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What is AI visibility?

AI visibility is how often and how accurately a brand shows up in answers from AI assistants and answer engines like ChatGPT, Gemini, Perplexity and Google AI Mode. Opttab measures it by running the prompts real buyers ask, by market and language. It records whether the brand and its products are mentioned, how they're described, and which sources the AI cites.

What is AEO (answer engine optimization)?

AEO, or answer engine optimization, is the work of structuring content and data so AI assistants and answer engines can find it, trust it and use it in their answers. It overlaps almost completely with GEO. Typical AEO work means answering questions directly, adding structured data, keeping facts consistent across sources, and making pages readable for AI crawlers. Opttab measures and supports this work.

What is the difference between SEO, GEO and AEO?

SEO aims to rank pages in search results, while GEO and AEO aim to get a brand mentioned, cited and recommended inside AI-generated answers. All three share the same basics, like crawlable pages and useful content. GEO and AEO put extra focus on direct answers, a clear picture of who you are, third-party sources and AI crawler access. Opttab measures the AI side and links it to your SEO data.

What is an answer engine?

An answer engine is a system that replies to a question with a written answer instead of a list of links. ChatGPT, Gemini, Perplexity, Copilot and Google AI Mode are common examples. Answer engines mix what the model learned in training with live web results, so they often cite sources. Opttab tracks what answer engines say about your brand and which sources they cite.

What is an AI citation?

An AI citation is a link or source an AI assistant shows to back up its answer. Citations tell you which websites the assistant relied on, such as review sites, forums, retailers or your own pages. Being cited isn't the same as being mentioned: a brand can be named without its site being cited, and the other way around. Opttab tracks both for every prompt you track.

What is share of voice in AI search?

Share of voice in AI search is the share of brand mentions in AI answers that go to your brand, compared with competitors, for a given set of prompts. If an assistant names five brands in an answer and yours is one of them, you're sharing the voice with four others. Opttab reports share of voice per AI model and market.

What is a prompt in AI visibility tracking?

A prompt is a question or request a real buyer might type into an AI assistant, like which running shoes are best for flat feet. AI visibility tools track a set of prompts over time to see which brands show up in the answers. In Opttab, you can generate prompts automatically, add your own, and organize them by country and language.

What is an AI crawler?

An AI crawler is a bot AI companies use to fetch web pages, whether to train models, build a search index, or pull a page live when someone asks a question. OpenAI, Anthropic and Perplexity all run crawlers like this. Most AI crawlers don't run JavaScript, so they never show up in tag-based analytics. Opttab reads server and CDN logs to measure them.

What is an MCP server?

An MCP server offers a set of tools, like product search or order status, that an AI assistant such as ChatGPT or Claude can call. MCP (Model Context Protocol) is an open standard that lets AI assistants connect to outside tools and data. Opttab builds and hosts a remote MCP server for each brand, so assistants can call the brand directly.

What is an MCP server for ecommerce?

An MCP server for ecommerce lets AI assistants work with a store's live catalog and actions, like searching products, checking stock and delivery, creating a cart or looking up an order. It sits between the assistant and the store's systems and only opens up the actions the brand allows. Opttab creates one for each brand, for example at mcp.opttab.com/yourbrand.

What is a ChatGPT app?

A ChatGPT app is an integration that lets ChatGPT use an outside service during a conversation, for example to search a store's products or check an order. Apps are built on MCP and published through OpenAI's developer program. Opttab publishes ChatGPT apps for brands under its own developer account, each connected to that brand's remote MCP server.

What is agentic search?

Agentic search is search done by an AI agent on someone's behalf. The agent splits a request into several queries, reads and compares sources, and may act on what it finds, for example by adding a product to a cart. For brands, that means the first visitor is often an AI agent, not a person. Opttab measures and serves these agent visits.

What is llms.txt?

llms.txt is a proposed plain-text file at the root of a website that gives AI systems a short, structured guide to the site's most important pages. It's a voluntary convention, not an official standard, and AI platforms don't all read it. It can help, but it doesn't replace crawlable pages, structured data and clear content.

Why does ChatGPT not mention my brand even though I rank well on Google?

ChatGPT can skip a brand that ranks well on Google because AI answers rely on different signals. Those include how clearly your pages answer the question, whether trusted third-party sources mention you, and whether AI crawlers can read your site at all. Good rankings help, but they're not enough. Opttab shows which prompts you're missing, which sources are winning, and what to fix.

Why do AI answers change from one check to the next?

