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Cloudflare Custom Hostname Verification

GoodBotVerifiedBOT

An automated service used by Cloudflare to verify domain ownership and configuration for customers using the Cloudflare for SaaS (Custom Hostnames) product. Operated by Cloudflare.

GoodBot
Assessment
Security
Category
BOT
Kind
1
Data sources
AI-generated summary, drawn from Cloudflare, operator docs, and community data

What is Cloudflare Custom Hostname Verification?

Cloudflare Custom Hostname Verification is a specialized internal agent operated by Cloudflare to support their 'Cloudflare for SaaS' platform. It acts as a validator that confirms a user's domain is correctly pointed to a provider's infrastructure, typically by checking for specific DNS records or HTTP-based tokens. This process is critical for SaaS providers who allow their customers to use custom domains, ensuring that only authorized users can map their domains to the provider's application.

Helpful — This bot performs essential domain validation checks to ensure that custom hostnames are correctly configured and authorized to point to a specific SaaS provider's infrastructure.

Identification

Bot name
Cloudflare Custom Hostname Verification
Operator
Cloudflare
Category
Security
Kind
BOT
Verification
Verified bot
Cloudflare slug
cloudflare-chv
User-agent patterns
Cloudflare Custom Hostname Verification
User-agent string
Cloudflare Custom Hostname Verification
Main use cases
Domain ownership verificationCustom hostname configuration validationDNS record checking for SaaS providers

Why it crawls your site

The bot crawls specific endpoints or DNS records to perform pre-validation checks required by the Cloudflare for SaaS workflow. By programmatically verifying that a domain is correctly configured, it automates the onboarding process for custom hostnames and prevents unauthorized domain mapping. Site administrators can verify this bot by checking that the requests originate from Cloudflare's known IP ranges and carry the specific 'Cloudflare Custom Hostname Verification' user-agent string.

Block or allow Cloudflare Custom Hostname Verification

Block it

Add a Disallow rule for Cloudflare Custom Hostname Verification 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 Custom Hostname Verification from crawling your entire site
User-agent: Cloudflare Custom Hostname Verification
Disallow: /

# Allow Cloudflare Custom Hostname Verification full access
User-agent: Cloudflare Custom Hostname Verification
Allow: /
Allow & verify

Ensure your robots.txt allows Cloudflare Custom Hostname Verification. Verify requests by checking the user-agent string.

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Data sources

This profile is compiled from the following sources.

CloudflareRadar
Last updated July 26, 2026