What is GoogleOther?
GoogleOther is a generic crawler used by various Google product teams for publicly accessible web crawling outside of Google Search. Introduced to provide transparency about Google's diverse crawling activities, this bot represents Google's R&D teams, product development, and other initiatives that need web data. The crawler might be used for research projects, new product development, or experimental features. By using GoogleOther, Google provides website owners with visibility into non-search related crawling while maintaining the ability to control access through robots.txt.
User Agent String
GoogleOther
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How to Control GoogleOther
Block Completely
To prevent GoogleOther from accessing your entire website, add this to your robots.txt file:
User-agent: GoogleOther
Disallow: /
Block Specific Directories
To restrict access to certain parts of your site while allowing others:
User-agent: GoogleOther
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: GoogleOther
Crawl-delay: 10
How to Verify GoogleOther
Verification Method:
Same verification as Googlebot
Learn more in the official documentation .
Detection Patterns
Multiple ways to detect GoogleOther in your application:
Basic Pattern
/GoogleOther/i
Strict Pattern
/^GoogleOther$/
Flexible Pattern
/GoogleOther[\s\/]?[\d\.]*?/i
Vendor Match
/.*Google.*GoogleOther/i
Implementation Examples
PHP
Python
JavaScript
.htaccess
Nginx
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function detect_googleother() {
$user_agent = $_SERVER['HTTP_USER_AGENT'] ?? '';
$pattern = '/GoogleOther/i';
if (preg_match($pattern, $user_agent)) {
// Log the detection
error_log('GoogleOther 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($_SERVER['REQUEST_URI']) . '.html');
exit;
}
return true;
}
return false;
}
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import re
from flask import request, make_response
def detect_googleother():
user_agent = request.headers.get('User-Agent', '')
pattern = r'GoogleOther'
if re.search(pattern, user_agent, re.IGNORECASE):
# Create response with caching
response = make_response()
response.headers['Cache-Control'] = 'public, max-age=3600'
response.headers['X-Robots-Tag'] = 'noarchive'
return True
return False
class GoogleOtherMiddleware:
def __init__(self, get_response):
self.get_response = get_response
def __call__(self, request):
if self.detect_bot(request):
# Handle bot traffic
pass
return self.get_response(request)
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const express = require('express');
const app = express();
// Middleware to detect GoogleOther
function detectGoogleOther(req, res, next) {
const userAgent = req.headers['user-agent'] || '';
const pattern = /GoogleOther/i;
if (pattern.test(userAgent)) {
// Log bot detection
console.log('GoogleOther detected from IP:', req.ip);
// Set cache headers
res.set({
'Cache-Control': 'public, max-age=3600',
'X-Robots-Tag': 'noarchive'
});
// Mark request as bot
req.isBot = true;
req.botName = 'GoogleOther';
}
next();
}
app.use(detectGoogleOther);
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RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} GoogleOther [NC]
RewriteRule .* - [F,L]
RewriteCond %{HTTP_USER_AGENT} GoogleOther [NC]
RewriteCond %{REQUEST_URI} !^/static/
RewriteRule ^(.*)$ /static/$1 [L]
SetEnvIfNoCase User-Agent "GoogleOther" is_bot=1
<If "%{HTTP_USER_AGENT} =~ /GoogleOther/i">
Header set Cache-Control "public, max-age=3600"
Header set X-Robots-Tag "noarchive"
</If>
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map $http_user_agent $is_googleother {
default 0;
~*GoogleOther 1;
}
server {
if ($is_googleother) {
return 403;
}
location / {
if ($is_googleother) {
root /var/www/cached;
try_files $uri $uri.html $uri/index.html @backend;
}
try_files $uri @backend;
}
location @backend {
if ($is_googleother) {
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
Optional
Evaluate based on bandwidth usage vs. benefits
Blog/News
Allow
Increases content reach and discoverability
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
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User-agent: GoogleOther
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
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User-agent: GoogleOther
Crawl-delay: 10
Disallow: /wp-admin/
Disallow: /drafts/
Disallow: /preview/
Disallow: /*?replytocom=
Allow: /
SaaS/Application Configuration
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User-agent: GoogleOther
Disallow: /app/
Disallow: /api/
Disallow: /dashboard/
Disallow: /settings/
Allow: /
Allow: /pricing/
Allow: /features/
Allow: /docs/
Quick Reference
User Agent Match
GoogleOther
Robots.txt Name
GoogleOther
Category
other
Respects robots.txt
Yes