ALTCHA
reCAPTCHA
hCaptcha
Cloudflare Turnstile
Private Captcha
mosparo
Akismet
GeeTest CAPTCHA
Hackr.io
Treehouse
edX
Codecademy
Pantheon
Docebo
Pluralsight
Coursera
ALTCHA uses a proof-of-work mechanism to protect your website, APIs, and online services from spam and unwanted content. Unlike other solutions, ALTCHA is free, open-source and self-hosted, without external services, does not use cookies nor fingerprinting, does not track users, and is fully compliant with GDPR.
ALTCHANo ALTCHA videos yet. You could help us improve this page by suggesting one.
ALTCHA's answer
What makes ALTCHA unique is that it is free, open-source and self-hosted, without external services, does not use cookies nor fingerprinting, does not track users, and is fully compliant with GDPR. Unlike other captcha solutions, ALTCHA does not require users to solve puzzles or captchas and uses a proof-of-work mechanism instead.
ALTCHA's answer
Here are some key reasons why a person should choose ALTCHA over its competitors:
So in summary, ALTCHA's privacy compliance, open design, accessibility, machine compatibility and modern approach give it clear advantages over competing captcha solutions.
ALTCHA's answer
JavaScript and Svelte.
Based on our record, Hackr.io should be more popular than ALTCHA. It has been mentiond 11 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
The captcha on orkestr is Altcha. Self-hosted, no third-party JS, no Google, no behavioral tracking. Users don't see a puzzle. There's a single checkbox and a quiet "verifying..." while the browser does some math. About a second, total. - Source: dev.to / 3 months ago
Here's how PoW works for form protection (using the ALTCHA wire format):. - Source: dev.to / 4 months ago
Go based, similar to JS based ALTCHA https://altcha.org/ discussed at https://news.ycombinator.com/item?id=43971068. - Source: Hacker News / 8 months ago
I am looking to work with 1 or 2 people on a https://hackr.io/ clone. Source: about 3 years ago
I know a better place, Https://hackr.io. Source: over 3 years ago
Https://hackr.io/ has countless resources. Source: about 4 years ago
For future situations when you want to find the best resource for X, you can check out hackr.io. It is a community driven database of resources where members upvote learning material they have tried and liked. The best way to find out what the best thing for you is to see for yourself regardless of what other's experiences may be. Source: about 4 years ago
Hackr.io https://hackr.io/ platform allows you to register and learn courses for free. There are multiple courses from different sources available on the website, a sizeable amount of people post lectures on the website. Although, there is a voting system whereby courses that get the most votes from users get upvoted to the top. There's also a filter available on the site that you can use to push down courses... - Source: dev.to / over 4 years ago
reCAPTCHA - reCAPTCHA is a free security service that protects your websites from spam and abuse.
Treehouse - Treehouse is an award-winning online platform that teaches people how to code.
hCaptcha - Do you use a captcha to keep out bots? hCaptcha is a drop-in replacement for reCAPTCHA that earns website owners money and helps companies get their data labeled.
edX - Best Courses. Top Institutions. Learn anytime, anywhere.
Cloudflare Turnstile - Cloudflare's service for any company to replace CAPTCHAs and deliver a better experience to web visitors.
Codecademy - Learn the technical skills you need for the job you want. As leaders in online education and learning to code, weโve taught over 45 million people using a tested curriculum and an interactive learning environment.