What is Rogerbot?
Rogerbot is Moz's specialized crawler designed specifically for their Moz Pro customers to perform detailed site audits. Unlike DotBot which crawls the general web, Rogerbot focuses on deep analysis of specific websites when requested by Moz Pro users. The bot identifies technical SEO issues, crawl errors, duplicate content, and site structure problems. It provides actionable insights for SEO optimization, making it a valuable tool for technical SEO audits. Rogerbot only crawls sites that are explicitly added to Moz Pro campaigns by their owners or authorized users.
User Agent String
rogerbot/1.0 (http://moz.com/help/pro/rogerbot-crawler)
Copy
How to Control Rogerbot
Block Completely
To prevent Rogerbot from accessing your entire website, add this to your robots.txt file:
User-agent: rogerbot
Disallow: /
Block Specific Directories
To restrict access to certain parts of your site while allowing others:
User-agent: rogerbot
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: rogerbot
Crawl-delay: 10
How to Verify Rogerbot
Verification Method:
Originates from Moz IP ranges
Learn more in the official documentation .
Detection Patterns
Multiple ways to detect Rogerbot in your application:
Basic Pattern
/Rogerbot/i
Strict Pattern
/^rogerbot/1\.0 \(http\://moz\.com/help/pro/rogerbot\-crawler\)$/
Flexible Pattern
/Rogerbot[\s\/]?[\d\.]*?/i
Vendor Match
/.*Moz.*Rogerbot/i
Implementation Examples
PHP
Python
JavaScript
.htaccess
Nginx
Copy
function detect_rogerbot() {
$user_agent = $_SERVER['HTTP_USER_AGENT'] ?? '';
$pattern = '/Rogerbot/i';
if (preg_match($pattern, $user_agent)) {
// Log the detection
error_log('Rogerbot 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($_SERVER['REQUEST_URI']) . '.html');
exit;
}
return true;
}
return false;
}
Copy
import re
from flask import request, make_response
def detect_rogerbot():
user_agent = request.headers.get('User-Agent', '')
pattern = r'Rogerbot'
if re.search(pattern, user_agent, re.IGNORECASE):
# Create response with caching
response = make_response()
response.headers['Cache-Control'] = 'public, max-age=3600'
response.headers['X-Robots-Tag'] = 'noarchive'
return True
return False
class RogerbotMiddleware:
def __init__(self, get_response):
self.get_response = get_response
def __call__(self, request):
if self.detect_bot(request):
# Handle bot traffic
pass
return self.get_response(request)
Copy
const express = require('express');
const app = express();
// Middleware to detect Rogerbot
function detectRogerbot(req, res, next) {
const userAgent = req.headers['user-agent'] || '';
const pattern = /Rogerbot/i;
if (pattern.test(userAgent)) {
// Log bot detection
console.log('Rogerbot detected from IP:', req.ip);
// Set cache headers
res.set({
'Cache-Control': 'public, max-age=3600',
'X-Robots-Tag': 'noarchive'
});
// Mark request as bot
req.isBot = true;
req.botName = 'Rogerbot';
}
next();
}
app.use(detectRogerbot);
Copy
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} Rogerbot [NC]
RewriteRule .* - [F,L]
RewriteCond %{HTTP_USER_AGENT} Rogerbot [NC]
RewriteCond %{REQUEST_URI} !^/static/
RewriteRule ^(.*)$ /static/$1 [L]
SetEnvIfNoCase User-Agent "Rogerbot" is_bot=1
<If "%{HTTP_USER_AGENT} =~ /Rogerbot/i">
Header set Cache-Control "public, max-age=3600"
Header set X-Robots-Tag "noarchive"
</If>
Copy
map $http_user_agent $is_rogerbot {
default 0;
~*Rogerbot 1;
}
server {
if ($is_rogerbot) {
return 403;
}
location / {
if ($is_rogerbot) {
root /var/www/cached;
try_files $uri $uri.html $uri/index.html @backend;
}
try_files $uri @backend;
}
location @backend {
if ($is_rogerbot) {
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
Copy
User-agent: rogerbot
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
Copy
User-agent: rogerbot
Crawl-delay: 10
Disallow: /wp-admin/
Disallow: /drafts/
Disallow: /preview/
Disallow: /*?replytocom=
Allow: /
SaaS/Application Configuration
Copy
User-agent: rogerbot
Disallow: /app/
Disallow: /api/
Disallow: /dashboard/
Disallow: /settings/
Allow: /
Allow: /pricing/
Allow: /features/
Allow: /docs/
Quick Reference
User Agent Match
Rogerbot
Robots.txt Name
rogerbot
Category
seo
Respects robots.txt
Yes