SEO vs AEO vs GEO: what marketers should track

Marketers still talk about "search visibility" as if it were one channel. It is not. Google rankings, AI assistant mentions, and AI search citations are related, but they answer different questions and need different metrics.

SEO: classic search rankings

Search Engine Optimization is still about earning organic visibility in search engine results. You track keyword ranks, clicks, impressions, and landing-page quality. If someone searches "best project management tools" and your page sits in position three, that is SEO working.

• Primary metrics: rank position, Search Console queries, organic sessions, conversions from organic.
• Owned surfaces: title tags, content depth, technical crawlability, links, Core Web Vitals.
• Failure mode: ranking well while AI answers never mention you.

AEO: mentions inside AI answers

Answer Engine Optimization focuses on whether assistants name your brand when users ask conversational questions. There may be no click. The win is inclusion in the shortlist inside the answer.

• Primary metrics: mention rate by prompt, share of voice vs competitors, sentiment or framing of the mention.
• Owned surfaces: entity clarity, comparison pages, proof assets, consistent third-party facts.
• Failure mode: strong SEO traffic while ChatGPT recommends only competitors.

GEO: citations in generative search

Generative Engine Optimization focuses on whether AI search experiences (such as Perplexity or Google AI Overviews) cite your URL as a source. A mention without a citation can still help awareness. A citation can drive referral traffic and reinforce authority.

• Primary metrics: citation share, cited URLs, competitor displacement on the same queries.
• Owned surfaces: quotable explanations, original data, clear authorship, crawlable Markdown or HTML summaries.
• Failure mode: ranking and mentions look fine while citation share belongs to a rival blog.

How the three layers overlap

Good SEO content often helps AEO and GEO because clear, trustworthy pages are easier for models to reuse. They are not the same outcome. A page can rank and still never be named. A brand can be mentioned with no link. A site can be cited without winning the classic blue-link pack.

A simple scoreboard for marketing leaders

1. SEO: top keywords and movement week over week.
2. AEO: mention rate on a fixed prompt set across major assistants.
3. GEO: citation share on the same prompt set in AI search.
4. Business: visits, sign-ups, or revenue attributed to AI-referred sessions when available.

Common mistakes

• Treating one ChatGPT screenshot as a strategy.
• Optimizing only for Google while buyers decide inside assistants.
• Publishing thin "AI SEO" posts with no measurable prompt set.
• Ignoring competitor displacement when a rival launches content or PR.

Track all three in one place

Farolume was built for this split reality: weekly Google checks, AI mention tracking, and citation share together, with competitor comparison and (on paid plans) a fix list plus Google Analytics attribution for AI-driven visits.