What It Is
Keyword research means studying how people search before you write. You list the services you offer, then find the phrases customers actually use, how often they are searched, how hard they are to rank for and what kind of answer people expect. Tools such as Google’s Keyword Planner, Google Search Console and paid SEO tools help, and so does looking at Google’s own suggestions and "People also ask" box as you type.
Why It Matters for Your Business
It keeps you from spending time on pages nobody looks for. A landscaping company may find steady searches for "paver patio installation" and "yard drainage solutions" in its area. Each of those deserves its own page. Research also shows which services have little online demand, so you can focus your budget where customers are already looking.
Good to Know
Tip: start with what you already know. Write down the questions customers ask on the phone and the exact words they use. Check those phrases in a keyword tool and in Search Console. For a local business, a modest search count with clear buying intent is usually worth more than a large one from casual browsers.