AI answers change because AI assistants write them on the fly and tailor them to location, language and conversation, and because the sources they read change too. Two people asking the same question can get different brands. Opttab tracks prompts again and again, across markets, so you see trends instead of one-off answers.

Can a brand pay to appear in AI answers?

No, a brand can't pay to change what an AI assistant says in its organic answers, but some platforms now offer paid ad placements shown next to answers. ChatGPT ads are one example, where they're available. Organic visibility still comes from content, sources and site access. Opttab tracks organic visibility and helps you run ChatGPT ad campaigns in your own ad account.

How do I create a ChatGPT app for my store?

With Opttab, you get a ChatGPT app for your store without building it yourself. You connect your product feed, your commerce platform (such as Shopify) and your shipping aggregators, and choose which actions to allow. Opttab then creates your remote MCP server and publishes the ChatGPT app under its own developer account. The listing can carry your brand name and follows OpenAI's policies and review.

How do I check if AI assistants can read my website?

To check if AI assistants can read your website, make sure robots.txt and your CDN don't block AI crawlers, that key content is in the HTML rather than loaded only by JavaScript, and that product data is structured. Then look in your server logs for AI crawler visits. Opttab's agent readiness check and Website Analytics do both and list the fixes.

What is GEO, and how is it different from SEO?

GEO (generative engine optimization), also called AEO (answer engine optimization), is the work of improving how a brand shows up in AI-generated answers, while SEO is about ranking pages in search results. With GEO, the goal is to be mentioned, cited and recommended inside the answer itself. That comes down to how your content is structured, what third-party sources say, and how easily AI crawlers can read your site. Opttab started as a GEO tool and still measures and improves AI visibility.

What does it mean for a brand to be callable and transactable by AI?

A brand is callable when an AI assistant can query it directly for live information, like products, prices, stock and delivery options, instead of relying on what it picked up from the web. It's transactable when the assistant can also do things, such as create a cart or place an order. Opttab makes both possible with a Brand Agent built on a remote MCP server for each brand.

What are Opttab's four pillars?

Opttab's four pillars are Discoverability, Visibility, Optimization and Agent. Discoverability checks whether AI crawlers and agents can read your site and finds the prompts buyers ask. Visibility tracks AI answers, AI traffic and the products that get shown. Optimization turns gaps into fixes and content. Agent lets AI assistants call your brand through your own Brand Agent.

How do I sell on ChatGPT?

You sell on ChatGPT by making your catalog and checkout available to it, for example through a ChatGPT app connected to your store. Opttab builds a Brand Agent for your brand on a remote MCP server, hooks it up to your product feed and commerce platform, and publishes it as a ChatGPT app under Opttab's developer account. You stay the merchant of record, and payment goes through your own checkout.

Does Opttab replace my SEO tools?

No, Opttab works alongside your SEO tools rather than replacing them. SEO tools measure rankings and clicks in search results. Opttab measures what AI assistants say about your brand, which sources they cite, how AI crawlers read your site, and whether agents can act on your catalog. Lots of teams use both, and Opttab connects to Google Search Console and Google Analytics 4.

How much does Opttab cost?

Opttab has four plans for brands: Lite is €49 per month or €399 per year, Starter is €139 per month or €1,199 per year, and Growth is €449 per month or €3,999 per year. Enterprise is priced on request. All prices are in euros and exclude VAT.

Is there a free trial?

Yes, there's a 7-day free trial on the Lite and Starter plans for brands and on the Agency Starter and Agency Growth plans. You need a payment card to start, and the trial turns into a paid plan unless you cancel before it ends. Growth, Enterprise, Agency Scale and Agency Enterprise don't come with a trial.

Where is Opttab based, and where is my data stored?

Opttab B.V. is a Dutch company based in Amsterdam, and it stores customer data on Amazon Web Services in the EU, in the Ireland region. The company was founded in 2025 and processes personal data under the GDPR. Opttab doesn't use customer data to train AI models, and its AI model providers don't train on data sent through their APIs.

How do I get started with Opttab?

You can get started with Opttab by starting a 7-day free trial on Lite or Starter, or by booking a demo with the team. After you sign up, you add your brand, markets and competitors, pick or generate prompts, and tracking starts on the first run. Pre-built prompt sets mean you can get going on day one.

How fast can I see results?

You'll see your first Opttab visibility data on the first tracking run, as soon as your prompts are set up. Changes in how AI assistants mention your brand can take a while to show up, because AI models and their sources update at their own pace. How fast things move depends on your market, your content and the actions you take.