SEO Basics: A Complete Beginner's Guide

What Is SEO?

Search Engine Optimisation (SEO) is the practice of improving a website so that it ranks higher in organic (unpaid) search engine results. The goal is to attract more qualified visitors by matching your content to what people are actually searching for.

The Three Pillars

Modern SEO rests on three foundations: technical optimisation (ensuring crawlers can reach your pages), content relevance (matching user intent), and authority (earning links and trust signals).

Technical Signals

Technical SEO covers page speed, mobile-friendliness, HTTPS, structured data, canonical URLs, sitemaps, and robots directives. Even great content will underperform if the technical foundation is broken.

Content Signals

Search engines evaluate content depth, topical authority, E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness), and how well a page answers the searcher's underlying question.

Keyword Research

Start by understanding what queries your audience uses. Tools like Google Search Console, Ahrefs, and Semrush reveal search volume, difficulty, and intent clusters you can target.

On-Page Optimisation

Place your primary keyword in the title tag, meta description, H1, and naturally throughout the body. Use descriptive alt text for images and include internal links to related content.

Pro tip

Keep title tags under 60 characters and meta descriptions under 160 characters to avoid truncation in SERPs.

Further reading

See Google's SEO Starter Guide for the official documentation.