One topic, many searches
Google does not count keywords on a page. Its SEO Starter Guide says the length of content alone does not matter for ranking, and there is no ideal number of headings. What matters is whether the page fully answers one need.
So the real limit is the topic. A water heater replacement page can cover "replace water heater," "new water heater cost" and "tankless water heater installation." Those searches share one buyer. An emergency plumbing page needs its own space, because that buyer has a burst pipe and no time to read.
A planning guide by page type
| Page type | Keyword target | Its job |
|---|---|---|
| Service page | One service plus its close variations | Rank for buyer searches and turn visits into leads |
| City page | One area plus the services you offer there | Win local searches with real local proof |
| Guide or FAQ | One question plus natural follow-ups | Answer the question and link to a service page |
| Homepage | Your brand plus your main category | Explain who you help and route people onward |
The split test
Ask what each keyword needs to convert. If two keywords need different proof, photos, prices, FAQs or calls to action, they need separate pages. If one page could answer both buyers without a detour, keep them together.
- Can you describe the page topic in one sentence?
- Does the title tag focus on one main topic?
- Do the headings stay on that topic?
- Is there one main action, like call or book?
How to spot pages that compete
Two pages chasing the same keyword split clicks and confuse Google. Open the Performance report in Search Console, filter by a query and check which pages appear. If two pages trade places for the same search, merge them or give each a clearer job.
Recommended action. List your service pages with one main topic each. Wherever two pages share a topic, combine them into one stronger page and redirect the other.
See also whether one page can rank for multiple keywords. Our SEO services clean up overlapping pages as part of every site plan.