What Is SEO? A Beginner’s Guide to Search Engine Optimisation
SEO isn't magic or tricks. It's making useful pages that search engines can find, understand and trust. Here's how it works.
What is SEO? Search engine optimisation is the practice of improving a website so it appears higher in unpaid search results on Google, Bing and other search engines. Good SEO means making pages that answer people’s questions well, are easy for search engines to crawl and understand, load quickly, and earn trust through links and a strong reputation.
We think about SEO every day at PushWiki.com — it’s how most of our readers find us. And the biggest lesson we’ve learned is simple: the pages that rank longest are the ones that genuinely help people.
How search engines work
Search engines work in three main stages:
- Crawling — automated programs called crawlers or bots follow links to discover pages across the web.
- Indexing — the search engine analyses each page’s content and stores it in a huge database called the index.
- Ranking — when someone searches, the engine sorts indexed pages by how relevant and useful they are for that query.
If your page isn’t crawled and indexed, it can’t rank at all. That’s why technical basics matter even before you think about keywords.
The four pillars of SEO
| Pillar | What it covers | Examples |
|---|---|---|
| Content | Pages that answer searchers’ questions | Guides, how-tos, product pages |
| On-page SEO | How each page is structured | Titles, headings, meta descriptions, internal links |
| Technical SEO | How easily search engines access your site | Speed, mobile-friendliness, sitemaps, HTTPS |
| Off-page SEO | Reputation and authority | Links from other sites, reviews, mentions |
1. Content
Content is the foundation. Each page should focus on one main topic and answer it clearly and thoroughly. Google’s guidance talks about “helpful, reliable, people-first content” — pages written to help readers rather than to game rankings.
2. On-page SEO
This means optimising individual pages. Key elements include:
- Title tag — the clickable headline in search results. Include your main keyword and keep it under about 60 characters.
- Meta description — the short summary under the title. It doesn’t directly affect rankings, but a good one earns more clicks.
- Headings — use one H1 and logical H2 and H3 subheadings.
- URL — short, readable and descriptive.
- Internal links — link to related pages on your site so readers and crawlers can find them.
- Image alt text — describe images for accessibility and search.
3. Technical SEO
Technical SEO makes sure search engines can reach and understand your site. Use HTTPS, make pages fast and mobile-friendly, submit an XML sitemap, fix broken links and avoid duplicate pages. Google Search Console is a free tool that shows how Google sees your site and flags problems.
4. Off-page SEO
Links from other reputable websites act like votes of confidence. The best way to earn them is to create content worth referencing — original research, useful tools, clear guides — and to build genuine relationships in your industry. Avoid buying links; it breaks search engine guidelines and can hurt your rankings.
Keyword research basics
Keywords are the words people type into search engines. Keyword research helps you understand what your audience is looking for and how they phrase it.
- List topics your audience cares about.
- Type them into a search engine and note the autocomplete suggestions and “People also ask” questions.
- Use a keyword tool to estimate search volume and competition.
- Look at what already ranks. What type of content is it — a guide, a list, a product page?
- Choose one main keyword per page, plus related phrases you’ll naturally include.
For new sites, longer, more specific phrases — often called long-tail keywords — are easier to rank for. “How to check iPhone IMEI” is more achievable than “iPhone”. That’s exactly the approach behind guides like our article on checking an iPhone IMEI.
What is E-E-A-T?
E-E-A-T stands for Experience, Expertise, Authoritativeness and Trustworthiness. It’s a framework Google uses in its quality guidelines to describe what makes content reliable. Show real experience, name your authors, cite sources, keep content updated and make it easy for readers to contact you.
A simple SEO checklist for every new page
- One clear focus keyword or topic.
- Keyword in the title, first paragraph, URL and at least one subheading.
- A compelling meta description of roughly 120–155 characters.
- At least 2–3 internal links to related pages.
- One or more links to authoritative outside sources.
- Descriptive image alt text.
- Short paragraphs, clear headings and a helpful FAQ where relevant.
Tools like Yoast SEO for WordPress walk you through this checklist on every post. They’re guides, not goals — a green light doesn’t guarantee a ranking, but it keeps the basics consistent.
How long does SEO take?
SEO is a long game. New pages can take weeks to months to rank, especially on new websites. Publishing consistently, improving older content and building your site’s reputation compound over time. That’s also why it’s worth pairing SEO with a channel you control, such as email — see our guide on growing an email list from zero.
For the official source, Google’s SEO Starter Guide is clear and beginner-friendly. And if you’re choosing where to publish, our comparison of digital publishing platforms covers SEO control on each.
Frequently asked questions
What is SEO in simple terms?
SEO is improving your website so search engines can find, understand and rank it higher in unpaid search results.
Is SEO free?
Organic search traffic is free, but SEO takes time and effort, and some businesses pay for tools or specialists.
How long does it take for SEO to work?
Often several weeks to several months, depending on competition, site age and content quality.
What are the main types of SEO?
Content, on-page SEO, technical SEO and off-page SEO.
