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Glossary of terms

Citation index

Visibility in AI
The citation rate refers to the proportion of responses in which the model cites your domain as a source. It shows whether your content is even entering the pool of information from which the models draw to generate their responses.
Last updated: 7 September 2026
What does that mean?

How we calculate the citation index

The denominator comprises all responses in the scan, not just those in which the brand was mentioned. This ensures that the metric does not rise artificially when visibility falls.
Answers in the scan
100%
The brand has gone by the wayside
41%
The model references your domain
6%

We calculate the citation rate based on all responses in the scan, not just those in which the brand was mentioned. Sample data.

A typical scenario looks like the one above: the brand is mentioned in some of the responses, but its domain is cited several times less frequently. This means that the model is aware of the company from other people’s websites, rather than from its own.
A low metric with high visibility is a sign that you need to work on the content’s format, that is, on AEO. A high score with low visibility is less common and indicates that the page is a source of information on that category, whilst the brand itself does not appear in the recommendations.
In the product

Where can you see this in Aelo?

Where can you find the citation index?
The Citation Tile in the Visibility module A metric showing the change between scans and the number of domains cited in your category.
List of domains cited Which pages does the model access most frequently? These are usually summaries and rankings, not company websites.
GEO and AEO audit Assessing whether your content is suitable for quotation: structure, specificity, and providing the answer at the start.
We describe the formula and the rules for calculation in methodology.
FAQ

Questions about the citation index

The questions most frequently asked in connection with this concept.
What is a citation index?

This is the portion of the responses in the scan where the model cites your domain as a source. We count this across all responses, not just those where the brand is mentioned.

How does it differ from visibility?

Visibility indicates whether a brand is well-known by name. The citation index indicates whether a model is used on your website. These two figures can vary considerably. See the entry for more details reference.

I have high visibility and a low rating. What does that mean?

That the model learns about the brand from other websites, rather than from yours. There’s usually a lack of content from which a ready-made answer can be extracted. We explain this in the article What is an AEO?.

Do citations translate into traffic?

Sometimes, yes, because some models provide a link to the source. Not always, though, because the user might simply settle for the answer. That is why we measure them separately from traffic.

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