SEO (search engine optimisation) is the work that gets your website showing up when people search for what you do. It covers three things: making your site easy for Google to read, writing pages that answer what people are searching for and earning the trust that tells Google you deserve to rank. Done well, it brings in customers without paying for every click.
That is the short version. The rest of this guide explains how it actually works, what it costs and what you can expect, without the jargon.
How Does SEO Work?
Search engines like Google send programs called crawlers around the web to read pages. They store what they find in a huge index, then rank the pages in that index whenever someone searches. SEO is about doing well at each of those stages.
We explain it to clients in three layers:
- Get found. Your site needs to be crawlable, fast and clearly about the things you sell. If Google can’t read a page, nothing else matters.
- Get chosen. Once you appear in the results, your page has to answer the question better than the others and make it easy for people to get in touch or buy.
- Get cited. Google’s AI Overviews and tools like ChatGPT now answer questions directly. Being the source they quote is the newest layer, and it builds on the first two.
What Are the Main Types of SEO?
Most SEO work falls into four areas. A good plan covers all of them, in the order that will make the biggest difference to your site.
| Type | What it covers | Why it matters |
|---|---|---|
| Technical SEO | Speed, crawling, indexing, mobile and structured data | Google can’t rank what it can’t read |
| On-page SEO | Titles, headings, content and internal links | Tells Google and visitors what each page is about |
| Off-page SEO | Links, mentions, reviews and digital PR | Shows Google other people trust you |
| Local SEO | Google Business Profile, reviews and local pages | Gets you into the map pack for nearby searches |
How Does Google Decide Who Ranks First?
Google uses hundreds of signals, but they boil down to three questions: is this page relevant to the search, is it useful and can it be trusted?
- Relevance: does the page clearly match what the person searched for, in the words they used?
- Quality and usefulness: does it answer the question fully, from someone who knows the subject? Google’s own guidance asks whether content shows first-hand experience and expertise.
- Authority and trust: do other reputable websites link to or mention you? Do customers leave reviews?
- Experience: does the page load quickly and work well on a phone?
No single trick moves all of these at once. That is why there are no shortcuts in SEO, and why anyone promising a guaranteed number one spot should be avoided.
What Has Changed in SEO Recently?
The biggest change is that search no longer ends at ten blue links. Google shows AI Overviews above the results for many questions, and more people ask ChatGPT, Gemini or Perplexity for recommendations before they click anything.
That doesn’t make SEO less important. AI tools build their answers from websites they can read and trust, so the same work that gets you ranking makes you more likely to be named in those answers. The difference is that clear, direct answers near the top of a page now matter even more, because that is where AI tools tend to pull their citations from. We cover this in more detail in SEO vs AI search: what’s the difference?
How Long Does SEO Take to Work?
Technical fixes can show results within a few weeks. Most businesses see real growth in rankings and traffic within three to six months, and competitive national searches take longer.
SEO compounds. A page that ranks well keeps bringing in visitors without extra spend, which is why it tends to get better value over time than paid ads, where traffic stops the moment the budget does.
How Much Does SEO Cost?
In the UK, freelance SEO consultants usually charge £300 to £600 a day, and monthly retainers run from around £500 to £5,000 depending on how competitive your market is. We break the numbers down in how much does SEO cost in the UK?
Can You Do SEO Yourself?
Yes, to a point. Most small businesses can handle the basics: claiming a Google Business Profile, writing clear service pages, asking for reviews and fixing obvious problems in Google Search Console. Our technical SEO checklist is a good place to start.
Where it gets harder is competitive markets, technical problems and building authority, which takes time and know-how. That is usually the point where it makes sense to bring in help.
What Should You Do First?
If you are starting from scratch, do these five things in order:
- Set up Google Search Console so you can see how Google sees your site.
- Claim and complete your Google Business Profile if you serve local customers.
- Make sure each service you sell has its own clear page.
- Fix anything that makes your site slow or awkward on a phone.
- Start asking every customer for a review.
What Is SEO? FAQs
What does SEO stand for?
SEO stands for search engine optimisation. It means improving your website so it appears higher in search results for the searches your customers make.
Is SEO worth it for a small business?
For most small businesses, yes. People search for local services and products every day, and appearing in those results brings in customers who are already looking for what you sell.
Is SEO dead because of AI?
No. AI tools build their answers from well-ranked, well-structured websites, so good SEO is what gets you into those answers in the first place.
What is the difference between SEO and PPC?
PPC (pay-per-click) means paying for ads at the top of the results, with traffic that stops when you stop paying. SEO earns your place in the normal results, which takes longer but keeps working.
Get Help With Your SEO
If you would rather hand it over, our SEO services cover the technical, content, local and AI search work in one plan. Or start with a free SEO audit, normally £150, to see exactly where your site stands.
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