The Short Answer: Search engine optimization shapes how buyers find businesses online. SEO helps companies reach their target audience at the moment people search for information related to their products and services, which drives conversions and business growth. The three most important considerations when evaluating keywords for SEO are search volume, competition, and search intent.
Organic traffic is the group of visitors who reach a website through unpaid search results. It is the opposite of paid traffic, which is driven by Google Ads and other online advertisements. Organic traffic is generated when people enter a search query into a search engine like Google, Bing, or Yahoo, and the search engine displays your pages in its search results. This traffic is highly targeted because users are actively looking for solutions related to a particular keyword.
A keyword is a specific word or search phrase people use when looking for information, products, or services on a search engine. Keywords connect what users are searching with the content websites provide. A keyword can be one or two words, like "coworking" or "marketing agency," or a longer phrase, such as "coworking space near me" or "digital marketing strategies for small businesses."
In SEO, keywords help search engines understand the information, relevance, and intent of web pages. When someone enters a search term, the search engine scans its index of web pages to find the results most relevant to the given keyword.
Keywords are the foundation of SEO for a few reasons:
There are many types of keywords, but these are the most common in organic search.
Keyword research is a fundamental part of your SEO strategy because it shows what people search for when they look for your products and services. Those insights into your audience's specific needs shape search-friendly content.
A keyword research tool gathers data on search volume, competition, related keywords, and user intent. Google Keyword Planner is a free keyword research tool inside Google Ads that provides keyword suggestions, while Semrush and Moz Keyword Explorer add deeper competitive data. Our list of the best SEO tools can help you pick the right tool. Once you have your keyword ideas, weigh each one against these three considerations:
Search volume is the number of times a particular keyword is entered into a search engine over a set period, usually measured monthly. It shows the demand for a topic so you can direct your marketing efforts toward an audience actively looking for your products or services. Google Trends can also add context by showing how interest in a search term rises and falls over time.
Treat volume numbers as estimates. An Ahrefs study comparing Keyword Planner with Google Search Console data found that Keyword Planner overestimated search volume 54.28% of the time. Volume alone should not decide your keyword selection, so balance it with competition and search intent.
Keyword competition describes how hard it is to rank on page one for a particular keyword. Highly competitive keywords are often targeted by established websites with strong authority, which makes them difficult for newer sites with less authority to win. Low-competition keywords give you a chance to rank sooner.
You can assess competition in three ways:

Search intent, also called user intent, is the purpose behind a search query. Matching keywords to intent attracts qualified traffic, and the engagement and conversions that follow support your rankings. Use these approaches to identify intent:
Once you can read intent, group your keyword ideas by the goal behind each one. Pages built for the wrong intent rarely rank, since a how-to guide will not satisfy someone who is ready to buy.
Most searches fall into three types of intent:

Knowing what keywords a site uses helps you judge competition and find openings for your own pages.
Site owners and content creators can follow these steps:
These best practices help you balance search volume, competition, and intent. Few keywords score well on all three at once, so the real work is picking the trade-offs you can live with.
The practices below will help you shape a list your site can realistically rank for:
Keyword research comes down to three questions. Search volume shows how much demand a term has, competition shows what it will take to reach page one, and search intent shows what the page has to deliver once someone clicks. Checking what keywords a site already uses fills in the competitive picture, and the selection tips above turn a long list of keyword ideas into a focused plan. Run every term you are considering through all three and your content will hold steadier positions in search results over time.
20North is a full-service digital marketing agency in Atlanta. Our SEO team handles keyword research, on-page optimization, and content creation. Our services also cover paid advertising, email marketing, and web development.
Start with an SEO audit or contact 20North to build a keyword strategy that grows your business.