Hide a URL in the database, or with php or javascript

maidanez said:

Is this still accurate considering there are multiple implementations of javascript engines that would process this perfectly? Especially if there were no delays or event handlers to trigger the decryption process.

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The whole point of a cypher is that it's repeatable and works the same way regardless of the implementer.

Yeah but my point was surely the crawler reading the page can also decrypt it and see that there is a hidden url, as they have a javascript engine built-in. The only thing that is tough for them to simulate are human actions/events.

One of the ways of doing it would be javascript, where you can obfuscate/escape the link. Or you could also use a request (usually done with ajax) to the server to get the url, if a bot doesnt support javascript, that way they will not follow the link.