What we tested
Probed live on 23 Aug 2026 against rubric v1. 4 of 5 checks passed.
PROBE-VERIFIEDtier 2 of 3
✓Markdown negotiationAccept: text/markdown
—Markdown twin at a predictable URL/page.md
✓llms.txt/llms.txt
✓API catalogRFC 9727
✓MCP server answers/.well-known/mcp/server-card.json → tools/list
What an agent could do here
Read from the page’s own content, with the wording each was drawn from. Inference is kept separate from tested facts — an agent completing the action is tier 3.
UNVERIFIED
contact“06 - 34 27 58 00”tel:+31634275800
contact“consult@krijtlandhealthcare.nl”mailto:consult@krijtlandhealthcare.nl
contact“Stuur me een bericht!”https://wa.me/31634275800?text=Hoi%20Berechja
book“Maak een afspraak”https://krijtlandhealthcare.nl/afspraak-maken
Context
3,040 sites in the index share the type business, of which 1,936 are transactional.
How we grade
Three tiers. Every listing shows which one it has reached, and when. The rubric.
tier 1Declared
The site says agents are welcome in its robots.txt. A permission, not a capability.
tier 2Probe-verified
We fetched the site and tested each signal ourselves. Dated, repeatable, re-checked on a schedule.
tier 3Behaviourally verified
An agent completed the action end to end — booked, bought, submitted — and it worked.
Own this site?
1 check did not pass when we last looked: Markdown twin at a predictable URL. Each is a small, specific fix; the rubric says exactly what we look for.
Behavioural verification — an agent completing your booking, purchase or contact flow end to end, with the date published here — opens to a small founding cohort first. Leave an email to be in it.
Related verified sites
Athom.AgencyAthom.Agency is a Rotterdam-based Shopify developer and digital agency offering Shopify de
shopify developer workin.spaceOnline platform for rental and booking of meeting rooms, private offices, and coworking de
workspace rental PolitiekPraatPolitiekPraat provides independent analyses, political news, expert blogs, and voting aids
political news site RFP.aiRFP.ai is AI software that generates source-backed draft answers for RFPs and security que
rfp software Avid OrganicsAvid Organics manufactures high-purity specialty chemicals like glycine and glycolic acid
specialty chemicals manufacturer gibeon.iogibeon.io is a digital signage platform that automates content display on screens via inte
digital signage platform Record generated from a live database query. Method: about the index.