Measuring AI visibility: Which metrics matter?

You measure AI visibility with three groups of metrics: how often your brand is mentioned in AI answers, how many visitors reach your website via AI assistants, and how many of them enquire or buy. No single metric is enough. Only together do they show whether work on AI visibility pays off.

1. Mentions in AI answers

• Mention rate: In how many of, say, 30 fixed customer questions is your company mentioned?
• Share versus competitors: How often are you mentioned compared with your three most important competitors?
• Tone and accuracy: Are your services, location and prices stated correctly in the answer?
• Cited sources: Which pages does the assistant link to, your own or third-party ones?

You collect these figures manually with a fixed set of questions or with specialised tools. What matters is that the questions, assistants and timing stay the same, otherwise the figures are not comparable.

2. Visitors from AI assistants

When someone clicks a link in ChatGPT, Perplexity, Gemini or Copilot, Google Analytics 4 often sees a referral source such as chatgpt.com or perplexity.ai. This is how you capture these visitors:

1. In GA4, open the Traffic acquisition report under Acquisition.
2. Filter by session source using a regular expression such as chatgpt|openai|perplexity|gemini|copilot|claude.
3. Save the filter as a custom channel group “AI assistants” so that it appears in all reports.

Not every AI visit is detected this way. Some apps do not pass on a referral source, so those visits end up under “Direct”. The figure is therefore a lower bound.

3. Enquiries and revenue from AI visits

Connect the channel group to your conversions. Only then can you see whether AI visitors enquire more or less often than visitors from Google Search. In many cases there are only a few of them, but they are well informed and ready to decide.

What belongs in the report

For management, four figures a month are enough: the mention rate for your core questions, visitors from AI assistants, enquiries from AI assistants, and the comparison with the previous month. Everything else is working material for the marketing team.

Related reading: AI SEO: How do ChatGPT and others recommend my company? and ChatGPT SEO: How do I check whether ChatGPT mentions my company?

FAQ

Does Google Search Console show clicks from AI Overviews separately?

Not at present. Impressions and clicks from AI Overviews and AI Mode are included in the regular web search figures and cannot be filtered out separately. Queries whose click-through rate falls while impressions stay stable can give you a hint. For direct measurement, you still rely on your fixed set of questions and specialised tools.

Can I see whether AI crawlers visit my website?

Yes, but not in GA4, because bots usually do not run the tracking script. The visits show up in your hosting’s server logs, identifiable by user agents such as GPTBot, OAI-SearchBot or PerplexityBot. Some CDNs, such as Cloudflare, also show these crawlers in their own analytics. This tells you whether your content is being fetched at all.

Why do mentions in AI answers fluctuate from month to month?

AI assistants regularly get new model versions, draw on changing sources when they search the web and never phrase the same answer in exactly the same way. Individual outliers are therefore normal. Ask each question several times and judge the trend over several months rather than a single value.

When to hand this over

• You have no reporting that shows traffic, enquiries and AI visibility together.
• Your GA4 setup is incomplete or your conversions are not accurate.
• You want to base content decisions on data rather than gut feeling.

We set up measurement and reporting so that you can see what works in a single view. Find out more under Strategy & analysis or in a free initial consultation.