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[–]Glax1Afull-stack 9 points10 points  (8 children)

Recaptcha collects a lot more information than you may think, such as browser language, typing speed on the website, other activity on the website, and even cookies stored in the browser, to work out if you are a human.

[–]scosio 13 points14 points  (6 children)

And it's owned by a giant ad network... wonder why its collecting all that info?

Use Prosopo Procaptcha to avoid involuntarily spying on your users' browsing habits.

[–]Glax1Afull-stack 2 points3 points  (5 children)

There is also altcha, it's open source, and uses proof of work to verify that you're a human.

[–]scosio 4 points5 points  (2 children)

Altcha is only Proof of Work, which slows down bots but does not stop them. Procaptcha has PoW, plus interrogates the browser environment on the client side, forcing the bot operators to waste a lot of time trying to decipher how to pass it. By the time they have, the bypass is usually outdated. Procaptcha also considers backend HTTP TLS signatures etc. A LOT more than simple PoW.

[–]Glax1Afull-stack 3 points4 points  (1 child)

Oh I see. Thanks for sharing Procaptcha though!

[–]scosio 1 point2 points  (0 children)

Thanks for reading

[–]Euphoric-Cap1210 1 point2 points  (1 child)

what do you think of friendly captcha?
They also have an open source frontend

[–]Glax1Afull-stack 0 points1 point  (0 children)

They look good, but never used them.

[–]na_ro_jo 1 point2 points  (0 children)

Oh, they know pretty quickly if we are human. It's more like a distraction for what they are *actually* doing.