Baiduspider-image
Baidu •
Since 2003
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What is Baiduspider-image?
Baiduspider-image is Baidu's specialized crawler for indexing images for Baidu Image Search. Given Baidu's dominance in China, this crawler is essential for image visibility in the Chinese market. The bot indexes various image formats and considers factors like image quality, relevance, and surrounding Chinese text. For businesses with visual content targeting Chinese audiences, optimizing for Baiduspider-image is crucial. The crawler can be controlled independently through robots.txt.
User Agent String
Baiduspider-image+(+http://www.baidu.com/search/spider.htm)
How to Control Baiduspider-image
Block Completely
To prevent Baiduspider-image from accessing your entire website, add this to your robots.txt file:
# Block Baiduspider-image
User-agent: Baiduspider-image
Disallow: /
Block Specific Directories
To restrict access to certain parts of your site while allowing others:
User-agent: Baiduspider-image
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: Baiduspider-image
Crawl-delay: 10
How to Verify Baiduspider-image
Verification Method:
Check Baidu's IP ranges
Check Baidu's IP ranges
Learn more in the official documentation.
Detection Patterns
Multiple ways to detect Baiduspider-image in your application:
Basic Pattern
/Baiduspider\-image/i
Strict Pattern
/^Baiduspider\-image\+\(\+http\://www\.baidu\.com/search/spider\.htm\)$/
Flexible Pattern
/Baiduspider\-image[\s\/]?[\d\.]*?/i
Vendor Match
/.*Baidu.*Baiduspider\-image/i
Implementation Examples
// PHP Detection for Baiduspider-image
function detect_baiduspider_image() {
$user_agent = $_SERVER['HTTP_USER_AGENT'] ?? '';
$pattern = '/Baiduspider\\-image/i';
if (preg_match($pattern, $user_agent)) {
// Log the detection
error_log('Baiduspider-image 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($_SERVER['REQUEST_URI']) . '.html');
exit;
}
return true;
}
return false;
}
# Python/Flask Detection for Baiduspider-image
import re
from flask import request, make_response
def detect_baiduspider_image():
user_agent = request.headers.get('User-Agent', '')
pattern = r'Baiduspider-image'
if re.search(pattern, user_agent, re.IGNORECASE):
# Create response with caching
response = make_response()
response.headers['Cache-Control'] = 'public, max-age=3600'
response.headers['X-Robots-Tag'] = 'noarchive'
return True
return False
# Django Middleware
class BaiduspiderimageMiddleware:
def __init__(self, get_response):
self.get_response = get_response
def __call__(self, request):
if self.detect_bot(request):
# Handle bot traffic
pass
return self.get_response(request)
// JavaScript/Node.js Detection for Baiduspider-image
const express = require('express');
const app = express();
// Middleware to detect Baiduspider-image
function detectBaiduspiderimage(req, res, next) {
const userAgent = req.headers['user-agent'] || '';
const pattern = /Baiduspider-image/i;
if (pattern.test(userAgent)) {
// Log bot detection
console.log('Baiduspider-image detected from IP:', req.ip);
// Set cache headers
res.set({
'Cache-Control': 'public, max-age=3600',
'X-Robots-Tag': 'noarchive'
});
// Mark request as bot
req.isBot = true;
req.botName = 'Baiduspider-image';
}
next();
}
app.use(detectBaiduspiderimage);
# Apache .htaccess rules for Baiduspider-image
# Block completely
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} Baiduspider\-image [NC]
RewriteRule .* - [F,L]
# Or redirect to a static version
RewriteCond %{HTTP_USER_AGENT} Baiduspider\-image [NC]
RewriteCond %{REQUEST_URI} !^/static/
RewriteRule ^(.*)$ /static/$1 [L]
# Or set environment variable for PHP
SetEnvIfNoCase User-Agent "Baiduspider\-image" is_bot=1
# Add cache headers for this bot
<If "%{HTTP_USER_AGENT} =~ /Baiduspider\-image/i">
Header set Cache-Control "public, max-age=3600"
Header set X-Robots-Tag "noarchive"
</If>
# Nginx configuration for Baiduspider-image
# Map user agent to variable
map $http_user_agent $is_baiduspider_image {
default 0;
~*Baiduspider\-image 1;
}
server {
# Block the bot completely
if ($is_baiduspider_image) {
return 403;
}
# Or serve cached content
location / {
if ($is_baiduspider_image) {
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_baiduspider_image) {
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 | Allow | Essential for product visibility in search results |
| Blog/News | Allow | Increases content reach and discoverability |
| SaaS Application | Block | No benefit for application interfaces; preserve resources |
| Documentation | Allow | Improves documentation discoverability for developers |
| Corporate Site | Allow | Allow for public pages, block sensitive areas like intranets |
Advanced robots.txt Configurations
E-commerce Site Configuration
User-agent: Baiduspider-image
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: Baiduspider-image
Crawl-delay: 10
Disallow: /wp-admin/
Disallow: /drafts/
Disallow: /preview/
Disallow: /*?replytocom=
Allow: /
SaaS/Application Configuration
User-agent: Baiduspider-image
Disallow: /app/
Disallow: /api/
Disallow: /dashboard/
Disallow: /settings/
Allow: /
Allow: /pricing/
Allow: /features/
Allow: /docs/
Quick Reference
User Agent Match
Baiduspider-image
Robots.txt Name
Baiduspider-image
Category
search
Respects robots.txt
Yes
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