Cursor Agent
SafeUser-agent: Cursor
Category: AI & LLM Bots
SEO impact if blocked: 2/10
Anysphere
1 crawler operated by Anysphere
Who Anysphere is, for site owners
Anysphere operates 1 crawler in our directory, filed under AI & LLM Bots. Its crawl behaviour is rated safe.
Blocking Anysphere carries an SEO impact score of 2/10. Blocking impact is rated: Low - No SEO ranking impact.
Our recommendation for Anysphere: Generally safe to allow; provides legitimate crawling value.
Anysphere at a glance
| Operator | Anysphere |
|---|---|
| Crawler in directory | 1 |
| Categories | AI & LLM Bots |
| SEO impact if blocked | 2/10 |
| Crawl behaviour | 1 rated safe |
Crawler operated by Anysphere
What Anysphere's crawlers are for
Anysphere runs 1 crawler in our database. Grouped by the job each one does:
- a user-triggered agent:
Cursor
The highest-priority token is Tier 3. That makes Anysphere a lower-priority operator for most sites: worth a deliberate decision, but rarely the one that decides your visibility.
How site owners treat Anysphere
How often site owners write rules for Anysphere's tokens, from our own robots.txt study of the Tranco top 10,000:
| Token | Files naming it | Files blocking it |
|---|---|---|
Cursor | 16 (0.3%) | Not measured |
A Anysphere token can be blocked without being named, through a User-agent: * group with Disallow: /, so its blocking share can be higher than its naming share.
All counts come from 5,583 valid files fetched October 20, 2026.
Writing one policy for Anysphere
A robots.txt file cannot say "Anysphere"; it can only name Anysphere's tokens, one group at a time. With a single token, one group is the whole policy.
# One token controls everything Anysphere fetches through it
User-agent: Cursor
Disallow: /private/
Allow: /- Decide per job, not per company. Training, search and user-triggered fetching have different trade-offs, even from the same operator.
- Name every token you mean. A token you leave out follows
User-agent: *. - Repeat shared rules. A named group ignores the
*group, so copy anyDisallowlines you still want it to obey. - Verify from outside. Run the website crawlability test after any change to see the result for each Anysphere token, including firewall refusals.
Test yourself: does User-agent: Anysphere block all of Anysphere's crawlers?
No. robots.txt matches crawler tokens, not company names. Use the token Cursor.
Test yourself: if you block one Anysphere token, are the others blocked too?
No. Each token is read separately. Blocking one leaves the rest following whatever group applies to them.
Each Anysphere crawler, explained
A one-paragraph brief for every Anysphere token in our database, covering what it does, how it treats robots.txt and how often large sites write rules for it:
- Cursor Agent (
Cursor, Tier 3): a user-triggered agent that fetches a page when a person asks an assistant or app to open it. Rated safe. Cursor Agent's operator does not clearly document how it treats robots.txt. Write the Cursor Agent rule anyway, then confirm in your logs that its requests stop. 0.3% of top-site robots.txt files name it.
Common mistakes with Anysphere's crawlers
The errors we see most often with Anysphere's crawlers in the files and firewalls we test:
- Assuming a robots.txt rule will stop Anysphere's crawlers. User-triggered fetches act for a person, and some operators say robots.txt may not apply to them. Check the operator's statement above.
- Blocking Anysphere's crawlers as if it were a bulk crawler. It fetches one page because a person asked; blocking it means that person's assistant cannot read your page.
- Counting Anysphere's crawlers visits as crawl volume. Each request maps to a real user question, which makes the paths it requests a useful signal of what people ask about you.
All three hide inside a file that looks correct, so check Anysphere's crawlers from outside after every change.
What our own data shows about Anysphere
Everything below comes from the AI Crawler Check bot database and our two most recent robots.txt scans of the Tranco top 10,000, not from Anysphere's marketing. Anysphere has one token in our database, so the whole picture fits in one place.
Cursor in our records
We first recorded Cursor on September 22, 2026. We could not find a page where Anysphere names it, so treat the token as reported rather than documented. Cursor is outside our tracked token set, but 16 of 5,583 top-site files already name it, which is enough to show owners treat it as a real crawler.
Among the 104 AI and LLM crawlers in our database, Cursor sits 96th by priority (Tier 3), level with AIWebIndex-Agent, alphalens-bot, amazon-QBusiness, Anomura. 81 of the 104 share its safe rating. Other operators with a crawler that fetches a page when a person asks an assistant or app to open it: ChatGPT Agent (OpenAI, Tier 1), ChatGPT Operator (OpenAI, Tier 1), ChatGPT-User (OpenAI, Tier 1), ChatGPT-User/2.0 (OpenAI, Tier 1), Claude-SearchBot (Anthropic, Tier 1). A policy for Cursor is usually a policy for these too.
