Web Echo Service for developers

I recently had need of a service that would return your exact query to you for web client (or proxy) development purposes, in a case where using Fiddler, Wireshark, tcpdump et.al. was proving difficult for various reasons. The solution became the C-Net Echo Service, available at https://echo.c-net.org/ (and over plain HTTP if you need it). Feel free to use this for whatever.

Example usage:

$ curl -X PUT -d "Hello World!" -H "User-Agent: Fake Agent" -H "CUSTOM-HEADER: foo" -H "X-Forwarded-For:" "https://echo.c-net.org/"
PUT / HTTP/1.1
Host: echo.c-net.org
Accept: */*
User-Agent: Fake Agent
Content-Type: application/x-www-form-urlencoded
Connection: Keep-Alive
Content-Length: 12

Hello World!

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