SEO (Search Engine Optimization)
SEO (Search Engine Optimization) uses three pillars — technical, content, and links — to earn higher organic rankings on Google and Bing. By 2026 SEO has merged with GEO: the same article must satisfy both crawlers and AI citation engines.
Category: SEO
What is SEO (Search Engine Optimization)?
SEO (Search Engine Optimization) uses three pillars — technical, content, and links — to earn higher organic rankings on Google and Bing. By 2026 SEO has merged with GEO: the same article must satisfy both crawlers and AI citation engines.
How do you apply it in practice?
Three classic SEO pillars:
• Technical: crawl, render, Core Web Vitals, structured data
• Content: search intent, keyword matrix, topic clusters, E-E-A-T
• Off-page: quality backlinks, brand mentions, Digital PR
In 2026 a fourth layer is added: AI citability — allow GPTBot/PerplexityBot in robots.txt, ship llms.txt, and write Answer Capsules.
Why does it matter for AI search citations?
Generative search engines tend to extract sentences that are clearly defined, consistent and quotable on their own. Writing concepts like "SEO (Search Engine Optimization)" as one consistent definition across your site, backed by structured data and verifiable sources, lowers the chance of being misread. This improves readiness only; it does not guarantee citations or ranking gains — measure actual citations to know.
Which related terms should you know?
GEO (Generative Engine Optimization)
GEO (Generative Engine Optimization) is the practice of optimizing content for generative AI search engines like ChatGPT, Perplexity, and Google AI Overviews so a brand gets cited inside AI answers. Core tactics include Answer Capsules, entity consistency, structured data, and AI-readable llms.txt files.
E-E-A-T
E-E-A-T are the four quality signals from Google's Search Quality Rater Guidelines: Experience, Expertise, Authoritativeness, Trustworthiness. Trust is the foundation — without it, the other three count as zero.
Topic Cluster
A Topic Cluster is a Pillar Page plus N subtopic pages connected by two-way internal links. It signals to Google that you cover a topic comprehensively and is the standard tactic for building Topical Authority.
Core Web Vitals
Core Web Vitals are Google's three UX performance metrics: LCP (Largest Contentful Paint ≤2.5s), INP (Interaction to Next Paint — Good ≤200ms / Needs Improvement 200-500ms / Poor >500ms), CLS (Cumulative Layout Shift ≤0.1). All three must be green to qualify as 'Good' and affect mobile ranking.
SEO (Search Engine Optimization) at a glance
| Term | SEO (Search Engine Optimization) |
|---|---|
| Category | SEO |
| Last reviewed | 2026-10-06 |
References
- Google Search Central: SEO documentation
- Schema.org structured data vocabulary
- W3C JSON-LD 1.1 Recommendation
- GEO: Generative Engine Optimization (arXiv paper)
These documents support the definitions and methods, not ranking or citation promises; reviewed as of 2026-10-06.
By the 23SEOGEO team · Last updated: