What Is SEO (Search Engine Optimization)?

Most content about SEO recycles the same vague definitions from one blog to the next. Instead, we went straight to Google's own official SEO Starter Guide — and found both a clear definition and a list of long-repeated myths that Google rejects in its own words.

Google's own definition of SEO

Per Google's guide, SEO is about helping search engines understand your content and deciding whether users will find your site through a search engine. In other words, SEO isn't one technical trick — it's a set of practices that make your site understandable to both machines and people.

SEO is not a ranking guarantee

The same guide says this plainly: there are no secrets that'll automatically rank your site first on Google, and there's no guarantee any particular site will be added to Google's index. That also explains why the "guaranteed #1 ranking in 3 months" pitches you see in the market aren't realistic — Google itself says that kind of guarantee isn't possible.

The common myths Google says not to focus on

The most useful part of the guide is where it directly rejects a few myths still repeated across a lot of SEO content:

• The meta keywords tag: Google explicitly says this tag no longer matters — it hasn't been used in ranking for years.
• Keyword stuffing: Cramming a keyword into text doesn't work, per the guide — if anything, it can hurt readability and backfire.
• Is E-E-A-T a ranking factor? Google's own answer is direct: "No, it's not." E-E-A-T is a quality framework, not a signal that's directly measured and scored.
• Technical details like heading order or subdomain vs. subdirectory choice: The guide notes these matter less than commonly assumed.

What does SEO work actually cover?

Per Google's own guide, SEO work falls into five areas: helping Google find your site (indexing status, sitemaps, links from other sites); organizing your site (descriptive URLs, reducing duplicate content); making content useful (readable, original, up-to-date content); improving how your site appears in results (title links and snippets); and promoting your site (social media, community engagement, word of mouth). These five areas also make a good checklist for understanding why your site isn't showing up on Google.

Conclusion

Per Google's own definition, SEO is the work of making your site understandable to both search engines and users — not a magic ranking trick. Myths like the meta keywords tag, keyword stuffing, or E-E-A-T being a direct ranking factor are explicitly rejected in Google's own guide. For SEO's counterpart in AI search tools, see our What Is GEO? guide. If you'd like us to assess your site's SEO standing together, take a look at our SEO + GEO Strategy service or book a call.