What Is SEO? A Plain-English Guide for Business Owners

How search engines work, in three steps

Google describes its search process in three stages. Other search engines work in broadly similar ways.

1. Crawling. Automated programs (crawlers) find pages and download their text, images and video. They discover pages mostly by following links and reading sitemaps.
2. Indexing. The search engine analyzes what each page is about and stores it in a huge database, the index. A page that isn't in the index can't appear in results.
3. Serving results. When someone searches, the engine picks the indexed pages it judges most relevant and useful for that query, and ranks them.

Two points from Google's own documentation are worth knowing early. Google says it doesn't accept payment to crawl a site more often or rank it higher. And it doesn't guarantee that it will crawl, index or show any page, even one that follows its guidelines.

Organic, paid and local results

• Organic results are the unpaid listings. This is what SEO usually refers to.
• Paid results are ads, labeled as sponsored. They're bought, not earned, and they stop when the spending stops.
• Local results (the map and business listings) come mainly from Google Business Profiles. Google says local ranking is based on relevance, distance and prominence, and that there's no way to pay for a better local ranking.

The main parts of SEO

Technical: can search engines get in and understand the site?

Pages must be crawlable (not blocked), indexable (not marked noindex), and reachable through links. Other basics: one clear URL per page (canonicals), a sitemap, working redirects when URLs change, sensible page speed, a site that works on phones, and HTTPS. Technical SEO rarely wins rankings on its own, but problems here can stop everything else from counting.

On-page and content: does each page clearly answer something people search for?

Each important page should match a real search intent: what someone wants when they type a given query. That means saying plainly what you do, for whom and where, in the words your buyers use. It also means clear titles and headings, and content that answers the questions that come before a purchase. Google says its ranking systems prioritize helpful, reliable content made for people, not content made to manipulate rankings. It also says there's no preferred word count.

Authority and reputation: does the rest of the web vouch for you?

Links from relevant, reputable sites, mentions in the press or industry publications, and genuine reviews all tell search engines that a business is real and respected. This part is earned slowly, and it can't be shortcut safely. Buying or selling links for ranking purposes is listed in Google's spam policies.

Local SEO, where it applies

If you serve customers in a specific area, your Google Business Profile, consistent business details across the web, and reviews matter a great deal for map results. If you serve customers nationally, local SEO matters less.

What SEO isn't

• Keywords meta tags. Google says it doesn't use the keywords meta tag.
• Keyword stuffing. Filling a page with keywords to manipulate rankings is named in Google's spam policies, and it makes pages worse for readers.
• Guaranteed rankings. Google's own advice on hiring an SEO says no one can guarantee a #1 ranking on Google, and warns against anyone who claims a special relationship with Google.
• A one-time project. Competitors, search behavior and the search engines themselves keep changing.

How to measure it

Rankings for a handful of phrases are a poor scorecard. They change by location and device, and they say nothing about whether visitors became customers. More useful measures:

• Google Search Console: which pages are indexed, which searches show your site (impressions), how often people click, and any technical problems Google found.
• Analytics (such as GA4): what visitors from search do on your site.
• Business outcomes: inquiries, calls and customers you can trace back to organic search.

Realistic timelines

In Google's words, "some changes might take effect in a few hours, others could take several months." Beyond that, how quickly SEO work pays off depends on where you start (a new site with no reputation takes longer), how competitive your searches are, and how much work goes in. Be skeptical of anyone who gives a confident date for a specific result.

Do you need to hire someone?

Not always. A small business with a well-built site can get the basics right on its own: a clear page for each service, accurate business details, a Search Console account and a Google Business Profile if it serves a local area. Outside help earns its place when the site has technical problems, when the market is competitive, or when nobody has time to keep the work going. Google publishes a list of questions to ask any SEO you're thinking of hiring. It's worth reading before you sign anything.

If your site isn't appearing at all, start with Why isn't my website showing up on Google? If you're wondering about AI assistants too, see Can ChatGPT find my business?

How MIE approaches SEO

MIE builds foundation SEO into every website it develops: canonical URLs, an XML sitemap, robots.txt, metadata, schema markup, search-friendly structure, and GA4 and Search Console set up from day one. Ongoing monthly SEO is a separate service for businesses that want to keep gaining ground. MIE doesn't promise rankings, traffic numbers or dates.