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Cloudflare CSUP

GoodBotVerifiedBOT

Cloudflare CSUP is a bot used by Cloudflare's customer support for diagnostic purposes. It is not a general web crawler and is used to investigate technical issues with customer websites. Operated by Cloudflare.

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

What is Cloudflare CSUP?

Cloudflare CSUP is a web crawler operated by Cloudflare. Cloudflare CSUP is a bot used by Cloudflare's customer support for diagnostic purposes. It is not a general web crawler and is used to investigate technical issues with customer websites.

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

Identification

Bot name
Cloudflare CSUP
Operator
Cloudflare
Category
Other
Kind
BOT
Verification
Verified bot
Cloudflare slug
cloudflarecsup
User-agent patterns
cloudflare-csup
User-agent string
cloudflare-csup
Main use cases
Web crawlingData collection

Why it crawls your site

Cloudflare CSUP crawls websites to collect and process web content. It is operated by Cloudflare as part of their web crawling infrastructure. If you see this bot in your server logs, it is a verified crawler and generally safe.

Block or allow Cloudflare CSUP

Block it

Add a Disallow rule for cloudflare-csup 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 CSUP from crawling your entire site
User-agent: cloudflare-csup
Disallow: /

# Allow Cloudflare CSUP full access
User-agent: cloudflare-csup
Allow: /
Allow & verify

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

Traffic & trends

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Data sources

This profile is compiled from the following sources.

CloudflareRadar
Last updated July 26, 2026