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How to Create an SEO Topical Map (Step-by-Step)

The five-step process for building a topical map: central entity, entity extraction, cluster shapes, page list, and a validation checklist.

· 7 min read
Topical map architecture diagram showing a hub and spoke cluster

A topical map is the page-level plan for owning a subject: every page you need, what each one targets, and how they link together. Without one, content production turns into random publishing, and random publishing produces pages that cannibalize each other while leaving obvious subtopics uncovered.

Building one takes five steps. None of them require special tools, though tools compress the timeline; a careful manual build takes a couple of days of research for a mid-sized topic.

Step 1: pick the central entity

Start with the thing you want to be known for, phrased as an entity rather than a keyword. “Payroll software” is an entity; “best payroll software 2026” is one of hundreds of queries about it.

The distinction matters because search engines evaluate sites at the topic level. If your site covers payroll software thoroughly (setup, compliance, pricing, integrations, comparisons, mistakes), you become a credible result for queries you never explicitly targeted.

Pick one central entity per map. If your business spans several (payroll, invoicing, expense tracking), build one map per entity rather than a mega-map, so each cluster stays coherent.

Step 2: extract the entities around it

Now list everything a genuine expert would cover. Four sources, in the order I’d use them:

  1. The live SERP. Search your central entity and harvest subtopics from the top 10 pages’ headings, People Also Ask, and related searches.
  2. Competitor sitemaps. A competitor who already ranks has done part of this work; their URL structure shows how they carved up the topic.
  3. Entity extraction tooling. Agility Writer’s Entity Extraction tool analyzes content and ranks the entities in it, and can compare your page against a competitor URL to show which entities you’re missing.
  4. Your own customer questions. Support tickets and sales calls surface subtopics the SERP hasn’t saturated yet, which is where the easy rankings are.

For “payroll software,” this produces entities like tax filing deadlines, contractor vs employee classification, direct deposit setup, payroll compliance penalties, integration with accounting tools, and migration between providers.

Worked example going from seed keyword to entity tree to page list

Step 3: choose the cluster shape

Group the entities into clusters, then decide how the clusters connect. Two patterns cover almost every site:

PatternBest forLinking style
Hub and spokeNew sites or new topics establishing authorityA pillar page links down to 5-15 support pages; every support page links back up
MeshLarge, mature sites with deep archivesRelated pages cross-link on shared entities, without strict hierarchy

Start with hub and spoke. It is easier to brief writers on, easier to validate, and easier for search engines to interpret. Meshes emerge naturally later as clusters start touching.

Step 4: turn clusters into a page list

Assign each entity a page, a page type, and a working URL. The page type must match what actually ranks: search each target query and look at the top three results. If they are all how-to guides, a product page will not rank there no matter how good it is.

The output of this step is a flat table your writers can execute: URL, target query, page type, parent hub, and the 2-3 internal links each page must carry. That table is the topical map.

Step 5: validate before you write anything

Every hour spent validating the map saves many hours of rewriting. Four checks:

  • Cannibalization: no two planned URLs target the same primary intent. If two rows in your table would satisfy the same searcher, merge them.
  • Depth: each cluster has enough support pages to demonstrate expertise (see the FAQ below for ranges). One hub with two spokes convinces nobody.
  • Intent match: every page type matches its SERP, per step 4.
  • Link paths: every planned page connects to the hub, and the hub connects to at least one existing page with authority, so the new cluster isn’t an island.

Topical map validation checklist cards

If you already have published content, run the Topical Authority Audit Tool first. It maps your current site structure, finds pages fighting over the same keywords, and outputs a create/optimize/redirect plan, which tells you how much of the new map you can build from existing pages instead of new ones.

The faster version

The manual process above is exactly what the Topical Map Helper automates: give it a keyword or just your URL (it works out the main topic), and it produces the cluster structure and page list, in any of the languages Agility Writer writes. For local businesses it also generates the location-page structure.

One honest caveat, and it applies to every mapping tool on the market: no automated tool produces a 100% perfect topical map. Treat the output as a strong first draft, then run step 5 on it yourself before you brief a single article. Review and refine is part of the workflow, not a failure of it.

What to do next

Pick your most important topic and run steps 1-2 this week; that’s the research half, and it’s reusable even if your cluster shape changes later. Then either finish the map manually or run it through the Topical Map Helper and spend your time on validation instead of spreadsheet assembly. For the tool landscape beyond our own, see our review of topical map tools.

Further reading

Frequently Asked Questions

How many pages should a topical cluster have?
Typically 1 hub page plus 5-15 support pages. Below 5 the cluster is too thin to signal depth; above 15 you usually get more value starting the next cluster.
Do I need a topical map before I start writing?
For a cluster-led strategy, yes. Publishing without a map wastes internal link equity and produces pages that compete with each other for the same query.
How does a topical map differ from a content calendar?
The map is structural: which pages exist and how they relate. The calendar is temporal: when each page ships. Build the map first, then schedule it.

Ready to put this into practice?

Learn more about Topical Map Helper or start your $1 trial.