Search Engine Optimization is the practice of improving a website's visibility in organic (unpaid) search results. Here's the core breakdown, plus what's changed lately given how fast this space is moving.
Core Pillars
- On-page SEO – content quality, keyword targeting, title tags, headers, internal linking, page structure
- Technical SEO – site speed, mobile-friendliness, crawlability, indexing, structured data (schema markup)
- Off-page SEO – backlinks, brand mentions, digital PR — signals that other sites vouch for your credibility
- Local SEO – Google Business Profile optimization, local citations, reviews — critical for location-based businesses
This is genuinely one of the biggest shifts in SEO's history right now. Key things to know:
The Big Change: AI Search / GEO
- Zero-click search is dominant — over 58.5% of Google searches now end without a click, meaning the answer is shown right on the results page GoodFirms
- AI Overviews cut into traffic — AI Overviews reduce organic clicks on the top-ranking result by an average of 34.5% Evergreen
- A new discipline has emerged — often called GEO (Generative Engine Optimization) or AEO (Answer Engine Optimization): optimizing not just to rank, but to be the source an AI cites in ChatGPT, Gemini, Perplexity, or Google’s AI Overviews
