The Crane Index^™ Leaderboard

The most AI‑readable sites, by industry.

The top of every published Crane Index^™ benchmark, in one document. Each site is given the same three deterministic reads, whether AI search can find and cite it, whether an agent can act on it, and whether a machine can confirm who it is. This is the monthly roll of honour: the highest scores in each list, every company named, every score verifiable live. It is re-run on the first of each month, so the movement becomes public record.

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First-party measurement · deterministic and re-runnable · re-scored on the first of each month

Read the full tables

Every score in the leaderboard is one click from its full field.

The leaderboard shows the top ten of each cohort. Each benchmark page carries the full ranked field, the sites a machine could not read, the method and the three moves to make first, all live and re-measurable.

The FTSE 100 →Britain's largest companies, measured for AI visibility. UK Ecommerce →Retail's front door, read as a machine finds it. How it is measured →The full method, the exclusions, and the right of reply. Score your own site →The same instrument, free, in about a minute.

Free to cite and republish with attribution (CC BY 4.0). Cite as: The Crane Index^™, the AI visibility benchmark. The Crane Consultancy. thecraneconsultancy.com/research/ · Press and downloads

Questions about the Crane Index

What does the Crane Index measure?

How readable and well-optimised a site is for AI, drawn live from its real pages across three deterministic reads: whether an AI engine can retrieve and cite it, whether an agent can act on it, and whether it is described accurately. Each is scored out of 100, and the composite is the Crane Index.

Why does AI readability matter now?

Because discovery is moving. In 2026, Google reported that its AI Mode in Search had passed a billion monthly users. What an assistant can read of an organisation comes down to the machine-readable layer of its site, the structured data Google Search Central documents.

How often is it re-run?

Every month, on the first, so the movement is a matter of public record rather than a single snapshot. Every constituent is named, ranked and archived, and each score can be re-run live against the site as it stands today.

The Crane Standard

The senior read,
once a week.

Most marketing newsletters are noise on a schedule. This is not that. Once a week I send a short, considered read on the shifts that actually change what you should do, across the AI shift, PPC, technical SEO and analytics. Filtered, weighted and signed off by me before it goes out. The judgement is mine, and now you can hear every edition in my own voice.

Nic CraneFounder, The Crane Consultancy