that go deeper on each part. It usually targets a broader, higher-volume keyword than the pages around it.
What goes on a pillar page
Coastline Plumbing’s pillar might be “Water heaters: repair, replacement and maintenance in Austin”. It would include:
- A plain-English overview of the main types (tank, tankless, heat pump)
- Short sections on common problems, each linking to a detailed page (“Why is my water heater making popping noises?”)
- A summary of repair versus replacement, linking to a full cost guide
- Maintenance basics, linking to a flushing guide
- The services Coastline offers, linking to the repair and installation service pages
- A clear call to action: phone number and booking link
Each section gives enough to be useful, then hands off to the deeper page for anyone who wants detail.
Why it matters
It ranks for the broad term. A well-linked pillar becomes the obvious page for Google to rank for “water heater repair austin” or “water heaters”, rather than a random blog post.
It distributes value. Links to the pillar (from outside sites and from cluster pages) flow through its internal links to the more specific pages.
It helps visitors find their way. Someone who arrives with a vague question can find the specific answer in one click.
Types of pillar pages
- Guide pillar: “The complete guide to…” style overview, common for informational topics
- Service pillar: a main service page that links to sub-services and related FAQs, common for local businesses
- Category pillar: an ecommerce category page with buying advice that links to subcategories and guides
How long should it be?
As long as it takes to cover the topic at a summary level, and no longer. For many local service topics that’s 1,200 to 2,500 words. Length isn’t the goal; being the clearest starting point is.
Common mistakes
- Trying to answer everything on one page, which makes the cluster pages redundant and the pillar unreadable.
- A pillar with no links out, which makes it just a long article.
- Cluster pages that never link back.
- Pillars on topics you don’t sell. Choose topics tied to revenue.
- Never updating it. As you add cluster pages, add links and summaries to the pillar.
How to plan one
Start with a content brief that lists the sections and the cluster pages each one will link to. RankThat’s Content tools can generate content briefs and topic ideas, and track which subtopics are covered as part of building topical authority.