Manus-User
Manus AI •
Since 2025
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What is Manus-User?
Manus-User is the user agent for Manus AI's agentic browser, which autonomously browses the web to complete tasks on behalf of users. When users give Manus AI a task that requires web interaction, this bot navigates websites, fills forms, and gathers information autonomously. It represents a growing category of AI agent browsers that go beyond simple content retrieval to perform multi-step web interactions.
User Agent String
Manus-User
How to Control Manus-User
Block Completely
To prevent Manus-User from accessing your entire website, add this to your robots.txt file:
# Block Manus-User
User-agent: Manus-User
Disallow: /
Block Specific Directories
To restrict access to certain parts of your site while allowing others:
User-agent: Manus-User
Disallow: /admin/
Disallow: /private/
Disallow: /wp-admin/
Allow: /public/
Set Crawl Delay
To slow down the crawl rate (note: not all bots respect this directive):
User-agent: Manus-User
Crawl-delay: 10
How to Verify Manus-User
Verification Method:
Check user agent string for Manus-User identifier
Check user agent string for Manus-User identifier
Learn more in the official documentation.
⚠️ AI Training Notice
This bot may collect and use your website content for AI model training. Consider whether you want your content used for this purpose before allowing access.
This bot may collect and use your website content for AI model training. Consider whether you want your content used for this purpose before allowing access.
Detection Patterns
Multiple ways to detect Manus-User in your application:
Basic Pattern
/Manus\-User/iStrict Pattern
/^Manus\-User$/Flexible Pattern
/Manus\-User[\s\/]?[\d\.]*?/iVendor Match
/.*Manus AI.*Manus\-User/iImplementation Examples
// PHP Detection for Manus-User
function detect_manus_user() {
$user_agent = $_SERVER['HTTP_USER_AGENT'] ?? '';
$pattern = '/Manus\\-User/i';
if (preg_match($pattern, $user_agent)) {
// Log the detection
error_log('Manus-User detected from IP: ' . $_SERVER['REMOTE_ADDR']);
// Set cache headers
header('Cache-Control: public, max-age=3600');
header('X-Robots-Tag: noarchive');
// Optional: Serve cached version
if (file_exists('cache/' . md5($_SERVER['REQUEST_URI']) . '.html')) {
readfile('cache/' . md5($_SERVER['REQUEST_URI']) . '.html');
exit;
}
return true;
}
return false;
}
# Python/Flask Detection for Manus-User
import re
from flask import request, make_responsedef detect_manus_user():
user_agent = request.headers.get('User-Agent', '')
pattern = r'Manus-User'
if re.search(pattern, user_agent, re.IGNORECASE):
# Create response with caching
response = make_response()
response.headers['Cache-Control'] = 'public, max-age=3600'
response.headers['X-Robots-Tag'] = 'noarchive'
return True
return False# Django Middleware
class ManusUserMiddleware:
def __init__(self, get_response):
self.get_response = get_response
def __call__(self, request):
if self.detect_bot(request):
# Handle bot traffic
pass
return self.get_response(request)
// JavaScript/Node.js Detection for Manus-User
const express = require('express');
const app = express();// Middleware to detect Manus-User
function detectManusUser(req, res, next) {
const userAgent = req.headers['user-agent'] || '';
const pattern = /Manus-User/i;
if (pattern.test(userAgent)) {
// Log bot detection
console.log('Manus-User detected from IP:', req.ip);
// Set cache headers
res.set({
'Cache-Control': 'public, max-age=3600',
'X-Robots-Tag': 'noarchive'
});
// Mark request as bot
req.isBot = true;
req.botName = 'Manus-User';
}
next();
}app.use(detectManusUser);
# Apache .htaccess rules for Manus-User# Block completely
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} Manus\-User [NC]
RewriteRule .* - [F,L]# Or redirect to a static version
RewriteCond %{HTTP_USER_AGENT} Manus\-User [NC]
RewriteCond %{REQUEST_URI} !^/static/
RewriteRule ^(.*)$ /static/$1 [L]# Or set environment variable for PHP
SetEnvIfNoCase User-Agent "Manus\-User" is_bot=1# Add cache headers for this bot
<If "%{HTTP_USER_AGENT} =~ /Manus\-User/i">
Header set Cache-Control "public, max-age=3600"
Header set X-Robots-Tag "noarchive"
</If>
# Nginx configuration for Manus-User# Map user agent to variable
map $http_user_agent $is_manus_user {
default 0;
~*Manus\-User 1;
}server {
# Block the bot completely
if ($is_manus_user) {
return 403;
}
# Or serve cached content
location / {
if ($is_manus_user) {
root /var/www/cached;
try_files $uri $uri.html $uri/index.html @backend;
}
try_files $uri @backend;
}
# Add headers for bot requests
location @backend {
if ($is_manus_user) {
add_header Cache-Control "public, max-age=3600";
add_header X-Robots-Tag "noarchive";
}
proxy_pass http://backend;
}
}
Should You Block This Bot?
Recommendations based on your website type:
| Site Type | Recommendation | Reasoning |
|---|---|---|
| E-commerce | Limit Access | Protect pricing and inventory data from AI training |
| Blog/News | Consider Blocking | Your content may be used for AI training without compensation |
| SaaS Application | Block | No benefit for application interfaces; preserve resources |
| Documentation | Selective | Allow for public docs, block for internal docs |
| Corporate Site | Limit | Allow for public pages, block sensitive areas like intranets |
Advanced robots.txt Configurations
E-commerce Site Configuration
User-agent: Manus-User
Crawl-delay: 5
Disallow: /cart/
Disallow: /checkout/
Disallow: /my-account/
Disallow: /api/
Disallow: /*?sort=
Disallow: /*?filter=
Disallow: /*&page=
Allow: /products/
Allow: /categories/
Sitemap: https://example.com/sitemap.xml
Publishing/Blog Configuration
User-agent: Manus-User
# Blocking AI training bot
Disallow: /
SaaS/Application Configuration
User-agent: Manus-User
Disallow: /app/
Disallow: /api/
Disallow: /dashboard/
Disallow: /settings/
Allow: /
Allow: /pricing/
Allow: /features/
Allow: /docs/
Quick Reference
User Agent Match
Manus-UserRobots.txt Name
Manus-UserCategory
aiRespects robots.txt
May not respect
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