How to Do Keyword Mapping for Your Entire Website in 2026

Keyword mapping is the process of assigning specific target keywords to specific pages across your site — creating a documented one-to-one relationship between keywords and pages. Without a keyword map, different pages end up competing for the same terms (keyword cannibalisation as covered in our guide to fixing cannibalisation), important keywords go untargeted, and content decisions are made without a strategic framework.

Why Keyword Mapping Matters

A keyword map does three essential things: it prevents keyword cannibalisation by ensuring each keyword is assigned to exactly one page, it identifies keyword gaps — topics you want to rank for that have no existing page — that need new content, and it provides a reference document for every content and optimisation decision going forward.

Building Your Keyword Map

Step 1 — Crawl your site. Use our site scanner to get a complete list of every page on your site. This is your mapping canvas.

Step 2 — Assign primary and secondary keywords to existing pages. For each page, identify the one primary keyword it most naturally targets and two to three secondary keywords. Check our keyword density checker on each page to verify the intended keywords actually appear with appropriate frequency.

Step 3 — Identify cannibalisation. Look for keywords assigned to multiple pages. As we covered in our guide to keyword cannibalisation, resolve conflicts by designating one page as the primary target and either merging content from the other or redirecting it.

Step 4 — Identify gaps. List every keyword you want to rank for. Any keyword without a corresponding assigned page is a content gap as covered in our guide to content gap analysis that needs new content.

Step 5 — Maintain the map. Update the keyword map every time you publish a new page or retire an old one. The map only has value if it stays current.

Keyword Map Format

A simple spreadsheet works perfectly: URL, Page Title, Primary Keyword, Monthly Search Volume, Current Position, Secondary Keywords, Status (Live/Planned/Gap). Sort by primary keyword to quickly identify cannibalisation. Sort by current position to identify near-page-one opportunities to prioritise.

Using the Keyword Map for Ongoing Decisions

Before publishing any new content, check the keyword map. If the target keyword is already assigned to an existing page, update that page rather than creating a new one. If it is a gap, create the new page and add it to the map. This discipline prevents the gradual accumulation of cannibalisation that afflicts most sites that have published content over several years without a systematic framework.

Summary

A keyword map assigns one primary keyword to each page, prevents cannibalisation, identifies gaps, and guides every content decision. Build it by crawling your site, assigning keywords to existing pages, resolving conflicts, and identifying gaps. Maintain it as a living document updated with every new piece of content. The keyword map is the single most valuable planning document in an SEO programme.

Missed the previous article? Read: How to Use Data and Statistics to Earn Backlinks at Scale in 2026