What Is SEO? Definition and How It Works
SEO covers the practices that make your site more visible in search results, without paying for ads.
· 1 min read
SEO (Search Engine Optimization) is the set of actions that help a website appear higher in the unpaid results of search engines, especially Google.
How does a search engine work?
A search engine goes through three main steps:
- Crawling: bots travel the web by following links to discover pages.
- Indexing: the content of discovered pages is analyzed and stored in a huge index.
- Ranking: when someone searches, the engine picks the most relevant pages from its index and orders them.
SEO is about making each of these steps easier and showing that your page is the best answer to the question being asked.
The three pillars of SEO
- Technical SEO: a fast site that robots can access, that works on mobile and is secured with HTTPS.
- Content: pages that precisely answer the search intent of users, with well-chosen keywords.
- Authority (link building): links from other websites to yours, which act as a trust signal.
Why does SEO matter?
Users mostly click on the first results. Good rankings therefore bring steady, qualified traffic (people actively looking for your topic) that lasts, unlike advertising, which stops as soon as the budget does.
How long does it take to see results?
SEO is a medium-term effort. Depending on competition, the age of your site and the resources invested, it often takes several months to see significant progress. Nobody can honestly guarantee a specific position on Google.
Where should you start?
- Check that your site is indexed (with Google Search Console).
- Identify the keywords your customers search for.
- Write useful content with a clear title tag for every page.
- Improve speed and mobile display.
- Gradually earn links from quality websites.
In short, SEO is not a trick but an ongoing approach: offer the best experience and the best answer possible, so that search engines can find and understand it.