Launch pricing · 25% off every listingBrowse domains
RevisedRevised
Free SEO Tool

Agent Citability Checker

Enter a domain to see its Agent Citability score: a 0 to 100 measure of how deeply the trusted layer of the web references it.

Agent Citability scores a domain from 0 to 100 on how deeply it is woven into the trusted layer of the web: the reference works, government and academic sites, and editorial newsrooms that AI answer engines lean on when they answer a question. It is built to predict whether those engines would treat a domain as citable.

Links are weighted by who published them, from a curated list of over 1,000 sources. A reference from an encyclopedia or a university page moves a score. A listing anyone can add in a minute does not. Scores are calibrated within each release, and they can go down as well as up, which is the difference between this and the authority metrics it sits next to.

This is a v0 preview. The full method, the tier philosophy and what the score deliberately does not claim are on the methodology page, and the reasoning behind building it at all is in the announcement.

Enter a domain to check

See the score and the trusted sources behind it

Agent Citability

What we measure

Agent Citability is one number and the evidence behind it. Here is what each part of a result means.

The score

A 0 to 100 score for how deeply a domain is referenced by the parts of the web that answer engines treat as trustworthy. Higher means more of that reference, from better places.

Trusted sources

Links from a curated, tiered list of over 1,000 sources: reference works, government and academic sites, wire services and editorial newsrooms. A link anyone can post in a minute counts for almost nothing.

The sources behind it

The domains listed under a result are the trusted sources we found linking to it. They're the part you can go and verify yourself, which is why we show them rather than just the number.

What it doesn't claim

Agent Citability measures citability, not citations. It does not predict that any engine will cite a domain, and it says nothing about whether the content on it is any good.

Current release: May–July 2026 index · preview

FAQ

Frequently asked questions

What is Agent Citability?

Agent Citability is a 0 to 100 domain score for how deeply a site is referenced by the trusted layer of the web: the reference, government, academic and editorial sources that AI answer engines draw on. It weights links by who published them rather than counting them all the same.

Is this checker free?

Yes. No signup, no card, no usage cap. Enter a domain and you get the score and the trusted sources behind it.

Why is there no score for my domain?

We only hold a score for domains that trusted sources link to. If nothing in that set links to a domain, there is nothing to score and we say so rather than showing a zero. A zero would claim we measured something and found it empty, which is a different statement.

How is this different from Domain Authority?

Domain Authority and Domain Rating estimate ranking strength from the shape of the link graph, and they only go up. Agent Citability asks a narrower question: does the trusted layer of the web reference this domain? It can also fall, which is the point of it.

Can an Agent Citability score go down?

Yes. A score drops when trusted sources stop referencing a domain, when a linking source is re-tiered, or when a new release recalibrates the scale. Scores are shipped as versioned releases, each with notes on what moved.