The visible.md blog

Search visibility,
defined and explained.

Foundational explainers, diagnostic frameworks, and original research on AI search visibility — written by Marketing Signals, the team behind visible.md. 11 posts and counting.

Category 01
Foundations
Definitional pieces, glossaries, and conceptual explainers. The reference material.
Foundations · 25 Apr 2026 · 12 min

What is Generative Engine Optimization (GEO)?

A complete definition of GEO: what it is, how it differs from SEO, the four disciplines behind it, and how to start measuring it. The category-defining piece.

Read the full piece
Foundations · 25 Apr 2026 · 14 min · 32 terms

AI Search Visibility: A Complete Glossary

Every term you need to talk about GEO and AI search with a CMO, a CFO, or a sceptical board. Bookmark it, cite it, argue with it.

Read the glossary
Foundations · 25 Apr 2026 · 11 min

GEO vs SEO: do you need both?

How GEO and SEO actually differ, where they overlap, and how marketing leaders should split their budget between the two. With a working budget allocation framework.

Read the comparison
Foundations · 25 Apr 2026 · 11 min

How to add your brand to ChatGPT's training data

You can't, directly. But you can absolutely influence what gets included in the next training snapshot. The four highest-leverage moves.

Read the playbook
Foundations · 25 Apr 2026 · 10 min

How long does GEO actually take to work?

Live retrieval responds in weeks. Training data takes 6–12 months. The honest timelines, with leading indicators to watch before the big numbers move.

Read the timelines
Category 02
Diagnostics
"Is X happening?" / "Why isn't Y working?" Practical, problem-led pieces.
Diagnostics · 25 Apr 2026 · 11 min

Why isn't my brand showing up in ChatGPT?

The 12 reasons brands disappear from AI answers, ranked by likelihood, with a step-by-step diagnostic to figure out which one applies to your specific brand.

Diagnose the problem
Diagnostics · 25 Apr 2026 · 11 min

Why does ChatGPT recommend my competitor instead of me?

The eight reasons your competitor wins the AI conversation, and the diagnostic process that surfaces which two or three apply to you.

Read the analysis
Diagnostics · 25 Apr 2026 · 10 min

Is your brand being mentioned with the wrong frame?

Being mentioned isn't always a win. When AI engines describe you in dated, off-positioning, or negative terms — how to detect it and how to fix it.

Read the diagnostic
Category 03
Frameworks
Reusable models, scorecards, and templates. For marketing leaders running the work.
Frameworks · 25 Apr 2026 · 12 min

What to measure quarterly: a GEO scorecard

The eight metrics across visibility, velocity, and competitive position that drive every GEO budget decision. With the one-slide template.

See the framework
Frameworks · 25 Apr 2026 · 11 min

The 5 GEO mistakes brands make in their first 90 days

The patterns that consistently fail when brands first attempt GEO — and the working 90-day plan that doesn't fall into them.

Avoid the mistakes
Category 04
Sales-enabling
For internal champions making the business case.
Sales-enabling · 25 Apr 2026 · 11 min

Calculating ROI on a Search Visibility Audit

The framework for justifying a Search Visibility Audit to a sceptical CFO. The math, the assumptions, the talking points that hold up under scrutiny.

Build the case
When you're ready to act on what you've read

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