SEO Explained in Plain English: How Google Actually Decides Who Ranks

The big idea — start here

Google is not really a search engine. It's an advertising business.

Google makes money by showing ads. But people only click those ads if they trust Google's search results. So Google's entire job is to show people the most satisfying answer possible — because if users are happy, they keep using Google, and Google keeps making money.

Everything Google does — every algorithm, every update — comes down to one question:

"If we show this page to this user, will they leave happy, or will they come back and try again?"

That's it. That's SEO in a nutshell. Your job is to be the page that makes people happy.

The three things Google needs from you

Think of it like a checklist. Google needs all three. Miss one, and you won't rank — no matter how good the other two are.

1. Technical SEO — "Can Google even find you?"

This is the foundation. Before Google can rank you, it has to be able to find you, read you, and store you in its index.

Analogy: Imagine you wrote the best book in the world, but it's sitting in a locked room with no address. No one can ever discover it. That's what a technically broken website is like.

What this means in practice:

• Your website loads fast and works on mobile

• Google can crawl through your pages without hitting dead ends

• Your pages are properly listed so Google knows they exist

• You're not accidentally blocking Google from reading your content

2. On-page SEO — "Does your content actually answer the question?"

Once Google finds you, it reads your content and asks: "Does this page genuinely answer what the user is searching for?"

Analogy: Imagine someone asks you "how do I fix a leaky tap?" and you hand them a 10-page essay about the history of plumbing. Technically related — but not what they wanted. Google is smart enough to know the difference now.

What this means in practice:

• Your page needs to actually cover the topic thoroughly

• The words you use, your headings, and your structure all need to make sense

• You need to include related ideas and concepts — not just repeat the same keyword over and over

• Each section of your page should be able to stand on its own and answer a mini-question

3. Off-page SEO — "Do other people vouch for you?"

This is about trust and reputation. Google looks at what the rest of the internet thinks of you.

Analogy: If you're new to a city and want a restaurant recommendation, would you trust a random flyer on a lamppost, or a recommendation from a respected local food critic? Google thinks the same way about links.

What this means in practice:

• Other reputable websites linking to you = votes of confidence

• Not all links are equal — a link from the BBC is worth far more than a link from a random blog

• Google also looks at how you're linked to — a clickable, prominent link is worth more than a footnote

• Even the words used in the link to your site matter

How Google actually scores your page

Our research reverse-engineered Google's scoring system from its own patents. Here's what it boils down to in plain English:

Signal	What it means in plain English
Relevance	Does your page actually match what the user searched for?
Site Quality Score	Is your overall website trustworthy? (This affects every page on your site)
Originality	Does your content say something new, or is it just copying what everyone else says?
Link Quality	Who links to you, and how prominently?
User Behaviour	When people visit you from Google, do they stay and read — or immediately leave?
History & Trust	How long has your site been around and consistently good?
Page Structure	Are individual sections of your page well-organised and informative?
Technical Health	Does your page load fast and work properly?

The most important thing to understand: the Site Quality Score is a multiplier. It doesn't just affect one page — it scales up or down every page on your website. A great new article on a trusted, established site will outrank the same article on a brand-new site almost every time. This is why building a reputable site over time matters so much.

The pogo-stick problem

One of the most important things Google measures is something called the pogo-stick.

When someone searches, clicks your result, and then immediately hits the back button to try a different result — that's a pogo-stick. Google records this and interprets it as: "This page didn't satisfy the user."

The reverse is also true. When someone clicks your result, spends a lot of time on your page, and doesn't come back to search again — Google interprets that as a win.

Your goal isn't just to rank. It's to make sure that when people land on your page, they actually get what they came for. Fast, clear, genuinely useful content keeps people on the page. Slow-loading, hard-to-read, or misleading content sends them straight back.

The originality rule — and why copying doesn't work

Google has a system — confirmed in its own patents — that scores every piece of content on how original it is compared to everything else on the internet.

