What Is SEO? How Search Rankings Actually Work

Somebody tells you your business needs SEO. Nobody explains what it is, and the explanations you find are either three words long or forty pages.

It is simpler than the industry makes it sound, and Google documents most of it publicly.

What is SEO, answered honestly, takes two sentences. The rest of this guide is about what follows from them.

This guide covers what SEO actually is, how search works in Google's own description, the three parts of the job, how long it takes, and what nobody can promise you.

Key Takeaways

• SEO is being found in the unpaid results. Everything else is detail underneath that.
• Google describes three stages. Crawling, indexing and serving, and a page must clear all three.
• Nothing is guaranteed. Google states it does not guarantee that it will crawl, index or serve your page.
• Timing varies widely. Google says some changes might take effect in a few hours and others could take several months.
• There are no secrets. Google's own guide says there are no secrets that will automatically rank your site first.

What Is SEO, in Plain Words

Search engine optimization is the work of making a site that search engines can read, about things people are actually searching for.

Both halves of that sentence are load bearing. A beautiful site about nothing anybody searches for is as invisible as a useful one Google cannot open.

The results it targets are the unpaid ones. You are not buying placement, you are earning it. That is why the effect persists when you stop and advertising does not.

The trade is time. Nobody can switch SEO on for a fortnight the way they can switch on a campaign, which makes it a poor rescue and a good investment.

That is the whole of what does SEO mean. The complexity people associate with it lives in the execution rather than the idea.

It also explains why the field attracts so much nonsense. The idea is simple enough that anybody can claim to do it, and the results are slow enough that nobody can quickly tell they are not.

How Search Actually Works

Google publishes this in three stages, and understanding them removes most of the mystery. Anyone selling you a theory about how SEO works is competing with a free page Google wrote.

Crawling is where Google downloads text, images and videos from pages it found on the internet with automated programs called crawlers.

Discovery comes first. Google has to know the address exists, usually by following a link to it or reading it in a sitemap.

A page nothing links to, on a site with no sitemap, can sit unvisited indefinitely. That is not a ranking problem and no amount of writing fixes it.

Indexing is where Google analyses the text, images and video files on the page and stores the information in the Google index.

Serving is where, when a user searches, Google returns information that is relevant to the user's query.

A page has to pass all three. That is why how SEO works is less about persuasion and more about not failing at one of those stages.

Most problems people bring to an agency are a failure at stage one or two, described as a stage three problem. The page is not outranked, it was never indexed.

And none of it is promised. Google states that it does not guarantee it will crawl, index or serve your page, and that indexing is not guaranteed because not every page Google processes will be indexed.

What Is SEO Made Of, in Three Parts

Most of the field divides into three, and every task belongs to one of them. Knowing which part a job belongs to tells you roughly how long it will take to show.

1. Making the site readable

This is the technical half. Pages that load, links a crawler can follow, no accidental instruction to stay away.

It is the least glamorous part and the one that stops everything else working when it is wrong.

It is also usually finished rather than ongoing. A site built properly needs this checked occasionally rather than worked on monthly.

Which is worth knowing when buying. A monthly fee that is mostly technical work on a small, stable site is a fee for very little.

2. Answering the question people typed

A page about a thing people search for, answering it properly, in words those people would use.

This is the part most people mean when they ask what is SEO, and it is the part that needs you rather than a specialist. Nobody knows your customers' questions better.

This is where most small business sites lose, and it has nothing to do with technique. The page simply does not exist, or it is about the company rather than the question.

Write down the five things customers ask on the phone. If your site does not answer each of them on its own page, that is the work, and no amount of technical tuning replaces it.

3. Being known well enough to be chosen

Other sites referring to you, people searching for you by name, a local presence that is consistent and real.

For a local business this builds mostly offline. Doing good work, being listed where customers already look, and being the name people repeat.

It is the slowest of the three and the hardest to shortcut. That is exactly why the shortcuts sold for it carry the most risk.

Types of SEO Worth Knowing

Most small businesses need the first three and can leave the fourth to take care of itself for a long while.

Those are the types of SEO worth knowing by name. Anything else you are offered is usually one of these four described differently.

How Long SEO Takes

Google's own answer is the honest one. Some changes might take effect in a few hours, others could take several months.

That range is wide because the work is not one thing. Fixing a blocked page can show within days, while earning a reputation for a competitive term can take a year.

Its starter guide advises waiting a few weeks before judging whether a change helped. That is a useful discipline, because the alternative is changing things weekly and learning nothing.

Set a date to look rather than looking daily. Three months is a fair first review for a small site that was starting from very little.

Compare that with advertising, which starts and stops the same day. The two are different instruments, and the comparison is the point rather than a complaint.

What is SEO good at, then. Being there when somebody searches next year without you paying for that moment.

SEO Compared With Advertising

• Speed. Ads produce traffic today. Search engine optimization produces it later and keeps producing it.
• Cost shape. Ads are rent. SEO is closer to building something you keep.
• Control. Ads let you choose exactly who sees you. SEO does not.
• Certainty. Ads are predictable. Google states plainly that nothing in search is guaranteed.
• Best use. Ads while the slower work matures, rather than one instead of the other.
• Measurement. Both are countable, and both should be judged on enquiries rather than on traffic or impressions.

Common SEO Mistakes, and the Claims to Refuse

• A guaranteed number one. Google says there are no secrets that automatically rank a site first.
• Submitting to hundreds of directories. An old tactic that produces listings nobody reads.
• Publishing thin pages in bulk. Volume without usefulness is the behaviour Google's spam policies name.
• Judging a change after two days. Google's own guide suggests waiting a few weeks.
• Buying links. The one shortcut with a documented downside rather than a theoretical one.
• Treating what is SEO as a one off purchase. The technical half finishes, the writing and the reputation do not.
• Ignoring the technical half. A page Google cannot crawl cannot be served, whatever is written on it.
• Buying a package without asking what does SEO mean here. Ask which of the three parts the fee covers, and what you will see each month.

FAQs

What does SEO stand for?

Search engine optimization. In practice it means making a site that search engines can read and that answers what people are actually searching for. The unpaid results are the target, which is why it is sometimes called organic search rather than advertising.

How does Google decide what to show?

Google describes three stages. Crawling downloads text, images and videos from pages it has found, indexing analyses those files and stores the information in Google's index, and serving returns information relevant to a user's query. A page has to clear all three.

Can anyone guarantee a number one ranking?

No, and Google says so itself. Its documentation states there are no secrets that will automatically rank your site first, and that Google does not guarantee it will crawl, index or serve any page. Anyone promising a position is promising something they do not control.

How long does SEO take to work?

Google's own answer is unhelpfully honest. Some changes might take effect in a few hours and others could take several months, and its starter guide advises waiting a few weeks before judging whether a change helped. Treat anything faster as a claim rather than a plan.

Do I need to hire an SEO professional?

Not necessarily. Google frames it as optional, suggesting you might consider hiring a professional if you are short on time. The basics are documented and free to read. Hire somebody when the work exceeds your time rather than your understanding.

Conclusion

So what is SEO. It is making a site Google can read, about things people search for, from a business people have heard of.

Three sentences, and all three have to be true at once before anything happens.

Start with the first, because nothing else works without it. Then write the pages your customers' questions deserve and give it a few months.

The work compounds quietly and then suddenly. Patience is the main requirement.

Judge it on enquiries rather than positions. Search engine optimization that lifts rankings and produces no calls has optimised the wrong thing.

If you would rather have that work done alongside the site itself, see how we approach SEO.