# Nenn

> Nenn checks whether ChatGPT, Perplexity and Google AI Overviews name your company when customers ask, and drafts the fix.

Nenn is an AI visibility (GEO) tool for companies of any size and for agencies. Every week it asks ChatGPT, Perplexity and Google AI Overviews the questions customers ask, shows who AI names, and drafts the fix. Nothing goes live without the owner's approval.

## Key facts

- Paid plans check ChatGPT, Perplexity and Google AI Overviews every week.
- The checks use the questions your customers ask.
- Paid plans start with a 7-day trial. A card is needed for the trial.
- Plans for businesses, per month: Start €39, Growth €99, Pro €249.
- Plans for agencies, per month: Agency Start €199, Agency Growth €449, Agency Scale €899.
- All prices are in EUR.
- Company: Nenn, 21079 Hamburg, Germany.
- Contact: hello@nenn.io
- Crawler user agent: NennBot/1.0 (+https://nenn.io/bot)

## Pages

- [Home](https://nenn.io/): what Nenn is, how AI picks the businesses it names, FAQ
- [/about](https://nenn.io/about)
- [/aeo-tool](https://nenn.io/aeo-tool)
- [Nenn for agencies](https://nenn.io/agencies): agency plans, one shared answer pool for all clients, partner programme
- [/ai-visibility-checker](https://nenn.io/ai-visibility-checker)
- [/ai-visibility-tool](https://nenn.io/ai-visibility-tool)
- [/blog](https://nenn.io/blog)
- [NennBot](https://nenn.io/bot): our crawler, its user agent and how to block it in robots.txt
- [AI engines](https://nenn.io/engines): which AI engines Nenn checks every week and what it records per engine
- [/features/ai-competitor-analysis](https://nenn.io/features/ai-competitor-analysis)
- [/features/ai-content-writer](https://nenn.io/features/ai-content-writer)
- [/features/ai-visibility-check](https://nenn.io/features/ai-visibility-check)
- [/features/ai-visibility-tracking](https://nenn.io/features/ai-visibility-tracking)
- [Nenn for founders](https://nenn.io/for/founders): see if AI names your company, who it names instead, and the page to write
- [Nenn for marketing teams](https://nenn.io/for/marketing-teams): a weekly AI visibility number by topic and engine, next to Google
- [Nenn for sales teams](https://nenn.io/for/sales-teams): which rivals AI names to your buyers and which sites it quotes
- [/geo-tool](https://nenn.io/geo-tool)
- [/glossary](https://nenn.io/glossary)
- [Help](https://nenn.io/help): trial, cancelling, billing, credits, engines, countries and your data
- [/how-it-works](https://nenn.io/how-it-works)
- [Integrations](https://nenn.io/integrations): publishing approved drafts to a hosted page, widget, WordPress, Webflow, Framer
- [/llm-visibility-tracker](https://nenn.io/llm-visibility-tracker)
- [/mcp](https://nenn.io/mcp)
- [/mcp/setup](https://nenn.io/mcp/setup)
- [/mcp/tools](https://nenn.io/mcp/tools)
- [/mcp/use-cases](https://nenn.io/mcp/use-cases)
- [Pricing](https://nenn.io/pricing): all plans compared, trial and cancel terms
- [Connect Nenn to Claude](https://nenn.io/mcp/setup/claude): step-by-step setup of the Nenn MCP server in Claude
- [Connect Nenn to ChatGPT](https://nenn.io/mcp/setup/chatgpt): step-by-step setup of the Nenn MCP server in ChatGPT
- [Connect Nenn to Claude Code](https://nenn.io/mcp/setup/claude-code): step-by-step setup of the Nenn MCP server in Claude Code
- [Connect Nenn to Cursor](https://nenn.io/mcp/setup/cursor): step-by-step setup of the Nenn MCP server in Cursor
- [Connect Nenn to VS Code](https://nenn.io/mcp/setup/vscode): step-by-step setup of the Nenn MCP server in VS Code
- [Connect Nenn to Codex](https://nenn.io/mcp/setup/codex): step-by-step setup of the Nenn MCP server in Codex
- [Connect Nenn to Windsurf](https://nenn.io/mcp/setup/windsurf): step-by-step setup of the Nenn MCP server in Windsurf
- [Connect Nenn to n8n](https://nenn.io/mcp/setup/n8n): step-by-step setup of the Nenn MCP server in n8n
- [Connect Nenn to any MCP app](https://nenn.io/mcp/setup/other): step-by-step setup of the Nenn MCP server in any app that supports remote MCP

