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Apparently someone else thought about this a few years ago, but I was working on my Dynamic DNS project last night and thought, how many websites grab DNS or reverse DNS information and just pass it to the browser, unescaped? Apparently nonzero:


Click the button :)


The following site works for both forward lookup on and reverse lookup on 2001:470:1f07:b75::1337


Another example of how no external data should ever be trusted!


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