Microblogi: A very long article Wikipedia article on the orientation of toilet paper [7. kes klo 22:52] [V]

Keskiviikko, 4. syyskuuta 2019

CAPTCHA

Käännös: [ Google ]

Kategoriat: [ Blogi ]

For years, the comments were systematically rejected on the blog because most of them were spam, and I didn't have a good way of filtering them out. A CAPTCHA would have been a solution, but I read that the ones based on warped text are easily defeated, and I didn't want to bother with images anyway.

I recently rediscovered the idea of a CAPTCHA based on arithmetics, which I now have implemented. The poster of a comment must do a simple arithmetics operation involving two single digit numbers and one operator. It should not be difficult to defeat, but arithmetics CAPTCHAs are apparently uncommon, so it is likely that most bots don't implement such solvers. It has already repelled a couple of spam comments today.

[ Postattu 4. syyskuuta 2019 klo 22.34 | ei kommenttia | ]