Cloudflare Trace returns lightweight network diagnostics for the current request.
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Response format is plain text key=value, not JSON. In Test Lab, sensitive headers such as Authorization/x-api-key and sensitive field keys are blocked.
Last verified: February 14, 2026
Public test lab configuration summary for this API.
https://www.cloudflare.com/Methods
Verified endpoint examples
cdn-cgi/traceRequest trace info
Returns key=value diagnostics such as IP, protocol, colo, and TLS version.
ips-v4Cloudflare IP ranges
Returns Cloudflare IPv4 CIDR ranges.
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