Each one of these links will redirect you to visit this page through a reverse proxy that we’ve set up. You can then use the forms below to submit requests to our echo site through that proxy to see what changes are made the the HTTP headers.

If you’re here for PearlCTF, welcome! For your challenge you were given two requests. Each request was passed a single proxy, one of the ones listed below. You need to figure out which proxies by sending different kinds of requests through each.

If you’re having trouble returning to the main site (Modlishka especially is causing some problems), just copy fingerprint.httpcarrierpigeons.xyz into your browser.

Links

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Normal GET Request

Echo Site

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Complex GET Request

Any random text here:

Any random text here (again):

Any random text here (again again):

Standard dropdown: Option 1 Option 2 Option 3

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POST Request

Field 1:

Field 2: