What Is SEO and How Does It Work?

Short answer

SEO (Search Engine Optimization) is the process of getting your website to appear higher in Google search results — without paying for ads. Higher ranking = more people finding your business.

How Google decides who ranks

Google uses 200+ factors, but the main ones are:

Relevance — Does your page actually answer the searcher's question?

• Use the words people search for in your headings and content
• Have pages dedicated to specific topics (not one giant page about everything)

Authority — Does Google trust your site?

• Other websites linking to yours (backlinks) is the biggest trust signal
• An established site with a history outranks a brand new one

Technical quality — Can Google read and load your site?

• Fast loading speed
• Mobile-friendly design
• Secure (HTTPS)
• No broken links or errors

User experience — Do visitors stay or leave?

• If people click your result and immediately go back to Google, that's a bad signal
• Good content keeps people on your page

The three types of SEO

1. On-page SEO — optimizing the words and structure on your pages
2. Off-page SEO — getting other sites to link to you
3. Technical SEO — making sure Google can crawl and index your site properly

What you can do right now

• Make sure every page has a clear title and description
• Write content that genuinely answers questions your customers ask
• Set up a Google Business Profile
• Get your business listed in local directories

Recommended reading

• The Art of SEO — Eric Enge, Stephan Spencer & Jessie Stricchiola — The most comprehensive SEO book available. Updated regularly and considered the industry bible.
• They Ask, You Answer — Marcus Sheridan — A practical content strategy built around answering customer questions — the foundation of organic search success.

Related questions

• How long does SEO take?
• What are keywords in SEO?
• Best SEO tools for small business