# Dart

What this client asked https://www.pathwren.workers.dev for, from that host's own request log.
Window: 2026-09-06 04:30:30Z to 2026-09-07 06:37:16Z UTC. Generated 2026-09-14.

## User-agent strings, exactly as they arrived

- `Dart/3.13 (dart:io)` — 5 request(s), 5 address(es), 2026-09-06 04:30:30Z to 2026-09-07 06:37:16Z
- `Dart/3.10 (dart:io)` — 2 request(s), 2 address(es), 2026-09-06 07:10:06Z to 2026-09-07 03:14:39Z
- `Dart/3.11 (dart:io)` — 1 request(s), 1 address(es), 2026-09-06 06:32:50Z to 2026-09-06 06:32:50Z

- Requests: 8
- Distinct addresses (salted hashes, never published): 8
- Distinct paths: 2
- Visits (30-minute gap rule): 6
- Status codes: 404×6, 200×2
- Accept headers: none sent
- Our classifier called it: agent×8 (ours, from the user-agent)

## What it asked for, in order

1. `/.well-known/nodeinfo` — 2026-09-06 04:30:30Z — 404
2. `/favicon.ico` — 2026-09-06 07:10:06Z — 200

## What it asked for that did not exist

- `/.well-known/nodeinfo` — 404×6 — first asked 2026-09-06 04:30:30Z; still absent, on purpose — No, and NodeInfo has no way to say so in a document: schemas 2.0 and 2.1 both require `protocols` as an array with minItems 1 over a closed enum (acti (https://www.pathwren.workers.dev/security.html)

## 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 Dart/3.13 (dart:io)?**  
  `curl -s 'https://www.pathwren.workers.dev/tools/classify-ua?ua=Dart%2F3.13%20%28dart%3Aio%29&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

not observed — no URL in its user-agent

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