#captcha
2
2026-09-14
Show HN: ProofOfDonation, replace CAPTCHAs with charity donations
unrated
Hey, I made this self-hosted server called proof-of-donation, as an experimental alternative to CAPTCHA. It verifies email donation receipts using DKIM. Instead having users solve puzzles, you can gate signups on charity donations. Let me know what you think :)
2026-08-29
mosparo
unrated
The modern spam protection tool. It replaces other captcha methods with a simple and easy to use spam protection solution. (Source Code) MIT PHP