What is SEO and How Does it Work? (UK Guide 2026)

What Does SEO Stand For?

SEO stands for Search Engine Optimisation. It is the practice of improving your website so that Google (and other search engines) rank it higher in their results pages (called SERPs). When someone in Birmingham searches "dentist near me" or a retailer searches "wholesale packaging UK", the sites that appear on page 1 have earned that position through SEO — either organically over time, or with the help of an SEO agency.

The goal is simple: more visibility = more clicks = more enquiries or sales. Unlike paid ads, SEO traffic does not stop the moment you turn off a budget. It compounds.

How Does Google Decide Who Ranks?

Google uses over 200 ranking signals, but the most important fall into three categories:

1. Relevance — Does your page actually answer what the searcher is looking for? Google reads your content, headings, URL, and metadata to judge this.

2. Authority — How trustworthy and credible is your site? This is largely determined by how many quality websites link to yours (called backlinks) and your E-E-A-T signals (Experience, Expertise, Authoritativeness, Trustworthiness).

3. Technical performance — Can Google crawl and index your site? Does it load fast on mobile? Is there duplicate content causing confusion?

All three must be strong. A perfectly written page on a slow, poorly-linked website will not rank. A fast, well-linked site with thin content will not rank either.

The Four Pillars of SEO

Technical SEO — This is the foundation. It covers site speed (Core Web Vitals), mobile-friendliness, crawlability, structured data, canonical tags, and indexation. Without solid technical SEO, your content will not even be considered.

On-Page SEO — Optimising individual pages: title tags, meta descriptions, H1/H2 structure, keyword placement, internal linking, and image alt text. Each page should target one primary query with crystal-clear intent alignment.

Content Strategy — Publishing pages and articles that answer the specific questions your customers are searching. This includes service pages, location pages, and blog content covering informational queries in your niche.

Link Building — Earning backlinks from authoritative, relevant websites. A mention from a credible industry publication carries far more weight than 50 links from low-quality directories.

How Long Does SEO Take to Work?

This is the most common question we hear. Honest answer: you will typically see measurable improvements in 60–90 days for technical fixes and on-page changes. Significant ranking gains for competitive keywords usually appear between months 4 and 6. For highly competitive terms (e.g. "SEO agency UK"), sustainable page-1 positions take 9–18 months of consistent work.

However, the returns are compounding. A client we onboarded in January 2025 saw +340% organic traffic by month 8 — and that traffic continues to grow with no additional ad spend.

What Does an SEO Agency Actually Do?

A good SEO agency (like Get Found) runs a structured programme across all four pillars:

• Month 1: Technical audit, keyword research, competitor gap analysis, quick-win fixes
• Month 2–3: On-page optimisation, content brief creation, initial link outreach
• Month 4+: Content publishing, link acquisition, performance reporting, refinement

You should receive transparent monthly reporting that ties keyword movements to traffic, leads, and revenue — not vanity metrics like "impressions".

SEO vs PPC: Which is Better?

Neither is universally better — they serve different purposes. PPC (Google Ads) drives immediate traffic but stops the moment your budget runs out. SEO takes longer to build but delivers compounding returns at a fraction of the cost-per-lead over time.

For most UK businesses, the smartest strategy is to run Google Ads for immediate revenue while investing in SEO for long-term dominance. We typically see clients transition to SEO-primary within 12–18 months as organic traffic scales past paid volume.