What is SEO?
October 15, 20264 min read
SEO is the work of helping search engines find, understand and show your pages to the right people. A plain explanation of what it covers and where to start.
Quick answer
SEO, short for search engine optimization, is the work of making your website easier for search engines like Google to find, understand and show to people who are looking for what you offer. It doesn't buy placement. It improves the odds that your pages are the ones shown when someone searches.
What SEO is not
It helps to clear up two misunderstandings first.
SEO is not advertising. The sponsored results at the top of a Google page are paid ads, bought through Google Ads. The results underneath, often called organic results, can't be bought. Google says plainly that it doesn't accept payment to crawl a site more often or to rank it higher.
SEO is also not a trick. Years ago, people tried to game search engines by repeating keywords or buying links in bulk. Google's own guidance now treats those tactics as spam, and they tend to backfire. Most SEO work today is removing obstacles that stop search engines reading a site, and making pages that answer what people actually search for.
The three jobs inside SEO
When people talk about SEO, they're usually talking about one of three areas.
1. Making sure search engines can reach your pages
Before Google can show a page, it has to find it and read it. Google describes this as a sequence: its crawlers discover pages, mostly by following links; it indexes them, which means analysing the content and storing it; and then it serves them in results when they match a search.
A page can fall out at any step. A setting in the site's code might tell search engines to stay away. A new page might have no links pointing to it, so nothing leads the crawler there. A page might load so slowly, or rely so heavily on scripts, that its content is hard to read. This side of the work is usually called technical SEO.
2. Making each page clearly about something
Once Google can read a page, it has to work out what the page is for. This is where the words on the page matter: the title, the headings, the main text, and the descriptions of images.
A good page answers a specific question or serves a specific need, in language the searcher would actually use. If a bakery's page about wedding cakes says "Bespoke celebration confections" and never mentions weddings or cakes, it's harder for both people and search engines to connect it to someone searching for "wedding cake bakery near me." This is often called on-page SEO, and it overlaps heavily with simply writing clearly.
3. Earning signals from outside your site
Search engines also look at how the rest of the web refers to you. Links from other relevant sites are one signal; Google's original ranking idea, PageRank, was built on links, though Google now says it is just one of many signals. For a local business, consistent details in places like a Google Business Profile matter too.
You can't fully control this part. You can make it more likely by having something worth referencing, such as a genuinely useful guide, a local sponsorship, or a product people talk about.
A small example
Picture a bakery in a mid-sized town. It has a website with a homepage, a menu, and an "About us" page. Very few people find it through Google.
A sensible first pass at SEO might look like this:
- Check that Google has indexed the site at all, using the free Google Search Console.
- Give the homepage a title that says what and where, like "Sourdough bakery in Guelph | Harvest Loaf," instead of just "Home."
- Add a separate page for custom cakes, since that's what people actually search for and what earns the most per order.
- Add the bakery's address and opening hours in text form, not only inside an image.
- Fill in its Google Business Profile with the same name, address and hours.
None of these steps is clever. Each one removes a reason for Google to overlook the bakery, or gives a searcher a clearer reason to click.
Why it takes patience
Changes don't show up in search results immediately. Google's SEO Starter Guide says some changes take effect in a few hours and others can take several months, and suggests waiting a few weeks before judging whether a change helped. It also notes that not every change will make a noticeable difference.
So SEO suits steady, sensible work better than one big push.
Where to start
If you're new to this, start with the basics Google publishes for site owners: its Search Essentials, which cover the minimum a site needs to be eligible to appear, and its SEO Starter Guide, which explains the most common improvements in plain language. Then look at your own site with a fresh eye: can a stranger tell within a few seconds what you offer and where?
An automated check can catch technical problems that are easy to miss by eye, such as missing titles, broken links or slow pages. A free SEO4i scan checks one page for these and lists what it finds.