# www.topbrandsplc.com — industrial and trade supplies — 2 of 5

Home > Browse > By type > business > www.topbrandsplc.com

> Probe-verified (tier 2 of 3). Last checked 2026-09-28. 2 of 5 capability checks passed. 2 unknown.

- host: www.topbrandsplc.com
- url: https://www.topbrandsplc.com/
- category: industrial and trade supplies
- type: business
- language: en

## Probe-verified · tier 2 of 3

Probed live on 2026-09-28 against rubric v1.2. 2 of 5 checks passed. 2 unknown.

- UNKNOWN — Markdown negotiation (`Accept: text/markdown`)
- UNKNOWN — Markdown twin at a predictable URL (`/page.md`)
- PASS — llms.txt (`/llms.txt`)
- FAIL — API catalog (`RFC 9727`)
- PASS — MCP server card answers (`/.well-known/mcp/server-card.json → tools/list`)

MCP tools (from tools/list on 2026-09-28, served from d6db18-c7.myshopify.com): get_checkout, create_checkout, update_checkout, complete_checkout, cancel_checkout, get_cart, create_cart, update_cart, cancel_cart, get_order, search_catalog, lookup_catalog, get_product

## 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.

- **buy** — "" → `https://d6db18-c7.myshopify.com/api/ucp/mcp`

## Summary

Global supplier of new PLC and DCS parts including brands like Bently Nevada, Honeywell, ABB, and Siemens, offering vast inventory and rapid delivery from China with competitive prices and budget-saving solutions.

## Context

1061 sites in this index share the category "industrial and trade supplies"; 530 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

How we found this site: probe discovery. This site didn't declare agent access — we found it by checking the open web. Everything above was tested the same way, against the same rubric, on the date shown. [How we choose what to check, and how to opt out](https://knowngood.sh/bot)

## Where this sits

- business: https://knowngood.sh/type/business
- industrial and trade supplies: https://knowngood.sh/category/industrial-trade-supplies
- shopify: https://knowngood.sh/platform/shopify
- Browse: https://knowngood.sh/browse
- Rubric: https://knowngood.sh/benchmark