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Link 70932 thumbnail
User 209500 avatar

By rlamarch
via evolt.org
Published: Mar 16 2008 / 20:19

Very simple anti-bot spam technique that works extremely well. It requires no javascript, cookies or complicated server weirdness, is fully accessible, has no hidden fields, has negligible overhead and takes just a moment or two to implement. It requires that the user fill out one field with a number, so it's good for anti-bot but will not prevent human spammers.
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User 273858 avatar

davjo089 replied ago:

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link dead. - Server seems to be down?

User 270819 avatar

kreiser replied ago:

1 votes Vote down Vote up Reply

Silly. Very very very silly. This is the implementation of one of the first captchas in the world. So easy to hack that only lazyness can save the site from spam.

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