## Blog

- [AI Visibility Checklist for 2026: 20 Checks (GEO Checklist)](https://nenn.io/blog/ai-visibility-checklist): A one-page GEO checklist: 20 checks in 4 groups, from robots.txt to weekly AI answers, each with how to test it. Tick it here or print it.
- [Can ChatGPT See My Website? 4 Checks for AI Crawlers](https://nenn.io/blog/can-chatgpt-see-my-website): Can ChatGPT see your website? Check robots.txt, your firewall, text without JavaScript and the search index, in that order. With our own test.
- [ChatGPT Ads: Pay for the Ad or Get Named in the Answer?](https://nenn.io/blog/chatgpt-ads-or-organic-answer): ChatGPT ads now run in 89 countries on the Free and Go plans. How an ad slot differs from being named in the answer, with dates and sources.
- [ChatGPT Has Never Heard of My Company. What Now?](https://nenn.io/blog/chatgpt-has-never-heard-of-my-company): If ChatGPT has never heard of your company, it found no page it trusts that names you. Why that happens, how to test it, and a start plan.
- [ChatGPT Has Wrong Facts About My Company: How to Fix It](https://nenn.io/blog/chatgpt-wrong-information-about-my-business): You cannot edit ChatGPT, but you can fix the pages it reads. 5 steps to correct wrong or old facts, and what our price test showed.
- [EU AI Act Article 50: Do You Have to Label AI-Written Text?](https://nenn.io/blog/eu-ai-act-labelling-ai-written-text): Article 50 of the EU AI Act has applied since 02.08.2026. Who must label chatbots, deep fakes and AI text, with dates and article numbers.
- [How Often Does ChatGPT Update What It Knows About You?](https://nenn.io/blog/how-often-does-chatgpt-update-its-information): The trained model updates rarely. With search on, ChatGPT can read your changed page once it fetches it again. What speeds that up, and how to measure it.
- [How to Get AI Like ChatGPT to Recommend Your Company](https://nenn.io/blog/how-to-get-chatgpt-to-recommend-your-company): You cannot apply or pay to be named. See which pages AI cited in our 115 runs, pricing first and Reddit never, plus 6 steps to be found.
- [How to Rank in Perplexity: How It Picks Sources (2026)](https://nenn.io/blog/how-to-rank-in-perplexity): Perplexity has no fixed ranks. It searches for each question and cites numbered sources. 5 steps to be one of them, which bot to allow, and the ads status.
- [How to See ChatGPT Traffic in Google Analytics 4](https://nenn.io/blog/how-to-see-chatgpt-traffic-in-google-analytics): GA4 has an AI Assistant channel since May 2026. See ChatGPT, Gemini and Perplexity visits in 5 steps, with a regex, and what GA4 still misses.
- [How to Show Up in Google AI Overviews (Updated 2026)](https://nenn.io/blog/how-to-show-up-in-google-ai-overviews): Google says AI Overviews need nothing beyond normal Search rules. 5 steps for a company, plus what changed in 2026: bigger answers, more links.
- [Schema Markup for AI Search: What Helps and What Does Not](https://nenn.io/blog/schema-markup-for-ai-search): Google says AI features need no special schema. What Organization, Offer, FAQPage and Breadcrumb markup still do for a company, with copyable JSON-LD.
- [Search Console AI Report: What It Shows and What It Misses](https://nenn.io/blog/search-console-ai-report): Since 31.08.2026 every Search Console property has a generative AI report. What it shows, its 3 limits, and what the AI opt-out switch does.
- [Should You Block AI Crawlers? What Each Bot Does](https://nenn.io/blog/should-you-block-ai-crawlers): Should you block AI crawlers? Training bots and search bots are two choices. What GPTBot, OAI-SearchBot and others do, and Cloudflare's 2026 change.
- [Where Does ChatGPT Get Its Information About Companies?](https://nenn.io/blog/where-does-chatgpt-get-its-information): ChatGPT uses two sources: what it learned in training and pages it reads with search on. Our runs: Reddit seen 422 times, cited 0.
- [Why Does ChatGPT Confuse My Company With Another One?](https://nenn.io/blog/why-does-ai-confuse-my-company-with-another): ChatGPT mixes up companies with close names when your own facts are thin. What AI said about our own name, and 6 fixes any company can make.
- [Why Does ChatGPT Give Different Answers to the Same Question?](https://nenn.io/blog/why-does-chatgpt-give-different-answers): ChatGPT picks words with some chance, searches again each time and changes models. Our runs: 59 searches for one question, in 57 different wordings.
- [Why Does ChatGPT Recommend My Competitor? 5 Reasons](https://nenn.io/blog/why-does-chatgpt-recommend-my-competitor): Why does ChatGPT recommend your competitor? 5 common reasons, a quick check for each, and what we saw in 115 AI runs.
- [Why Is My Organic Traffic Dropping? AI Answers Take the Click](https://nenn.io/blog/why-is-my-organic-traffic-dropping): Organic traffic down but rankings steady? AI answers often take the click. Public studies with caveats, and 5 checks in Search Console.

