
ALTCHA
reCAPTCHA
hCaptcha
Cloudflare Turnstile
Private Captcha
mosparo
GeeTest CAPTCHA
Cap Captcha
grep.app
Sourcegraph
searchcode
Sourcebot
Codase
Etsy Hound
OpenGrok
URLscan.io
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, grep.app should be more popular than ALTCHA. It has been mentiond 16 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 / about 2 months ago
Here's how PoW works for form protection (using the ALTCHA wire format):. - Source: dev.to / 3 months ago
Go based, similar to JS based ALTCHA https://altcha.org/ discussed at https://news.ycombinator.com/item?id=43971068. - Source: Hacker News / 7 months ago
How though? Can you also avoid DDoS simply by designing your system to not care if the requester is a bot or not. Let's say I'm running https://grep.app/ for example. AI bots start heavily using it, costing me a ton of money. How would you magically design this so it doesn't matter if the end bots are using it? - Source: Hacker News / about 2 months ago
Https://grep.app - To search repos for patterns. I usually use it when I'm using an obscure or badly documented library. https://unicode.scarfboy.com/ - Unicode stuff. There are a lot of small Unicode tool sites. - Source: Hacker News / over 1 year ago
There are some alternatives like https://grep.app or https://sourcegraph.com/search if you want fast live search, but at the end of the day these are generally expensive services to provide, especially for free anonymous users, so you should probably at least accept that service providers can and do change things like this. You can also run something like your own copy of Zoekt and then ingest repositories on... - Source: Hacker News / almost 2 years ago
Https://grep.app/ is another good one. Not sure how many repos they index though. - Source: Hacker News / almost 2 years ago
Https://grep.app/ is similar and seems to return results, but I have not compared it to native GitHub search. - Source: Hacker News / about 2 years ago
reCAPTCHA - reCAPTCHA is a free security service that protects your websites from spam and abuse.
Sourcegraph - Sourcegraph is a free, self-hosted code search and intelligence server that helps developers find, review, understand, and debug code. Use it with any Git code host for teams from 1 to 10,000+.
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.
searchcode - A source code search engine
Cloudflare Turnstile - Cloudflare's service for any company to replace CAPTCHAs and deliver a better experience to web visitors.
Sourcebot - Codebase understanding for humans and agents