Search Engine Optimization (SEO)

Digital marketing discipline focused on improving website visibility and ranking in search engine results through technical, content, and authority optimization.

Technical
Updated December 20, 2025

Definition

Search Engine Optimization (SEO) is the digital marketing discipline focused on improving website visibility and ranking in search engine results pages (SERPs) through technical optimization, content creation, and authority building. SEO has been the foundation of organic digital visibility for decades.

Traditional SEO encompasses technical SEO (site structure, speed, mobile-friendliness), on-page SEO (content optimization, keywords, meta tags), and off-page SEO (link building, brand mentions, social signals). These elements work together to improve search engine rankings and organic traffic.

In the AI era, SEO remains important but must be complemented by GEO. While SEO targets traditional search rankings, GEO targets AI-generated responses. The most effective digital visibility strategy combines both disciplines, recognizing that users now discover information through both traditional search and AI assistants.

SEO and GEO share some principles (quality content, authority, user value) but differ in execution and measurement. Understanding both enables comprehensive visibility across the evolving search landscape.

Key Factors

1
Technical optimization
2
Content quality
3
Authority building
4
User experience
5
Keyword targeting

Real-World Examples

  • 1

    A website implementing technical SEO improvements alongside GEO optimization

  • 2

    A content team balancing SEO keyword targeting with AI citation optimization

  • 3

    A brand measuring both traditional rankings and AI visibility for comprehensive visibility tracking

Frequently Asked Questions about Search Engine Optimization (SEO)

Learn more about this concept and how it applies to AI search optimization.

Share this article

Also Known As

SEO
Organic Search Optimization
Search Marketing

Monitor Your AI Visibility

Track how AI systems mention your brand and optimize your presence.

Explore More AEO & GEO Terms

Continue learning about AI search optimization with our comprehensive glossary.

Browse All Terms