## Glossary

- [Google AI Overviews vs AI Mode: What Is the Difference?](https://nenn.io/glossary/ai-overviews-vs-ai-mode): AI Overviews is a short AI summary above Google results. AI Mode is a separate mode for longer answers and follow-ups. One table, checked November 2026.
- [AI Share of Voice: Meaning and How to Calculate It](https://nenn.io/glossary/ai-share-of-voice): AI share of voice is your mentions divided by all company mentions in AI answers. The formula, a worked example, and what is not counted.
- [What Is AI Visibility? Meaning and How It Is Measured](https://nenn.io/glossary/ai-visibility): AI visibility is how often AI answers name your company for your customers' questions. The 3 numbers that measure it, with a worked example.
- [What Is a Brand Entity in AI Search? Plain Definition](https://nenn.io/glossary/brand-entity): A brand entity is the one thing AI connects your name, domain, place and offer to. A plain definition, an example and the signals that help.
- [AI Citation vs Mention: What Is the Difference?](https://nenn.io/glossary/citation-vs-mention): What is an AI citation? A link to a page the AI used. A mention is your name in the answer. You can get one without the other.
- [What Is Generative Engine Optimization (GEO)?](https://nenn.io/glossary/generative-engine-optimization): Generative engine optimization (GEO) means making your pages easy for AI to find, quote and name. Plain definition, origin and one example.
- [GEO vs SEO vs AEO: What Is the Difference?](https://nenn.io/glossary/geo-vs-seo): GEO vs SEO vs AEO: mostly the same work with a different scoreboard. One table: goal, where it shows, what is measured, what overlaps.
- [What Is llms.txt, and Does It Work?](https://nenn.io/glossary/llms-txt): llms.txt is a Markdown file that sums up a site for AI tools. One large study found little use: 97% of files got no requests in May 2026.
- [What Is Query Fan-Out in AI Search?](https://nenn.io/glossary/query-fan-out): Query fan-out means AI splits one question into several smaller searches and reads the results of each. How it works, with Google's own words.
- [What Is a Zero-Click Search?](https://nenn.io/glossary/zero-click-search): A zero-click search ends on the results page with no click to a website. Why AI answers add to it, and what a company can do.

## Nenn MCP use cases

- [Agency client report from your AI tool](https://nenn.io/mcp/use-cases/agency-client-report): Agencies: ask your AI tool for a report on one client brand, built from Nenn checks.
- [Fix a missed question with a draft](https://nenn.io/mcp/use-cases/fix-a-missed-question): Your AI tool writes a fix article from a Nenn brief. Nenn checks it and saves a draft. 0 Nenn credits.
- [Check if AI crawlers can read your site](https://nenn.io/mcp/use-cases/robots-llms-check): Ask your AI tool which Nenn website checks failed, for example robots.txt rules for AI crawlers.
- [Weekly AI visibility brief in your AI tool](https://nenn.io/mcp/use-cases/weekly-brief): Ask Claude or ChatGPT for your weekly Nenn brief: how often each AI engine named you and what changed.
- [Check what AI says about your business](https://nenn.io/mcp/use-cases/what-ai-says-about-us): Ask your AI tool what ChatGPT, Perplexity and Google AI answered about you, and which pages they cite.
- [See who AI names instead of you](https://nenn.io/mcp/use-cases/who-ai-names-instead): Ask your AI tool which competitors ChatGPT, Perplexity and Google AI name for your customers' questions.

## App

- [Start the 7-day trial](https://app.nenn.io/sign-up): sign up, a card is needed for the trial
- [Log in](https://app.nenn.io/sign-in): for existing accounts

## Profiles

- [Nenn on LinkedIn](https://www.linkedin.com/company/nenn-ai/)
- [Nenn on X](https://x.com/nenn_ai)
- [Nenn on Instagram](https://www.instagram.com/nenn.ai/)
- [Nenn on Threads](https://www.threads.com/@nenn.ai)
- [Nenn on YouTube](https://www.youtube.com/@nenn-ai)