If I'm seeing an IP address that's not on the Cloudflare IP list, but I'm using Cloudflare, what could be the reason?

By: USER1856
27 Agustus 2025 Support 5 minutes
4.5
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Question

Grade: Education Subject: Support
If I'm seeing an IP address that's not on the Cloudflare IP list, but I'm using Cloudflare, what could be the reason?
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Answer (117)

Best Answer
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If you are seeing traffic from an IP address not on the list, it is highly unlikely that it is legitimately from Cloudflare. Double-check the IP address, and ensure your firewall is configured correctly to only allow connections originating from Cloudflare's published IP ranges. Investigate any suspicious traffic for potential malicious activity.
Answered on 27 Agustus 2025

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