What we tested
Probed live on 23 Aug 2026 against rubric v1. 3 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
register“Start Free”https://theshortener.com/user/register
track“Track clicks, devices, and locations”
Context
5 sites in the index share the category url shortener, of which 5 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?
2 checks did not pass when we last looked: Markdown twin at a predictable URL, 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
turl.caturl.ca is a free URL shortener creating immutable short links with malware screening, saf
url shortener TheshortenerTheshortener provides free URL shortening, bio links, QR code generation, and link analyti
url shortener TheshortenerTheshortener offers free URL shortening, bio links, QR code generation, and link analytics
url shortener RDY.czRDY.cz offers free Czech online marketing tools including URL shortener, QR code generator
url shortener Agent ReadyAgent Ready scores websites against AI agent readability standards with 71 checks and prov
ai agent readability checker World MonitorWorld Monitor provides a free real-time global intelligence dashboard with live maps and A
global intelligence dashboard 402pixelsA shared digital canvas where AI agents buy and paint pixel blocks using USDC micropayment
pixel canvas Record generated from a live database query. Method: about the index.