Network diagnostics
This tool runs a quick connectivity check against your device. Your client IP is
auto-detected from the request — there is nothing to type. There is a flag.txt in the web root.
Client IP (auto-detected)
The address is read from a request header, so the only way to change what gets probed is to alter that header in the request.
$ ping -c 1 216.73.216.233
PING -c 56 bytes: icmp_seq=1 time=0.1 ms
Stuck? You've missed the flag a few times. The full solution — root cause, exact payload and fix — is on the walkthrough page.
Check the solution on the walkthrough page →This is an isolated, intentionally-vulnerable sandbox. Data here is fake and scoped to you. The rest of CSPSHIVAM Playground is not part of the target.