What is a Cloudflare IP address checker used for?

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Grade: Education Subject: Support
What is a Cloudflare IP address checker used for?
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A Cloudflare IP address checker is a utility designed to determine if a given IP address (either IPv4 or IPv6) falls within the officially published IP ranges used by Cloudflare's network. Its primary use is to identify whether a website or service is leveraging Cloudflare's reverse proxy, security, and performance services, which mask the true origin IP address of the server.