What Is SEO? A Plain-English Guide for NZ Businesses

You’ve heard you need SEO.

Maybe your web person said it. Maybe a competitor keeps turning up above you on Google. Maybe you typed a question into ChatGPT and it mentioned “search engine optimisation” like you were supposed to already know.

But what actually is it?

This guide answers that properly: what SEO is, why it matters, how it works, the main types, what it looks like when it’s actually working, and where the whole thing is heading now that AI answers half the questions people used to Google.

And I’ll explain it the way I’d explain it to a mate over coffee — no jargon soup.

For context on where I’m coming from: I’ve been doing SEO for over a decade, most of it competing in the United States (a much bloodier market than NZ). 

Harvard’s digital marketing department interviewed me on how businesses are folding AI into their SEO. 

I’ve consulted for a brand you’d have seen on Shark Tank, in Oprah Magazine, and on the History Channel. 

And I’ve grown my own sites from nothing — one from zero to over 20,000 organic visitors a month, and my own SEO company (barely a year old) that’s already being cited by Google’s own AI.

So this isn’t theory. It’s what I actually do.

What is SEO?

SEO stands for search engine optimisation. It’s the practice of improving your website so it shows up when people search for what you offer — earning free, organic traffic instead of paying for ads.

That’s the whole thing in one sentence. Everything below is just detail.

Let’s break the name down.

“Search engine” is Google (and a bit of Bing, and increasingly AI tools like ChatGPT). “Optimisation” means shaping your website so those engines understand it, trust it, and show it to the right people.

Here’s the part that matters: those clicks are free.

There are two ways to show up on Google. You can pay for ads — the results marked “Sponsored” at the top — and the moment you stop paying, you vanish. 

Or you can earn your spot in the organic results underneath, which don’t cost you a cent per click. SEO is how you win the second kind.

Picture someone in Wellington whose hot water’s just died. They grab their phone and type plumber Wellington. 

A list comes back. SEO is the reason one plumber is getting found in Wellington at the top of that list — getting the call — and another sits on page two, getting nothing.

You want to be the one getting the call.

Why is SEO important?

SEO matters because the people searching are already looking to buy or hire — and if you’re not showing up, a competitor is.

Think about the difference between a search and an ad.

An ad interrupts someone scrolling Instagram who wasn’t thinking about you. A search is someone actively looking for what you sell, right now, wallet half-open. That’s the warmest traffic there is — and search is where it lives.

Miss it and you’re invisible to exactly the people most likely to become customers.

And “invisible” isn’t an exaggeration. Ahrefs studied around 14 billion web pages and found that 96.55% of them get zero traffic from Google — none.

Most websites simply don’t exist as far as search is concerned. SEO is how you climb into the tiny slice that does.

There’s a second reason, and it’s the one I care about most: SEO compounds.

Ads are a tap — water runs while you pay, and stops when you don’t. SEO is a pipe you lay once. 

A page you rank today can keep pulling in customers for years without you touching it again. It’s slow to build and then it snowballs, which is the opposite of how most marketing feels.

In New Zealand there’s a local twist on all of this. Our market is small, so a lot of searches are people hunting for something near them — a dentist in Auckland, a plumber in Hamilton, a tour operator hoping to get found in Queenstown. 

Ranking for those local searches is often the whole game for a small business, and it’s very winnable even against bigger names.

How does SEO work?

Search engines run on three steps — crawl, index, rank — and SEO is making your site easy to crawl, worth indexing, and strong enough to rank.

Let me walk you through how search engines actually work, start to finish.

First, crawling. Google sends out automated bots (think tiny librarians) that follow links around the web, page to page, reading everything they find. 

If nothing links to your page and you’ve never told Google it exists, the bots may never reach it — and a page Google hasn’t seen can’t rank at all.

Second, indexing. Once a bot reads your page, Google files what it’s about into a giant database called the index. 

And “giant” is underselling it: Google’s index covers hundreds of billions of web pages and is well over 100 million gigabytes — more information, in their words, than all the libraries in the world.

Third, ranking. When someone searches, Google sorts through that index in a fraction of a second and orders the results by which pages best answer the query.

Two big things decide that order: relevance and authority.

Relevance is does this page actually answer what I asked? That’s mostly your content — the words on the page matching the intent behind the search.

Authority is can this page be trusted? That’s mostly earned from other websites vouching for you (more on that in a second).

Take a builder trying to rank in Christchurch for renovation builder Christchurch: the job is simple to say and hard to do. 

Have a page that clearly answers that search (relevance), on a site Google trusts (authority). Do both better than the builders currently ranking, and you climb.

What are the main types of SEO?

People often ask about the four types of SEO. Here they are — on-page, off-page, technical, and local — with a plain example of each.

On-page SEO is everything on the page itself — the content, the headings, the keywords, how well it answers the question. 

If a Tauranga physio writes a genuinely useful page on knee pain after running, that’s on-page SEO working, and it’s exactly how Tauranga SEO gets won. It’s the part you control most directly, and it’s where most beginners should start.

