llms.txt Adoption Across UK Law Firms
Score comparisons use the most recent audit per firm. Eleven firms could not be matched between the audit and llms.txt datasets and are excluded from the score comparison.
Where llms.txt sits inside Pillar 1 AI Discoverability.
The wider discipline this file belongs to.
The published format and structure for the file.
The long-established crawler directive llms.txt complements.
83.3% of UK law firms have not taken the single most direct action available
Emerging standard, negligible cost, now part of a Google Chrome audit
335 firms · Deduplicated benchmark cohort · June 2026
Only 56 of 335 UK law firms have an llms.txt file in place.
83.3% of UK law firms fail that audit before anyone has visited their site.
279 firms have taken no action to signal AI discoverability through this mechanism. Their content may still be indexed, but AI crawlers have been given no guidance on what to prioritise.
56 firms have the file. The cost of implementing it is negligible and the case only strengthens as the standard matures.
Just 2 firms have implemented the extended version, the most thorough AI discoverability signal currently available.
Firms with llms.txt score 18.7 on Pillar 1 vs 16.8 without, and 48.9 overall vs 45.1.
The gaps are modest today. The file signals machine readability, reduces the work AI agents do to understand a site, and positions a firm ahead of a standard moving from optional to expected.
11 firms could not be matched between datasets and are excluded. Source: LegalVIS 5 Pillar Audit System and AI Visibility Audit, 2026.
Who you are, what you do, and the jurisdictions you operate in.
The service pages you want an agent to read first, each with a short note.
Named solicitors with their specialisms, so agents can attach expertise to individuals.
Case studies, credentials, accreditations and review sources.
Further reading from LegalVIS
Sources and further references
About the researcher
“The legal sector is still early in this transition, and that creates an unusual opportunity. Firms do not need to catch up with an established market yet. They have the chance to help define their position in AI search while competitors are still working out what it means.”
Claire Mullaney, Founder, LegalVIS
Claire founded LegalVIS, the UK’s first AI visibility platform built specifically for the legal sector. She works directly with law firms across the UK and internationally on structured AI visibility, and works closely with LAWorld, the international legal network, on AI visibility strategy.