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
read“Odkryj świat muzyki na naszym blogu”
Context
7 sites in the index share the category music blog.
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, API catalog, 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
Barkham GrooveBarkham Groove is a music blog offering music discovery, reviews, and culture content.
music blog desdemona.com.plDesdemona is a blog about music and instruments offering articles on playing, listening, a
music blog discopolo.net.plDiscopolo.net.pl is a Polish music portal offering information, analyses, and news about m
music blog it-charts.itIt-charts.it is a collective blog offering in-depth articles on music, artists, and charts
music blog mediapias.frMediapias.fr is a collective blog providing analyses, news, and reflections on independent
music blog Orbit SignalOrbit Signal is a Polish platform aggregating data on space sector companies, satellites,
space sector data platform GetName.plGetName.pl is a marketplace to browse and buy premium .pl domains with SEO metrics and auc
domain marketplace Record generated from a live database query. Method: about the index.