Cap Captcha

Lightweight, modern open-source CAPTCHA alternative designed using SHA-256 proof-of-work.

As Cap Captcha is an open source project, you can find more open source alternatives and stats on LibHunt.

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Cap Captcha Reviews and Details

This page is designed to help you find out whether Cap Captcha is good and if it is the right choice for you.

#SPAM Protection #Captcha #Security #Security & Privacy

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Is Cap Captcha good?

Cap (capjs.js.org) is a solid, modern CAPTCHA alternative that uses a proof-of-work challenge instead of tracking users or requiring image puzzles. It is open-source, lightweight, privacy-friendly, and self-hostable, making it a good choice for developers who want a simple bot-mitigation solution without relying on third-party services like Google reCAPTCHA.

Why choose Cap Captcha?

Open-source and free, giving full transparency and control over the code
Privacy-focused since it uses proof-of-work challenges rather than tracking user behavior or data
Lightweight and fast, with a much smaller footprint than traditional CAPTCHA solutions
Self-hostable, so you aren't dependent on external providers or their availability
No annoying image puzzles for users, resulting in a smoother user experience
Easy to integrate with a straightforward API and framework-agnostic design

Recommended for

Developers building privacy-conscious applications who want to avoid third-party tracking
Small to medium websites needing basic bot protection on forms and logins
Projects that prefer self-hosted, open-source solutions over commercial services
Teams wanting a lightweight, low-friction alternative to Google reCAPTCHA or hCaptcha
Applications where a seamless user experience without puzzle-solving is a priority

External links

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Public traffic stats of Cap Captcha

Check the traffic stats of Cap Captcha on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
Domain Rating (DR)

Check the "Domain Rating" of Cap Captcha on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of Cap Captcha's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.
Domain Authority (DA)

Check the "Domain Authority" of Cap Captcha on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.
Public opinion on Reddit

The latest comments about Cap Captcha on Reddit. This can help you find out how popualr the product is and what people think about it.

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Cap Captcha discussion

Cap Captcha alternatives

Is Cap Captcha good? This is an informative page that will help you find out. Moreover, you can review and discuss Cap Captcha here. The primary details have not been verified within the last quarter, and they might be outdated. If you think we are missing something, please use the means on this page to comment or suggest changes. All reviews and comments are highly encouranged and appreciated as they help everyone in the community to make an informed choice. Please always be kind and objective when evaluating a product and sharing your opinion.