---
schema_version: "newruntime-reader-dossiers-v1"
type: "reader_dossier"
slug: "claude-user"
kind: "ai_answer"
operator: "Anthropic"
researched_at: "2026-10-23"
confidence: "high"
json_url: "https://newruntime.com/readers/claude-user.json"
canonical_url: "https://newruntime.com/readers/claude-user/"
---

# Claude-User

> Retrieves websites when a Claude user asks a question that requires them (user-initiated fetches).

## Dossier

- Kind: AI search & answer engines
- Operator: Anthropic (https://www.anthropic.com/)
- Documentation: https://support.claude.com/en/articles/8896518-does-anthropic-crawl-data-from-the-web-and-how-can-site-owners-block-the-crawler
- robots.txt tokens: Claude-User
- Feeds: live answer fetch
- Respects robots.txt: Yes, per its documentation. Anthropic states its bots honor robots.txt; disallowing Claude-User blocks retrieval for user queries and may reduce visibility in user-directed search.
- Verification: Published IP ranges (https://claude.com/crawling/bots.json)
- Labels matched in our logs: claude-user

## Why it matters to New Runtime (our interpretation)

A hit means a Claude user or agent pulled a New Runtime page into a live answer right now.

## Observed behaviour

- Baseline 2026-10-23 (93-day window): 118 requests on 14 days; first seen 2026-07-24, last seen 2026-10-21; Returning.
- Live numbers: https://newruntime.com/bot-traffic-history.json and https://newruntime.com/crawler-journeys.json

## Sources

- https://support.claude.com/en/articles/8896518-does-anthropic-crawl-data-from-the-web-and-how-can-site-owners-block-the-crawler

Identity: A family name is what a client claims in its user agent. It is verified only when its request came from the operator's published IP ranges or passed forward-confirmed reverse DNS, as reported per family in /crawler-journeys.json. Anyone can claim any name.

All dossiers: https://newruntime.com/readers.md