# Rex (rex.at): agent-readiness 37/100, grade F

> Rank 851 of 1000 on Qomvia (rubric v2.3.0). Last scanned 2026-09-30T05:30:17.174Z. Page: https://qomvia.com/site/rex-at  JSON: https://qomvia.com/api/score/rex-at

## Summary

{
  "known": false,
  "confidence": null,
  "summary": null,
  "offerings": [],
  "audience": null,
  "geography": null,
  "strengths": [],
  "unknowns": [
    "The primary business activities of this company.",
    "The specific services or products offered.",
    "Its target customer base.",
    "Its geographical operating areas.",
    "Its market position and competitors."
  ],
  "alternatives": [],
  "business": null,
  "competitors": []
}

## Score by group
- Machine access: 22/24
- Content legibility: 10/26
- Discovery surface: 0/20
- Identity & policy: 0/12
- Agent-facing performance: 5/8
- Agent protocols: 0/10
Failing checks:
- [blocker] No discoverable sitemap
- [blocker] No llms.txt
- [blocker] The site does not say who it is
- [blocker] No API or feed to read
- [blocker] No MCP endpoint to call

## FAQ
Q: Is Rex readable by AI agents?
A: Rex (rex.at) scores 37 out of 100 for agent readiness, grade F, measured today, on 30.09.2026. 0 of 3 agent classes we test can use the site, and 5 checks currently block agents outright.

Q: What stops agents from using rex.at?
A: The heaviest problems are: No discoverable sitemap; No llms.txt; The site does not say who it is; No API or feed to read; No MCP endpoint to call. Each one is scored from a public HTTP response, and the fix for each is listed in the signed-in report.

Q: How is the Rex agent-readiness score calculated?
A: Qomvia fetches public pages of rex.at as an AI agent would and runs the core checks every site gets across 6 groups: Machine access, Content legibility, Discovery surface, Identity & policy, Agent-facing performance, Agent protocols. Checks are weighted by how much an agent loses when they fail, and the score is expressed out of 100.

Q: How often is this score updated?
A: Public scores are re-checked when the site is re-scanned; tracked domains are re-scanned weekly and their owners are alerted when a check regresses. This page shows the scan from today, on 30.09.2026.

## Related
- Leaderboard: https://qomvia.com/leaderboard
- Score another site: https://qomvia.com/