Directory/Categories/Monitoring & Analytics/Cloudflare Diagnostics

Cloudflare Diagnostics

Name: Cloudflare Diagnostics
Author: Cloudflare

GoodBotVerifiedBOT

Cloudflare system bot that performs health checks and diagnostic tests Operated by Cloudflare.

GoodBot

Assessment

Monitoring & Analytics

What is Cloudflare Diagnostics?

Cloudflare Diagnostics is a web crawler operated by Cloudflare. Cloudflare system bot that performs health checks and diagnostic tests

Helpful — Verified, safe crawler. Respects robots.txt and provides operator documentation.

Identification

Bot name

Cloudflare Diagnostics

Operator

Cloudflare

Why it crawls your site

Cloudflare Diagnostics crawls websites to monitor website availability, performance, and analytics. It is operated by Cloudflare as part of their monitoring and analytics infrastructure. If you see this bot in your server logs, it is a verified crawler and generally safe.

Block or allow Cloudflare Diagnostics

Block it

Add a Disallow rule for CloudflareDiagnostics in your robots.txt file. You can also block at the server level using your web server configuration or CDN firewall rules to filter requests matching the user-agent string.

# Block Cloudflare Diagnostics from crawling your entire site
User-agent: CloudflareDiagnostics
Disallow: /

# Allow Cloudflare Diagnostics full access
User-agent: CloudflareDiagnostics
Allow: /

Allow & verify

Ensure your robots.txt allows CloudflareDiagnostics. Verify requests are genuine by checking the user-agent string and referring to Cloudflare's documentation.