What we tested
Probed live on 23 Aug 2026 against rubric v1. 2 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“+386 40 323 311”tel:+38640323311
contact“info@creative37.com”mailto:info@creative37.com
contact“Pofočkajte se”kontakt
Context
28 sites in the index share the category web development agency, of which 7 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?
3 checks did not pass when we last looked: Markdown twin at a predictable URL, llms.txt, MCP server answers. 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
EvensixEvensix is a web development agency specializing in Sanity powered headless CMS, Next.js,
web development agency Marktplatz.ioMarktplatz.io is a web and app development agency in Lüneburg offering custom websites, ap
web development agency Custom Service SolutionsCustom Service Solutions provides professional website development, AI applications, chatb
web development agency CCDesign.grCCDesign.gr offers custom websites, UI/UX design, and technical SEO services focused on pe
web development agency DevBoysDevBoys develops custom web applications, e-shops, and websites across the Czech Republic
web development agency Roboto StudioRoboto Studio is a web development agency specializing in Next.js, Sanity CMS, Contentful,
web development agency Record generated from a live database query. Method: about the index.