A decision record for Cursor
Teams that review crawlers once a quarter keep one short entry per token, so anyone can see why a rule exists and when it was last checked. Filled in from our data, the Cursor entry reads:
- Operator and job: Anysphere; it fetches a page when a person asks an assistant or app to open it.
- Priority and behaviour: Tier 3, rated safe, blocking impact low.
- Suggested starting point: Allow by default; revisit if it costs you bandwidth.
- Enforcement: Cursor's operator does not clearly document how it treats robots.txt. Write the Cursor rule anyway, then confirm in your logs that its requests stop.
User-agent: Cursor
Allow: /Paste the line into the validator with one of your own URLs before it goes live. Revisit the Cursor entry once a quarter, or when Anysphere publishes a new token next to it.
Checking Cursor on your own site
Because Anysphere runs only Cursor in our records, one check covers the whole operator. Search your access logs for the string Cursor over the last 30 days, note how many requests it made and which paths it asked for, then compare that with what your robots.txt allows. Anysphere publishes no page about the crawler that we could find, so judge it by the requests you actually see rather than by its name. A Tier 3 crawler rated safe rarely needs more than a quarterly look, and our log checker does the counting for you.
How top sites treat Anysphere's crawlers
From our robots.txt study of the Tranco top 10,000 (5,583 valid files, fetched October 20, 2026):
None of the tokens for Anysphere's crawlers is tracked by name in our study. For scale, 20.1% of top-site files block at least one AI training crawler and 4.3% refuse every unnamed crawler with User-agent: * and Disallow: /, which would catch Anysphere's crawlers too.
More questions about Anysphere
- Will blocking Anysphere affect my Google rankings?
- Only if one of its tokens is a Google search crawler. None of Anysphere's tokens are Googlebot, so classic Google rankings are unaffected.
- How quickly does a robots.txt change take effect for Anysphere?
- Crawlers cache robots.txt, commonly for up to a day. Expect a change to apply within about 24 hours, and confirm it in your logs.
- Can I allow Anysphere on some sections and block it on others?
- Yes. Inside the group for
Cursor, addDisallowlines for the paths to keep private andAllowlines for exceptions. The longest matching rule wins. - Does blocking Anysphere delete content it already collected?
- No. robots.txt only controls future visits. For content already collected, check whether Anysphere offers a removal or opt-out process.
- Is a firewall block better than robots.txt for Anysphere?
- A firewall enforces the decision, while robots.txt asks politely. Many operators recommend robots.txt because blocking their IPs can stop them reading your rules at all. Use robots.txt first, and add a firewall rule only if requests continue.
A five-minute Anysphere review
- Confirm the token. Compare the user-agent in your logs with the tokens listed on this page. A close spelling is not the same crawler.
- Decide the outcome per crawler. Use the briefs above to choose allow, limit or block for each token.
- Write the group. Add or edit one
User-agentgroup per decision and repeat any shared rules inside it. - Publish and wait. Allow about a day for crawlers to fetch the new file.
- Confirm the result. Check your logs, then run the AI crawler checker to see the outcome from outside, including any firewall layer.
How to block or allow Anysphere in robots.txt
This rule covers the single crawler Anysphere operates. Add it to the robots.txt file at the root of your domain.
Block Anysphere completely
User-agent: Cursor
Disallow: /
Allow Anysphere explicitly
User-agent: Cursor
Allow: /
These Anysphere rules ask; they do not enforce. If a Anysphere token ignores them, block it at the server or CDN. Paths are case-sensitive, and each rule matches the token, not the full user-agent string.
Frequently asked questions about Anysphere
What crawler does Anysphere run?
Anysphere operates 1 crawler in our directory: Cursor Agent (user-agent Cursor).
Should I block Anysphere?
Generally safe to allow; provides legitimate crawling value. The SEO impact score for blocking is 2/10, where 10 means blocking costs you the most visibility.
How do I block Anysphere in robots.txt?
Add the following to robots.txt at your domain root: User-agent: Cursor then Disallow: /.
Does blocking Anysphere hurt my search rankings?
Blocking impact is rated: Low - No SEO ranking impact. Google's own ranking crawler is Googlebot, which this operator does not run, so blocking Anysphere does not by itself remove you from Google's index. What it can change is whether AI assistants and analytics tools can read your pages.