ContentKing
ContentKing •
Since 2016
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What is ContentKing?
ContentKing is a real-time SEO auditing and monitoring platform that continuously tracks website changes that could impact search performance. Unlike traditional SEO tools that perform periodic crawls, ContentKing monitors websites 24/7 and immediately alerts users to critical changes or issues. The platform tracks everything from meta data changes to JavaScript rendering issues, making it invaluable for large websites where unauthorized or accidental changes can impact SEO. ContentKing's real-time approach helps catch SEO problems before they affect rankings.
User Agent String
Mozilla/5.0 (compatible; ContentKing/1.0; +https://www.contentkingapp.com)
How to Control ContentKing
Block Completely
To prevent ContentKing from accessing your entire website, add this to your robots.txt file:
# Block ContentKing
User-agent: ContentKing
Disallow: /
Block Specific Directories
To restrict access to certain parts of your site while allowing others:
User-agent: ContentKing
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: ContentKing
Crawl-delay: 10
How to Verify ContentKing
Verification Method:
ContentKing crawler identification
ContentKing crawler identification
Learn more in the official documentation.
Detection Patterns
Multiple ways to detect ContentKing in your application:
Basic Pattern
/ContentKing/i
Strict Pattern
/^Mozilla/5\.0 \(compatible; ContentKing/1\.0; \+https\://www\.contentkingapp\.com\)$/
Flexible Pattern
/ContentKing[\s\/]?[\d\.]*?/i
Vendor Match
/.*ContentKing.*ContentKing/i
Implementation Examples
// PHP Detection for ContentKing
function detect_contentking() {
$user_agent = $_SERVER['HTTP_USER_AGENT'] ?? '';
$pattern = '/ContentKing/i';
if (preg_match($pattern, $user_agent)) {
// Log the detection
error_log('ContentKing 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($_SERVER['REQUEST_URI']) . '.html');
exit;
}
return true;
}
return false;
}
# Python/Flask Detection for ContentKing
import re
from flask import request, make_response
def detect_contentking():
user_agent = request.headers.get('User-Agent', '')
pattern = r'ContentKing'
if re.search(pattern, user_agent, re.IGNORECASE):
# Create response with caching
response = make_response()
response.headers['Cache-Control'] = 'public, max-age=3600'
response.headers['X-Robots-Tag'] = 'noarchive'
return True
return False
# Django Middleware
class ContentKingMiddleware:
def __init__(self, get_response):
self.get_response = get_response
def __call__(self, request):
if self.detect_bot(request):
# Handle bot traffic
pass
return self.get_response(request)
// JavaScript/Node.js Detection for ContentKing
const express = require('express');
const app = express();
// Middleware to detect ContentKing
function detectContentKing(req, res, next) {
const userAgent = req.headers['user-agent'] || '';
const pattern = /ContentKing/i;
if (pattern.test(userAgent)) {
// Log bot detection
console.log('ContentKing detected from IP:', req.ip);
// Set cache headers
res.set({
'Cache-Control': 'public, max-age=3600',
'X-Robots-Tag': 'noarchive'
});
// Mark request as bot
req.isBot = true;
req.botName = 'ContentKing';
}
next();
}
app.use(detectContentKing);
# Apache .htaccess rules for ContentKing
# Block completely
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} ContentKing [NC]
RewriteRule .* - [F,L]
# Or redirect to a static version
RewriteCond %{HTTP_USER_AGENT} ContentKing [NC]
RewriteCond %{REQUEST_URI} !^/static/
RewriteRule ^(.*)$ /static/$1 [L]
# Or set environment variable for PHP
SetEnvIfNoCase User-Agent "ContentKing" is_bot=1
# Add cache headers for this bot
<If "%{HTTP_USER_AGENT} =~ /ContentKing/i">
Header set Cache-Control "public, max-age=3600"
Header set X-Robots-Tag "noarchive"
</If>
# Nginx configuration for ContentKing
# Map user agent to variable
map $http_user_agent $is_contentking {
default 0;
~*ContentKing 1;
}
server {
# Block the bot completely
if ($is_contentking) {
return 403;
}
# Or serve cached content
location / {
if ($is_contentking) {
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_contentking) {
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
User-agent: ContentKing
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: ContentKing
Crawl-delay: 10
Disallow: /wp-admin/
Disallow: /drafts/
Disallow: /preview/
Disallow: /*?replytocom=
Allow: /
SaaS/Application Configuration
User-agent: ContentKing
Disallow: /app/
Disallow: /api/
Disallow: /dashboard/
Disallow: /settings/
Allow: /
Allow: /pricing/
Allow: /features/
Allow: /docs/
Quick Reference
User Agent Match
ContentKing
Robots.txt Name
ContentKing
Category
seo, monitoring
Respects robots.txt
Yes
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