What Is SEO?

by | Oct 22, 2026 | SEO Basics

If you own a business, someone has probably tried to sell you SEO. Maybe it was an agency that called out of nowhere, or a web designer who told you your new site would come “SEO ready.” Either way, there’s a decent chance nobody ever explained what you’d actually be paying for.

I’ve been doing SEO for about eight years, first at a large agency and now at Bright Noise, and I still think it gets explained badly most of the time. So here’s my plain-English version for business owners who want to understand how it works before they spend money on it.

The short answer

SEO stands for search engine optimization. It’s the work of making your website easier for search engines to understand, so it shows up when people search for the things you sell or do.

The important part of that sentence is the people. Rankings are nice, but the point of SEO is getting your business in front of someone who’s already looking for it. A plumber doesn’t need to rank for the history of plumbing. They need to show up when someone in their town searches for an emergency plumber at 11pm with water all over the kitchen floor.

Unlike ads, you don’t pay for every click. That doesn’t make SEO free, since it takes time and work, but the traffic you earn keeps coming in without a meter running.

How Google decides what to show

Google sends out automated programs, usually called crawlers, that follow links around the web and read pages. The pages it can read and thinks are worth keeping get stored in its index, which is basically a giant library. When someone searches, Google pulls from that library and ranks the results based on what it thinks will best answer the question.

Google doesn’t publish the full list of what it looks at, and it changes things constantly. In practice, though, most of it comes down to whether Google can read your pages, whether a page actually answers what someone searched for, and whether the rest of the internet treats your business as legitimate. Pretty much everything an SEO does is aimed at one of those.

The main parts of SEO

Technical SEO

This is the stuff under the hood. Can Google crawl your site? Are important pages accidentally blocked from search? Does the site load reasonably fast on a phone? Is your most important service page buried five clicks deep where nobody, including Google, is going to find it?

Technical problems almost never show up when you look at your own website, which is why they can sit there for years. I’ve seen sites lose a big chunk of their traffic after a redesign because nobody redirected the old page URLs to the new ones.

Content

Content is how you tell Google, and your customers, what you actually do. Every service you offer and every question your customers ask is a chance to have a page that answers it well.

Good SEO content starts with figuring out what people really search for, then writing pages that answer those searches better than whatever is ranking now. Stuffing keywords into paragraphs stopped working a long time ago. So did reusing the same templated pages across dozens of businesses, although plenty of agencies still do it. Getting away from that is a big part of why I built my SEO services around each client’s actual business.

Local SEO

If you have a physical location or serve a specific area, this is probably where your quickest wins are. A big part of it is your Google Business Profile, the listing that shows up in the map results with your hours, photos, and reviews.

Keeping that profile complete, getting reviews from real customers, posting updates, and making sure your business name, address, and phone number match everywhere they appear online all help you show up when someone nearby searches for what you do.

Authority and links

Google pays attention to what other websites say about you. Links from other sites are still one of the strongest signals it uses, especially when they come from sites relevant to your industry or your community.

A link from your local chamber of commerce or a respected trade publication is worth far more than a hundred links from random directories. If someone offers to sell you links in bulk, that’s a good way to waste money or get your site penalized.

Where AI search fits

Search doesn’t only happen in the list of blue links anymore. Google’s AI Overviews now show up at the top of a lot of results, and plenty of people ask ChatGPT, Gemini, or Perplexity for recommendations instead of searching at all.

Some agencies are selling “AI SEO” as a brand-new service. I don’t really see it that way, which is why AI search is simply part of the SEO work I do for clients instead of a separate package. These tools lean on the same kinds of sources Google rewards: sites that are easy to read, content that clearly answers questions, and businesses with a solid reputation around the web. Good SEO covers most of what gets you mentioned there too.

It is changing what success looks like, though, and it’s worth measuring. I’ll come back to that further down.

What SEO can’t do

SEO is slow. For most businesses it takes a few months to see real movement, and longer in competitive industries. Anyone who guarantees you a #1 ranking is either stretching the truth or doesn’t understand how this works, because nobody outside Google controls Google’s results.

SEO also can’t fix a website that doesn’t do its job. If your site makes it hard to figure out what you do or how to contact you, more traffic just means more people leaving. Sometimes the most valuable thing I can recommend is improving the pages people are already landing on.

How to tell if it’s working

Rankings and traffic are the easiest numbers to report, and they do matter, but what you really want to know is whether search is bringing in customers. That means tracking the calls, form submissions, booked appointments, or online sales that came from organic search.

Google Analytics 4 and Google Search Console can show you a lot of this when they’re set up properly. A surprising number of the businesses I talk to don’t have them set up properly. When I put together my AI Overviews case study, the whole point was tying search visibility to actual ecommerce sales. If your SEO reports are full of rankings but never mention leads or revenue, it’s worth asking why.

Want a second opinion on your site?

If you made it this far, you probably have a website and a few questions about why it is or isn’t showing up in search. I’m happy to take a look. Tell me what’s going on with your site and I’ll get back to you myself.