Every sale that starts on Google starts with a keyword — the words a person types when they need something. Keyword research is simply the work of finding out which words your customers use, and which of those words are worth building a page for. It is the first step of SEO, and in my experience as an SEO professional, it is the step most small businesses skip, which is why so many of them rank for terms nobody searches for.

This guide explains keyword research in plain language: where to find keyword ideas, how to tell a good keyword from a waste of time, and how to turn a list of keywords into content that brings customers, not just visitors.

What Keyword Research Actually Is

Keyword research is the process of discovering the search terms people use to find products, services and answers, then choosing the ones your website should target. A keyword can be a single word, like "CCTV camera", or a longer phrase, like "best CCTV camera for home in Bangladesh". The longer phrases are called long-tail keywords, and they are usually where small businesses win, because they are more specific and less competitive.

The goal is not to collect the biggest list. It is to find the terms where three things line up: people search for them, the searcher is likely to become a customer, and your site has a realistic chance of ranking for them.

Start With Your Customers, Not a Tool

Before opening any keyword tool, write down what your customers actually say. A seller might say "IP camera", while a buyer searches for "camera for shop security" or "night vision camera price". Good sources of real customer language include the questions customers ask you in person, on the phone or on WhatsApp, comments on your Facebook page, and the search box on your own website, if your store records what visitors type.

Write down twenty or thirty of these phrases. These are your seed keywords — the starting point for everything that follows.

Expand Your List With Free Tools

You do not need a paid tool to start. Several free options give you plenty to work with.

Google's own suggestions

Type a seed keyword into Google and look at the autocomplete suggestions that appear as you type. Then scroll to the bottom of the results page and read the "People also ask" box and the "Related searches" list.

Google Search Console

If your site is already set up in Search Console, the Performance report shows the exact queries your pages already appear for, including ones you never targeted on purpose. These are often your quickest wins: a page already ranking on page two for a query can often reach page one with a little optimisation.

Free keyword tools

Tools like Google Keyword Planner, Ubersuggest and AnswerThePublic all offer free tiers. They show rough search volumes and extra ideas for each seed keyword.

Judge a Keyword by Intent, Not Just Volume

The most common beginner mistake is chasing the keyword with the biggest search volume. Volume tells you how many people search, but it tells you nothing about what they want. What matters more is intent — what the searcher is trying to do.

There are four main types of search intent:

• Informational: the person wants to learn something, for example "how to install a CCTV camera". Good for guides and blog posts.
• Commercial: the person is comparing options, for example "best portable monitor for gaming". Good for comparison and review content.
• Transactional: the person is ready to buy, for example "buy Imou camera Dhaka" or "portable monitor price in Bangladesh". These belong on product and category pages.
• Navigational: the person is looking for a specific brand or site, for example "synex bd". You cannot win someone else's brand name, so focus on your own.

Informational keywords are still worth targeting — they bring people in early and build trust — but a page that only attracts readers who never buy is not doing its job.

Check Whether You Can Realistically Rank

Before you commit to a keyword, search for it and look at the top ten results. Who is ranking? If the first page is full of large, established sites with hundreds of pages on the topic, a new or small site will struggle to displace them. If the results include forums, small blogs or thin pages that barely answer the question, you have a genuine opening.

Also look at what kind of content ranks. If Google shows product pages for your keyword, it wants product pages; if it shows blog guides, it wants a guide. Matching the format Google already prefers is half the battle.

Turn Keywords Into Pages

A common mistake is stuffing many keywords onto one page. The rule that works in practice is simple: one main keyword per page. That page should answer the searcher's question completely, use the keyword naturally in the title, the first paragraph and a heading or two, and cover the related questions people also ask.

Group your keyword list by topic. For example, all the keywords about CCTV installation belong on one guide; all the keywords about portable monitor prices belong on a category or product page. This grouping — often called a keyword map — stops your pages competing with each other and makes it clear what content you still need to write. For the on-page side of this work, see my on-page SEO checklist.

Keep Researching: It Is Never Finished

Search behaviour changes, new products appear, and competitors publish new pages. Revisit your keyword list every few months, check Search Console for new queries you are starting to appear for, and refresh your best pages with the terms that are actually bringing visitors. If you want a structured way to check how your site is performing before choosing new keywords, my technical SEO audit checklist for e-commerce websites is a useful starting point.

Frequently Asked Questions

How many keywords should a small website target?

Start with ten to twenty keywords that match pages you can realistically create or improve.

Do I need a paid keyword tool?

Not at the start. Google's autocomplete, People Also Ask and Search Console, plus a free keyword tool, are enough for a small site. Pay for a tool when the free ones stop answering your questions.

What is a long-tail keyword?

A longer, more specific search phrase, usually four or more words, such as "wireless CCTV camera with night vision for shop". Long-tail keywords have lower search volume but higher intent, and they are usually easier to rank for.

How long does it take for keyword targeting to work?

Expect weeks to a few months before a new or updated page settles into its ranking, depending on competition and how often Google crawls your site.

Start With the Words Your Customers Already Use

Start with the questions people already ask you, expand the list with free tools, judge each keyword by intent rather than volume, and give every keyword a page that deserves to rank. Do that consistently, and the traffic that arrives will be the kind that buys.