Yeti
Naver •
Since 2010
Quick Actions
Official Docs
What is Yeti?
Yeti is the web crawler for Naver, South Korea's dominant search engine and web portal. With over 70% market share in South Korea, Naver is more popular than Google in the Korean market. Yeti crawls both Korean and international content, with particular strength in Korean language indexing and understanding. The bot is essential for any website targeting the Korean market, as Naver is the primary discovery mechanism for Korean internet users. Yeti follows international crawling standards while being optimized for Korean language content and cultural context.
User Agent String
Mozilla/5.0 (compatible; Yeti/1.1; +http://naver.me/spd)
How to Control Yeti
Block Completely
To prevent Yeti from accessing your entire website, add this to your robots.txt file:
# Block Yeti
User-agent: Yeti
Disallow: /
Block Specific Directories
To restrict access to certain parts of your site while allowing others:
User-agent: Yeti
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: Yeti
Crawl-delay: 10
How to Verify Yeti
Verification Method:
Verify via Naver's published crawler information
Verify via Naver's published crawler information
Learn more in the official documentation.
Detection Patterns
Multiple ways to detect Yeti in your application:
Basic Pattern
/Yeti/i
Strict Pattern
/^Mozilla/5\.0 \(compatible; Yeti/1\.1; \+http\://naver\.me/spd\)$/
Flexible Pattern
/Yeti[\s\/]?[\d\.]*?/i
Vendor Match
/.*Naver.*Yeti/i
Implementation Examples
// PHP Detection for Yeti
function detect_yeti() {
$user_agent = $_SERVER['HTTP_USER_AGENT'] ?? '';
$pattern = '/Yeti/i';
if (preg_match($pattern, $user_agent)) {
// Log the detection
error_log('Yeti 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($_SERVER['REQUEST_URI']) . '.html');
exit;
}
return true;
}
return false;
}
# Python/Flask Detection for Yeti
import re
from flask import request, make_response
def detect_yeti():
user_agent = request.headers.get('User-Agent', '')
pattern = r'Yeti'
if re.search(pattern, user_agent, re.IGNORECASE):
# Create response with caching
response = make_response()
response.headers['Cache-Control'] = 'public, max-age=3600'
response.headers['X-Robots-Tag'] = 'noarchive'
return True
return False
# Django Middleware
class YetiMiddleware:
def __init__(self, get_response):
self.get_response = get_response
def __call__(self, request):
if self.detect_bot(request):
# Handle bot traffic
pass
return self.get_response(request)
// JavaScript/Node.js Detection for Yeti
const express = require('express');
const app = express();
// Middleware to detect Yeti
function detectYeti(req, res, next) {
const userAgent = req.headers['user-agent'] || '';
const pattern = /Yeti/i;
if (pattern.test(userAgent)) {
// Log bot detection
console.log('Yeti detected from IP:', req.ip);
// Set cache headers
res.set({
'Cache-Control': 'public, max-age=3600',
'X-Robots-Tag': 'noarchive'
});
// Mark request as bot
req.isBot = true;
req.botName = 'Yeti';
}
next();
}
app.use(detectYeti);
# Apache .htaccess rules for Yeti
# Block completely
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} Yeti [NC]
RewriteRule .* - [F,L]
# Or redirect to a static version
RewriteCond %{HTTP_USER_AGENT} Yeti [NC]
RewriteCond %{REQUEST_URI} !^/static/
RewriteRule ^(.*)$ /static/$1 [L]
# Or set environment variable for PHP
SetEnvIfNoCase User-Agent "Yeti" is_bot=1
# Add cache headers for this bot
<If "%{HTTP_USER_AGENT} =~ /Yeti/i">
Header set Cache-Control "public, max-age=3600"
Header set X-Robots-Tag "noarchive"
</If>
# Nginx configuration for Yeti
# Map user agent to variable
map $http_user_agent $is_yeti {
default 0;
~*Yeti 1;
}
server {
# Block the bot completely
if ($is_yeti) {
return 403;
}
# Or serve cached content
location / {
if ($is_yeti) {
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_yeti) {
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: Yeti
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: Yeti
Crawl-delay: 10
Disallow: /wp-admin/
Disallow: /drafts/
Disallow: /preview/
Disallow: /*?replytocom=
Allow: /
SaaS/Application Configuration
User-agent: Yeti
Disallow: /app/
Disallow: /api/
Disallow: /dashboard/
Disallow: /settings/
Allow: /
Allow: /pricing/
Allow: /features/
Allow: /docs/
Quick Reference
User Agent Match
Yeti
Robots.txt Name
Yeti
Category
search
Respects robots.txt
Yes
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