RomeoSEO

Keywords and competitors

LSI keyword generator (related keywords)

Enter the main keyword of a page and get what people really search around it: the topics that keep coming up, related searches and the questions people ask, each with monthly US Google searches.

Free · No signup · 5 lookups a day

The main keyword of the page you're writing or improving.

How it works

  1. Type the main keyword of the page you're writing or improving.

  2. We pull the searches Google treats as related to it, and the questions that contain it.

  3. You get three lists: topics to cover, related searches and questions. Copy any of them or download them as CSV.

"LSI keywords" aren't a real thing (but the idea behind them is)

LSI stands for latent semantic indexing, a technique from the late 1980s for finding documents about the same subject when they use different words. It was built for small, fixed collections of documents. Google doesn't use it to rank the web, and Google's John Mueller has said plainly that there's no such thing as LSI keywords.

So why does everyone search for an LSI keyword generator? Because the problem it names is real. A page that ranks well for a topic usually covers that topic the way people think about it: the related ideas, the follow-up questions, the words an expert would naturally use. A page about an SEO audit that never mentions a checklist, a report or what it costs reads as thin to a person, and Google is built to agree with people.

That's what this tool gives you, minus the jargon: the searches and questions that surround your keyword in real Google data, and the topics that keep repeating across them.

How to use the three lists

  • Cover these topics: words that show up again and again in the searches around your keyword, ranked by how many searches they appear in. Each one is a subtopic your page should touch on. Some deserve a section; most need a sentence or an example.
  • Related searches: other ways people search for the same thing. They're useful as wording for headings and as a check that the page answers the same need. One good page can rank for dozens of them, so don't write a page for each.
  • Questions people ask: questions that contain your keyword, most searched first. Put the important ones in the page as headings, with a short, direct answer underneath. That's also the format AI answers and featured snippets like to quote.

What good coverage looks like

Good coverage means a reader with the question behind your keyword doesn't need to go back to Google. Read your page next to the topic list: is each topic there because it helps the reader, or missing because you didn't think of it? Then check the top few questions: could someone find the answer in under ten seconds?

It doesn't mean using every phrase on the list. Pages stuffed with related keywords read badly, and Google is good at spotting wording written for a crawler. If a phrase doesn't fit naturally, the topic behind it can still be covered in your own words.

Common mistakes

  • Pasting the list into the page. Search engines understand synonyms; they don't need every variation spelled out, and readers notice.
  • Writing separate pages for close variants. "seo audit checklist" and "seo audit template" may belong on one page. If you're unsure, our keyword clustering tool checks whether Google ranks the same pages for both.
  • Answering questions nobody on your page would ask. A question with ten searches a month that's off to one side of your topic is better left out.
  • Forgetting intent. If the related searches are mostly "best", "vs" and "pricing", people are comparing options, and a pure how-to guide will miss.

What this tool can't see

The data is Google in the US, in English. It shows what people search, not what the pages ranking today say: to see how competitors structure their page, read the top results yourself or use our content brief generator. Searches with very little volume may be missing, and the topic list only counts words that appear in at least two searches.

Questions people ask

Does Google use LSI keywords?

No. Latent semantic indexing is an old document-matching technique that Google doesn't use for ranking. Google does understand related words and topics, which is why covering a subject thoroughly helps, but there's no special list of "LSI keywords" to add.

How many related keywords should I use on a page?

There's no number. Cover the topics a reader would expect and answer the questions that matter, in your own words. If you find yourself adding a phrase only because it's on a list, leave it out.

What's the difference between related searches and the topics list?

Related searches are whole searches people type. The topics list breaks them down into the individual subjects that keep recurring, such as "checklist", "template" or "cost", so you can see what the page needs to cover at a glance.

Where do the questions come from?

From real searches that contain your keyword and start with, or include, a question word such as what, how, why or can. Each comes with its monthly searches in the US.

Is this tool free?

Yes, five lookups a day without an account, because each one buys live search data. Looking up the same keyword again within a week doesn't count.

Want it done for you?

Romeo writes the page that covers the whole topic

He turns the related searches and questions into a brief, writes the article with a section for each question worth answering, adds links from your other pages, and sends it to you to approve before it goes live.

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