What is Manus-User?
Manus-User is a browser-enabled AI agent operated by Butterfly Effect, a company based in China. It autonomously navigates websites, interprets content, and carries out multi-step tasks for human users. You can set up Agent Analytics to see when Manus-User visits your website.
Category
| Example User Agent | Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/154.0.0.0 Safari/537.36; Manus-User/1.0 |
| Operated By | Butterfly Effect |
| Identity |
Verified
Verified Identification
Requests claiming to be this agent can be authenticated using its published verification method. |
| Triggered By | User action |
| Used for AI Model Training | Not expected |
| Affects AI Chat & Search Visibility | Possibly |
| Expected To Follow Robots.txt | No |
Why Is Manus-User Visiting My Website?
A user gave Manus-User a task that your site may help complete, such as researching a product, comparing options, or filling out a form. It likely reached your site through links or search results, much like a person would.
Should I Block Manus-User?
Usually not. Manus-User browses on behalf of a person trying to read, compare, or buy something on your site. Blocking it may prevent that person from completing the task and send them elsewhere. It does not affect traditional search rankings. For context, 9% of the top websites we track currently have robots.txt rules for Manus-User.
Insights for Manus-User
As of October 29, 2026, this data reflects agent visits measured across thousands of websites using Agent Analytics, combined with daily scans of the top 1000 websites and their robots.txt files.
Robots.txt Compliance
Country of Origin
Robots.txt Blocked Percentage
Frequently Asked Questions
What Traffic Patterns Should I Expect From Manus-User?
Manus-User operates a real browser, loading pages, running JavaScript, setting cookies, and navigating multi-step flows much like a person would. Because its route reflects the task it was given rather than a fixed crawl order, visits may look irregular. A session may pause while the agent processes a page, then continue somewhere unexpected.
Does Manus-User Follow Robots.txt Rules?
No. Manus-User is not expected to follow robots.txt rules, so a disallow rule only communicates your preference. Enforce the block with firewall or server rules, then use Agent Analytics to verify that its requests stop.
Is Manus-User Used for AI Model Training?
Not ordinarily. Manus-User is not categorized as an AI training scraper or data provider, so AI model training is not its expected purpose.
Does Blocking Manus-User Affect AI Search or Citations?
Blocking Manus-User can prevent people using the agent from accessing or acting on your website. It does not directly control whether your pages appear in an AI search index.
Does Manus-User Access Private Content?
Possibly, if a user grants access. Manus-User operates a real browser session, so when someone signs in through it, the agent can see anything available to that account. Without credentials, it can reach only what an anonymous visitor can.
How Can I Verify a Request From Manus-User?
Agent Analytics tracks visits from Manus-User and every other known AI agent, crawler, and scraper, then authenticates each visit using Manus-User's published verification method. You can also check your server logs for requests whose user-agent string contains "Manus-User". Look for browser-like sessions that move through pages faster or more methodically than a typical person. A matching log entry alone is not proof because any bot can claim to be Manus-User.