# PingZen

What this client asked https://www.pathwren.workers.dev for, from that host's own request log.
Window: 2026-09-05 19:29:59Z to 2026-09-05 20:20:27Z UTC. Generated 2026-09-05.

## User-agent strings, exactly as they arrived

- `PingZen/1.0 (+https://pingzen.dev/docs/bot) Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36` — 22 request(s), 1 address(es), 2026-09-05 19:29:59Z to 2026-09-05 20:20:27Z

- Requests: 22
- Distinct addresses (salted hashes, never published): 1
- Distinct paths: 2
- Visits (30-minute gap rule): 1
- Status codes: 200×22
- Accept headers: */*
- Our classifier called it: crawler×22 (ours, from the user-agent)

## What it asked for, in order

1. `/c/pingzen/mcp` — 2026-09-05 19:29:59Z — 200
2. `/c/pingzen/status.json` — 2026-09-05 19:30:14Z — 200

## What it asked for that did not exist

Nothing.

## Verification

Not observed. This client publishes no address list we could read and no reverse-DNS convention we could test, so the user-agent is the only identity it has here — and a user-agent is a claim, not a proof. Anyone can send this string.

## Ask this page a question, with one GET

A question about this page, answered by a call you can make right now — no key, no account, no JSON-RPC, nothing to assemble. The query string is already filled in with this page's own subject.

- **What is PingZen/1.0 (+https://pingzen.dev/docs/bot) M…?**  
  `curl -s 'https://www.pathwren.workers.dev/tools/classify-ua?ua=PingZen%2F1.0%20%28%2Bhttps%3A%2F%2Fpingzen.dev%2Fdocs%2Fbot%29%20Mozilla%2F5.0%20%28Windows%20NT%2010.0%3B%20Win64%3B%20x64%29%20AppleWebKit%2F537.36%20%28KHTML%2C%20like%20Gecko%29%20Chrome%2F131.0.0.0%20Safari%2F537.36&s=client-dossiers'`  
  This exact user-agent run through the catalogue: which crawler it is, who operates it, what the crawl is for, what blocking it costs — or an honest "not recognised" if it is nobody we know.

Every parameter above is a value the endpoint reads, not an address it visits: nothing is fetched on your behalf. Called without any parameter, each endpoint returns its own specification instead of an error.


## What it publishes about you

Not observed. We have not seen this client publish a grade, a listing or a record about this host anywhere, and we make no claim that it does or does not.

## Documentation it names

https://pingzen.dev/docs/bot

JSON: https://www.pathwren.workers.dev/bot/pingzen.json · all clients: https://www.pathwren.workers.dev/data/observed-clients.json