Off-page SEO is your reputation — mostly backlinks, which are links from other websites pointing to yours. 

Treat each link like a vote of trust: the more good sites vouch for you, the more Google believes you. And the data backs this hard. 

Backlinko analysed 11.8 million search results and found the #1 result has 3.8x more backlinks than positions two through ten, with the number of linking domains being the single strongest factor in the whole study.

Technical SEO is the plumbing — is your site fast, does it work on mobile, can the bots crawl it without hitting walls? 

It’s like checking under the bonnet: the car might still run with problems down there, just badly. Get it wrong and the best content in the world can’t rank, because Google can’t read it properly.

Local SEO is showing up for searches near you — the map pack, your Google Business Profile, reviews. 

For most NZ service businesses this is the workhorse. When someone searches dentist Auckland and three businesses pop up on a map with star ratings, that’s local SEO — and it’s where a lot of SEO for Auckland businesses is won or lost.

Most real SEO is these four working together, not one in isolation.

What SEO looks like when it works

Here’s the part no textbook can give you: SEO working, with real numbers.

A while back I built a health website called HealthVI with my mentor Ian Pribyl. We took it from zero to over 20,000 organic visitors a month — all from search, no ad spend keeping it alive.

That’s the compounding I mentioned earlier, made concrete. We laid the pipe once. Years later it’s still pulling water.

I’ll be honest with you about the shape of it, though, because most guides won’t be.

SEO is slow at the start. 

The first three months usually look like nothing is happening — you publish, you wait, the graph stays flat, and you start wondering if it’s a scam. 

Then somewhere around the six-month mark it catches, and the same effort that felt pointless starts snowballing.

On paper, a brand-new site has no chance against a competitor who’s been at it for ten years. 

In practice, if you’re more useful and more relevant on the specific thing someone’s searching for, you beat them more often than you’d think — especially in a smaller market like ours. 

My own company’s site did exactly that: 233 keywords ranking and around $3,500 a month in traffic value inside about eight months, on a domain under a year old.

It’s the same playbook I run as done-for-you SEO for NZ businesses — nothing fancy, just the fundamentals done properly and given time to compound. 

That gap between “looks hopeless on paper” and “actually very winnable” is where most of the opportunity in NZ SEO lives.

SEO in the age of AI search

Here’s what almost every other “what is SEO” article won’t tell you, because most of them were written before this mattered: search isn’t ten blue links anymore, and SEO now includes getting cited by AI.

You’ve seen it. You Google something and Google writes you an answer at the top — the AI Overview — before you even reach the links. Those AI Overviews now reach over 2.5 billion people a month, according to Google.

That changes the game in one big way: people click less. 

Pew Research found that when an AI Overview appears, users click a normal search result just 8% of the time — versus 15% when there’s no AI answer. Almost half the clicks, gone to the machine.

So if fewer people click, what’s the win? Being the source the AI quotes. And it pays: pages that get cited inside an AI Overview earn around 120% more organic clicks than pages that don’t.

When Google’s AI writes its answer, it pulls from a handful of websites and often names them. 

Getting picked as one of those sources is the new prize — sometimes called generative engine optimisation, or GEO — and the same things that make Google trust you (clear answers, real authority) are what make the AI trust you too.

Good SEO is good GEO.

And this isn’t hypothetical for me. My own SEO company’s site is barely a year old, and it’s already being cited in Google’s AI Mode — sitting in the answer above tools that have been around far longer.

You don’t need to be the oldest, biggest site to get cited. You need to be the clearest, most trustworthy answer to the question. That’s very much still on the table.

Can you do SEO yourself, or should you hire?

Yes — you can absolutely do the basics of SEO yourself. Where it starts to pay to hire someone is the technical work, the link building, and genuinely competitive niches.

If you’re starting from scratch, here are the first honest moves.

Set up your Google Business Profile properly — this alone does a lot for a local business.

Then figure out the handful of things people actually search for to find a business like yours, and write genuinely useful pages answering those searches — not thin fluff, the real thing.

That’ll get you further than you’d expect.

Where DIY tends to hit a wall is threefold: the technical fixes that need someone who knows what they’re looking at, earning backlinks (slow, relationship-driven work), and any niche where established competitors have a big head start.

If it were my money and my time was tight, I’d do the Google Business Profile and the content myself, and bring in an SEO consultant for the technical audit and the link building — the parts where a bit of experience saves you months of guessing. 

That’s honestly where a lot of businesses land, and it’s where we come in.

Final Thoughts

SEO is one of the best marketing channels you’ll ever have — and it comes down to intent.

The people finding you through search aren’t being interrupted. They’re already looking for exactly what you sell. 

They’re coming to you; you’re not chasing them. That’s a completely different game to an ad you have to shove in front of someone who never asked.

The quote-unquote downfall? It can take up to a year to really get going.

But that’s the trade, and it’s a good one. Put the work in now, and once it clicks, it feeds your business leads for the rest of its life.