# Claude-Web

> An earlier Anthropic token for user-facing web access, superseded by Claude-User and Claude-SearchBot. Kept here because it appears in most published robots.txt templates.

| field | value |
|---|---|
| operator | Anthropic |
| category | AI search crawlers |
| robots.txt token | `Claude-Web` |
| user-agent contains | `Claude-Web` |
| robots.txt | control token only — no crawler |
| verify by | no published verification method |
| published IP ranges | none published |
| prefixes mirrored | 0 IPv4 / 0 IPv6 |
| operator docs | https://support.anthropic.com/en/articles/8896518 |
| last reviewed | 2026-09-14 |

## What blocking it costs you

None in practice. Retain the rule; expect no traffic.

## Full user-agent string

```
Mozilla/5.0 (compatible; Claude-Web/1.0)
```

## Block it

```
User-agent: Claude-Web
Disallow: /
```

## Allow it

```
User-agent: Claude-Web
Allow: /
```

## 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.

- **How do I prove a request really is Claude-Web?**  
  `curl -s 'https://www.pathwren.workers.dev/tools/verification-methods?crawler=claude-web&s=client-dossiers'`  
  The verification method its operator actually publishes — published IP ranges, reverse DNS, or nothing at all — and the mirror of it on this host.

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.

JSON: https://www.pathwren.workers.dev/crawler/claude-web.json · index: https://www.pathwren.workers.dev/llms.txt