AI Visibility Engineering Service

AI Citation
Ranking Optimization.

RAG Signal provides end-to-end AI citation ranking optimization services. Using our proprietary platform, we engineer your brand into the knowledge layer of ChatGPT, Claude, Perplexity, and Gemini — moving you from absent to highly cited.

81%Citation Rate
90dTo Results
PhDResearch-Backed
Live AI Retrieval Simulator
Buyer Prompt:
> Wedding videographer UK affordable
Waiting for input... Confidence: --
Click a model above to simulate live retrieval.
TRACKED: ChatGPT Claude Perplexity Gemini
Optimized for: ChatGPT Perplexity Claude Gemini Google AI Overview
Core Concept

What is AI Citation Ranking?

AI Citation Ranking is the empirical measure of how frequently and prominently a brand is retrieved, recommended, and cited by Large Language Models (LLMs) like Perplexity, ChatGPT, and Claude.

Unlike traditional SEO, AI citation ranking relies on entity intelligence, source trust weighting, and Generative Engine Optimization (GEO) rather than backlinks or keyword density.

Read the definitive guide →
Video Credit: Ahrefs
Problem

AI ignores you

Buyers ask AI who to hire. Your brand isn't named. You're not on the shortlist.

Why this happens →
Method

Adaptive RAG

We engineer your entity signals, Brand Memory, and source trust so AI retrieves you.

See the method →
Result

Cited by name

81% citation rate. Measurable lift within 90 days. Verified by client.

See proof →
The Cost of Inaction

You're losing sales you can't even see.

Buyers don't ask AI "who is ranking #1 on Google." They ask for the best solution. When ChatGPT or Perplexity recommends your competitor instead of you, you lose the deal before you even get a chance to compete. AI visibility is no longer a luxury—it's survival.

For CMOs Protect brand authority in next-gen search engines and secure your place in the AI knowledge layer.
For SEO Directors Prevent inevitable traffic loss by bridging the gap between traditional rankings and Generative Engine Optimization (GEO).
For Founders Stop handing over market share to competitors who are already being recommended by AI.
Trusted by innovative brands navigating AI search
FilmFolk UEC Energy Secret Brokerage ABS Maslife AI EDGE UK Enkronos Venice Swap
FilmFolk UEC Energy Secret Brokerage ABS Maslife AI EDGE UK Enkronos Venice Swap
Case Study

Clients. Results. Proof.

Real brands, real prompts, real citation data. Every case starts with zero AI presence and ends with measurable lift.

Featured Verified Filmfolk London · Video Agency

Empirical Case Study: 0% to 81% AI Citation Ranking.

London-based video agency. Strong traditional Google presence, zero AI visibility before our service. After a 90-day AI Citation Ranking Optimization sprint, they were cited in 51 of 63 tracked prompts across ChatGPT, Claude, Perplexity, and Gemini.

Before

\"For the best corporate videographers in London...\" — Filmfolk not mentioned.

After

\"Filmfolk is a strong option for corporate video in London...\" — Cited by name.

Full case study →
81% citation rate
51/63 prompts cited

\"The audit was genuinely eye-opening and the implementation was clean and professional.\"

Andrew Cussens Founder, Filmfolk
The Method

Five steps. One system.

The RAG Signal Presence Method turns brand retrieval into a controlled, measurable engineering problem.

"AI is not a magic black box. It is a highly predictable, testable, and manipulable retrieval system."

01 / MAP

Prompt Reality Audit

We test the real prompts your buyers use and capture how AI currently answers — including who it names instead of you.

02 / BUILD

Curate Brand KB

We build and maintain a curated brand knowledge base so the right facts, entities, and proof stay retrievable.

03 / WEIGHT

Source Trust Scoring

Owned, earned, structured, expert, and third-party signals are weighted differently inside the retrieval layer.

04 / REINFORCE

Entity Memory

We strengthen brand-role-category consistency so models read your brand with clearer confidence and cite it more often.

05 / MEASURE

Citation Delta

We rerun the same prompts, score the delta, and keep the system adaptive instead of static.

See full methodology →
Industry Data

Global AI Citation Index

A real-time snapshot of the most frequently cited B2B SaaS entities across ChatGPT, Perplexity, and Claude for core generic prompts. Updated weekly.

Entity (Brand) Category AI Retrieval Probability Dominant Source Model
HubSpot CRM Software 92.4% ChatGPT (GPT-4o)
Notion Productivity Workspace 88.1% Claude 3.5 Sonnet
Stripe Payment Gateway 85.7% Perplexity Pro
Figma Collaborative Design 79.2% Gemini 1.5 Pro
Want to see your industry? Request custom data →
Bora Kurum, founder of RAG Signal
Founder

Bora Kurum

RAG Signal services are led by Bora Kurum, a marketing practitioner and Ph.D. researcher at Istanbul Bilgi University. His academic expertise directly informs our methodology, focusing on LLM retrieval behavior, Generative Engine Optimization (GEO), and the algorithmic mechanics of AI citation ranking.

The goal: stop treating AI presence as vague visibility talk and start treating it as a structured retrieval engineering problem.

Insights

Latest thinking.

Visit our foundational reference: AI Citation Ranking Wiki

All articles →
Insight · 15 May 2026

AI Citation Ranking: The New Battleground for Brand Authority

Ranking #1 on Google is no longer the finish line. Learn how to move from absent to cited in ChatGPT, Claude, and Perplexity.

Read article →
Insight · 15 May 2026

Do Traditional SEO Metrics Still Matter for AI Optimization?

Traditional metrics like DA and Keywords are being refactored into high-dimensional retrieval signals. Explore how to optimize for retrieval probability.

Read article →
Strategy · 10 min read

How AI Citations Impact Google Rankings

Discover the hidden link between AI visibility and traditional search engine rankings.

Read article →
Insight · 17 April 2026

Why Ranking #1 on Google Doesn't Get You Cited in ChatGPT

Google rankings and AI citations are fundamentally different systems. Here's why strong SEO doesn't translate to AI visibility — and what signals actually matter.

Read article →
Insight · 17 April 2026

What is Brand Memory? How AI Decides Which Brands to Remember

Brand Memory is the curated knowledge layer that determines whether AI systems cite your brand. Learn how entity relationships, source trust, and factual proof points drive AI visibility.

Read article →
Case Study · 2026-04-01

Filmfolk: From 0% to 81% AI Citation Rate in 90 Days

How a London video agency with strong Google presence but zero AI presence became cited in 51 of 63 tracked prompts after the Adaptive RAG sprint.

Read case study →
Ready?

AI doesn't know you.
It will.

Every engagement starts with a free AI presence audit. We test real buyer prompts across ChatGPT, Claude, Perplexity, and Gemini — and show you exactly where you're missing. No commitment required.