Analogy: Imagine a class where every student hands in an essay. The teacher can instantly see if ten students all wrote essentially the same thing. The student who actually did their own research gets the top mark. Google does this at internet scale.

Content that scores low on originality:

• Summarising the top 10 Google results and putting it in your own words

• Writing "better" versions of already-published guides without adding anything new

• Using AI to combine existing information without adding real expertise

Content that scores high on originality:

• Original research or data you collected yourself

• Expert opinions or interviews you conducted

• First-hand experience and insights that can't be found elsewhere

• Unique analysis or a genuinely new perspective

The new website problem — why new sites struggle

If you've just launched a website and you're frustrated that it's not ranking yet — there's a reason, and it's documented in Google's own patents.

Google has a trust accumulation system. It takes time for a new website to build credibility. Think of it like being new to a job — even if you're highly competent, people don't fully trust your work until they've seen your track record. Google is the same. It wants to see:

• How long you've been around

• Whether the links pointing to you have grown naturally over time

• Whether your content has remained relevant and been updated

• Whether real people are visiting and engaging with your site

This is sometimes called the "Sandbox" — the period where new sites struggle to rank even for good content. It's not forever, but it's real.

How Google understands language now

Google used to match keywords. If you searched "best running shoes" it looked for pages that contained those exact words. That changed completely. Google now understands meaning, not just words.

Analogy: If you ask a knowledgeable friend "what's a good shoe for jogging?" — they don't freeze up because you didn't say "running". They understand what you mean. Google now works the same way.

This matters because:

• Stuffing keywords into your page no longer works and can actually hurt you

• Google looks at the whole topic — are all the related ideas covered? Are the right concepts present?

• Writing naturally and comprehensively about a topic is now genuinely the best strategy

The user behaviour signal — confirmed in court

In 2023, Google was taken to court by the US Department of Justice over antitrust concerns. During this trial, Google's own executives testified under oath about how their algorithm works.

One of the most important confirmations: Google heavily uses click and behaviour data to rank results.

This system — called Navboost internally — tracks which search results people actually click on, how long they stay, and whether they come back. Pages that consistently get clicked and keep users engaged get promoted. Pages that get skipped or bounced from get demoted.

What this means for you:

• Your title and description in search results need to be compelling enough to get clicked

• Once people arrive, your page needs to deliver on that promise

• Real traffic from real, engaged users is a ranking signal in itself

Common myths this research debunks

What people think	What the research shows
"More keywords = better ranking"	Google understands meaning. Keyword stuffing hurts you.
"Getting lots of links is enough"	Link quality matters far more than quantity. One great link beats 100 bad ones.
"I just need to publish more content"	Low-quality content on your domain drags down all your pages. Quality beats quantity.
"My great new article will rank quickly"	New sites need time to build trust. Patience is part of the strategy.
"PageRank is about counting links equally"	Since 2010, Google weights links by how likely a real person is to click them.
"SEO is about tricking Google"	Google's goal perfectly aligns with yours: satisfy the user.

Quick reference: words you'll hear and what they mean

Jargon	Plain English
SEO	Making your website show up higher in Google
Algorithm	The rules Google uses to decide who ranks where
Crawling	Google's robots visiting and reading your website
Indexing	Google storing your page so it can appear in search results
Backlinks	Other websites linking to yours
PageRank	Google's score for how trustworthy/authoritative a page is
BERT / MUM	Google's AI systems that understand language meaning
Navboost	Google's system for using real user clicks to influence rankings
Information Gain Score	How original your content is vs. everything else on the internet
Passage Indexing	Google ranking individual sections of your page, not just the whole page
Core Web Vitals	Speed and usability scores Google uses as a ranking factor
EEAT	Experience, Expertise, Authoritativeness, Trustworthiness — Google's content quality framework
Topical Authority	Being a trusted, comprehensive source on a specific subject area
Sandbox	The period where new websites struggle to rank while building trust

Based on "The Science of Google Search: A Complete SEO Dissertation" and "The Complete SEO System" — both grounded in 9 verified Google patents and 2023 DOJ antitrust trial testimony.