Coding agents

Cursor

Cursor is a bot that pulls documentation and examples while an AI writes code. Cursor is an AI coding agent that helps write, edit, and understand code. No IP range list or reverse-DNS convention is published, so a request carrying this user agent cannot be proven genuine and a robots.txt rule alone will not stop a forgery.

CursorClaim onlyrobots.txt:No policy

Live check

Verify an IP that claimed to be Cursor

No operator check exists for Cursor. This still shows what the address really is.

Reference

Cursor at a glance

Reference data for the Cursor crawler
User agentCursor

Token only: match on the substring.

OperatorCursor
PurposeCoding agents
Respects robots.txtNo policy
Verification methodClaim onlyNone published, user agent only

No IP range file and no reverse-DNS convention have been published for this agent. The user-agent string is the only signal, and any client can send it, so treat a match as a claim rather than proof.

Crawl patternNot published
Robots.txt tokensCursor
Operator documentationNone published

Cursor is an AI coding agent that helps write, edit, and understand code.

robots.txt

Allow or block Cursor

Paste one at the root of your domain. Rules are per token.

Block Cursor
User-agent: Cursor
Disallow: /
Allow Cursor
User-agent: Cursor
Allow: /
Allow, except the pages you never want quoted
User-agent: Cursor
Allow: /
Disallow: /account/
Disallow: /checkout/
Disallow: /search

Edit the Disallow paths to match your own URLs.

What blocking actually costs you

Blocking Cursor mainly affects developers reading your documentation through an AI tool. Most sites want that traffic.

Build a file for every crawler

FAQ

Cursor questions

What is Cursor?

Cursor is a bot that pulls documentation and examples while an AI writes code. Cursor is an AI coding agent that helps write, edit, and understand code. No IP range list or reverse-DNS convention is published, so a request carrying this user agent cannot be proven genuine and a robots.txt rule alone will not stop a forgery.

Does Cursor respect robots.txt?

Not documented. No operator statement says whether Cursor reads robots.txt, so add the rule but verify in your logs that the requests actually stop.

How do I verify a request really came from Cursor?

You cannot, at least not from the request itself. No IP range file and no reverse-DNS convention have been published for this agent. The user-agent string is the only signal, and any client can send it, so treat a match as a claim rather than proof. Compare the source IP against hosting and datacenter ranges instead, and rate limit anything that behaves like a crawler.

How do I block Cursor?

Add the Cursor token to robots.txt with Disallow: /. If the crawler ignores robots.txt, match the user agent at your CDN or reverse proxy and return 403 there instead.

Will blocking Cursor hurt my search rankings?

Blocking Cursor mainly affects developers reading your documentation through an AI tool. Most sites want that traffic.

    Cursor (Cursor): User Agent, IP Verification & robots.txt | IPScanner