# B4travel 電話卡銷售點及速度測試

> Probe-verified (tier 2 of 3). Last checked 2026-08-23. 0 of 5 capability checks passed.

- host: locations.b4travel.shop
- url: https://locations.b4travel.shop/
- category: travel sim card retail
- type: directory
- locations: Hong Kong, Hong Kong SAR
- language: zh-Hant

## Probe-verified · tier 2 of 3

Probed live on 2026-08-23 against rubric v1. 0 of 5 checks passed.

- fail — Markdown negotiation
- fail — Markdown twin at a predictable URL
- fail — llms.txt
- fail — API catalog
- fail — MCP server answers

## Unverified actions

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.

- **read** — "香港買旅行電話卡門市一覽"

## Summary

B4travel provides a directory of over 30 authorized retail locations in Hong Kong selling physical and eSIM travel phone cards for 15+ countries with speed test data.

## Context

351 sites in this index share the type "directory"; 188 are transactional.

## How we grade

- tier 1 — **Declared**: The site says agents are welcome in its robots.txt. A permission, not a capability.
- tier 2 — **Probe-verified** (this site): We fetched the site and tested each signal ourselves. Dated, repeatable, re-checked on a schedule.
- tier 3 — **Behaviourally verified**: An agent completed the action end to end — booked, bought, submitted — and it worked.

## About this record

Known-Good probes sites live and publishes what was tested and when.
Method: https://knowngood.sh/about.md · Rubric: https://knowngood.sh/benchmark