What is SEO? A simple guide to the basics
SEO explained without the jargon, for anyone who hears the term everywhere without really knowing what it covers — or why it should matter to you.
SEO stands for "Search Engine Optimization" — the set of actions taken to help a website rank higher in Google's results, without paying for advertising. If you search "plumber Laval" and a business shows up in the top results without an "Ad" label, SEO is what put it there.
It's a term you hear everywhere, often wrapped in mystery or overblown promises. In reality, the core principles are fairly simple to grasp — it's the execution that takes real work.
How Google decides who ranks first
Google wants to give the best possible answer to every search. To do that, its algorithm weighs hundreds of signals, which roughly group into three families: does your page truly answer the question being asked (content relevance), is your site trustworthy and credible (authority), and is the experience on your site good (technical — speed, mobile, security). A site that excels at all three outranks one that only checks a single box.
The three pillars of SEO
Technical SEO
This is the invisible foundation: page load speed, code structure, how the site displays on mobile, a valid security certificate (https), and how easily Google can crawl and understand your pages. A beautiful site with shaky technical foundations can stay invisible no matter how good its content is.
Content
This is what visitors — and Google — come looking for. Effective SEO content answers a question real people are actually asking, using the words they'd naturally use to search for that answer. It's not about "stuffing" text with keywords — that technique has been outdated for years and can even hurt your rankings.
Authority
This is your site's reputation in the eyes of the web at large, measured largely by the links other sites make to yours (the famous backlinks) and by signals like customer reviews for local businesses. A site nobody links to inspires less trust than one that's cited and recommended elsewhere.
SEO ≠ magic, SEO = compounding work
Unlike a Google Ads campaign that stops the moment you stop paying, SEO work compounds over time. A well-optimized page keeps generating traffic for months, sometimes years after it's published — that's what makes SEO especially cost-effective long-term.
SEO isn't the same thing as advertising
A common confusion: assuming that paying Google automatically boosts your SEO. It doesn't. Paid ads (SEA, or Search Engine Advertising) show up at the top of results with an "Ad" label and disappear the moment you stop paying. SEO targets the "organic" or "natural" results — the ones without an ad label — and takes time, but keeps paying off with no cost per click once it's in place.
Why SEO should matter to you
- Most clicks go to organic results, not ads
- A strong ranking builds credibility — people trust an organic result more than an ad
- Unlike ads, the effect of SEO persists even when you scale back effort, at least for a while
- It's often the most cost-effective channel long-term for a local business
Where to start, concretely
If you're starting from zero, the logical order is generally: first make sure the site works well technically (speed, mobile, security), then optimize your Google Business Profile if you have a local customer base, then build content that answers your customers' real questions. Jumping straight to content without solid technical foundations is a bit like decorating a house with shifting foundations.
Frequently asked questions
No, SEO is one component of digital marketing, alongside social media, email marketing or paid advertising. It specifically focuses on visibility in organic search results.
Yes, to some extent — fixing the basics and publishing good content is accessible to anyone willing to learn. What usually calls for professional support is the overall strategy, competitive analysis and ongoing tracking.
For almost all of them, but the size of the opportunity varies. A business in an industry where people actively search on Google (local services, specialized products) benefits enormously. A business whose customers never search online for that type of service will get less direct benefit from it.