Google-GeminiNotebook
Google •
Web Crawler
What is Google-GeminiNotebook?
Google says this fetcher requests individual URLs that Gemini Notebook users add as project sources. The full string here is Google's published desktop example; the Chrome version may change. Google lists Google-NotebookLM as the former agent supported until August 2026, so this is a newer token for the same kind of user-supplied source retrieval, not a general-purpose search crawler.
User Agent String
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36 (compatible; Google-GeminiNotebook; +https://developers.google.com/crawling/docs/crawlers-fetchers/google-gemininotebook)
How to Control Google-GeminiNotebook
Block Completely
To prevent Google-GeminiNotebook from accessing your entire website, add this to your robots.txt file:
# Block Google-GeminiNotebook
User-agent: Google-GeminiNotebook
Disallow: /
Block Specific Directories
To restrict access to certain parts of your site while allowing others:
User-agent: Google-GeminiNotebook
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: Google-GeminiNotebook
Crawl-delay: 10
How to Verify Google-GeminiNotebook
Verification Method:
Check source addresses against Google's published user-triggered-fetcher IP ranges; the user-agent alone can be copied.
Check source addresses against Google's published user-triggered-fetcher IP ranges; the user-agent alone can be copied.
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 Google-GeminiNotebook in your application:
Basic Pattern
/Google\-GeminiNotebook/i
Strict Pattern
/^Mozilla\/5\.0 \(X11; Linux x86_64\) AppleWebKit\/537\.36 \(KHTML, like Gecko\) Chrome\/137\.0\.0\.0 Safari\/537\.36 \(compatible; Google\-GeminiNotebook; \+https\:\/\/developers\.google\.com\/crawling\/docs\/crawlers\-fetchers\/google\-gemininotebook\)$/
Flexible Pattern
/Google\-GeminiNotebook[\s\/]?[\d\.]*?/i
Vendor Match
/.*Google.*Google\-GeminiNotebook/i
Implementation Examples
// PHP Detection for Google-GeminiNotebook
function detect_google_gemininotebook() {
$user_agent = $_SERVER['HTTP_USER_AGENT'] ?? '';
$pattern = '/Google\-GeminiNotebook/i';
if (preg_match($pattern, $user_agent)) {
// Log the detection
error_log('Google-GeminiNotebook 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($_SERVER['REQUEST_URI']) . '.html');
exit;
}
return true;
}
return false;
}
# Python/Flask Detection for Google-GeminiNotebook
import re
from flask import request, make_response
def detect_google_gemininotebook():
user_agent = request.headers.get('User-Agent', '')
pattern = r'Google\-GeminiNotebook'
if re.search(pattern, user_agent, re.IGNORECASE):
# Create response with caching
response = make_response()
response.headers['Cache-Control'] = 'public, max-age=3600'
response.headers['X-Robots-Tag'] = 'noarchive'
return True
return False
# Django Middleware
class google_gemininotebookMiddleware:
def __init__(self, get_response):
self.get_response = get_response
def __call__(self, request):
if self.detect_bot(request):
# Handle bot traffic
pass
return self.get_response(request)
// JavaScript/Node.js Detection for Google-GeminiNotebook
const express = require('express');
const app = express();
// Middleware to detect Google-GeminiNotebook
function detect_google_gemininotebook(req, res, next) {
const userAgent = req.headers['user-agent'] || '';
const pattern = /Google\-GeminiNotebook/i;
if (pattern.test(userAgent)) {
// Log bot detection
console.log('Google-GeminiNotebook detected from IP:', req.ip);
// Set cache headers
res.set({
'Cache-Control': 'public, max-age=3600',
'X-Robots-Tag': 'noarchive'
});
// Mark request as bot
req.isBot = true;
req.botName = 'Google-GeminiNotebook';
}
next();
}
app.use(detect_google_gemininotebook);
# Apache .htaccess rules for Google-GeminiNotebook
# Block completely
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} Google\-GeminiNotebook [NC]
RewriteRule .* - [F,L]
# Or redirect to a static version
RewriteCond %{HTTP_USER_AGENT} Google\-GeminiNotebook [NC]
RewriteCond %{REQUEST_URI} !^/static/
RewriteRule ^(.*)$ /static/$1 [L]
# Or set environment variable for PHP
SetEnvIfNoCase User-Agent "Google\-GeminiNotebook" is_bot=1
# Add cache headers for this bot
<If "%{HTTP_USER_AGENT} =~ /Google\-GeminiNotebook/i">
Header set Cache-Control "public, max-age=3600"
Header set X-Robots-Tag "noarchive"
</If>
# Nginx configuration for Google-GeminiNotebook
# Map user agent to variable
map $http_user_agent $is_google_gemininotebook {
default 0;
~*Google\-GeminiNotebook 1;
}
server {
# Block the bot completely
if ($is_google_gemininotebook) {
return 403;
}
# Or serve cached content
location / {
if ($is_google_gemininotebook) {
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_google_gemininotebook) {
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: Google-GeminiNotebook
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: Google-GeminiNotebook
# Blocking AI training bot
Disallow: /
SaaS/Application Configuration
User-agent: Google-GeminiNotebook
Disallow: /app/
Disallow: /api/
Disallow: /dashboard/
Disallow: /settings/
Allow: /
Allow: /pricing/
Allow: /features/
Allow: /docs/
Quick Reference
User Agent Match
Google-GeminiNotebook
Robots.txt Name
Google-GeminiNotebook
Category
ai, other
Respects robots.txt
May not respect
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