ALTCHA Description
ALTCHA is a CAPTCHA alternative which uses a proof of work mechanism to protect websites and online services against spam.
ALTCHA uses a mechanism of proof-of-work to protect your website, online services, and APIs from spam and unwanted material. Unlike other solutions ALTCHA is open-source, self-hosted and free. It does not require external services and does not use fingerprinting or cookies.
ALTCHA Alternatives
SpamTitan
SpamTitan email security protects businesses, schools, smbs and MSPs from spam. SpamTitan email security protects against spam, phishing, day-zero attacks and viruses, malware, ransomware and other threats to email.
It helps to control mail flow, clean it, protect against spam, and protect against unwanted email. We offer easy-to-use, yet powerful email security for businesses, smbs, and MSPs that is Office365-friendly.
SpamTitan Email Security is available for a free, fully supported trial.
SpamTitan – Premium functionality included
* CEO Impersonation protection
* Spearphishing Protection/ Phishing
* Link analysis
* Full Sanding
* Zero Day Attacks protection
* Mail Spooling
* Spoofing protection
* Ransomware and Malware Protection
* SPF/DKIM/DMARC checking
* Encryption
* Fully multi-tenant environment
* Ability to rebrand entire UI
* Full REST API
* Set up documents and support
SpamTitan Email Security is the best solution in the G2 Crowd Email Security. Start your free trial today!
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Psono
Psono, a self-hosted and open-source password manager, prioritizes keeping your data secure. It encrypts and stores your credentials in a manner accessible only to you, while also offering encrypted access-sharing with your team. Boasting a range of features, Psono facilitates easier data management and password accessibility than ever before. Its multi-level encryption begins with client-side encryption, ensuring genuine end-to-end encryption for password sharing, and is further bolstered by SSL and storage encryption. The complete code is subject to transparent public audit possibilities, underscoring that true security stems from precise encryption rather than the obfuscation of security weaknesses. Opting for a self-hosted credential manager like Psono allows you enhanced access control and eliminates dependency on public services for data storage, asserting itself as one of the most secure password managers that genuinely prioritizes client online safety on user-hosted servers.
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CaptchaFox
CaptchaFox is used by online businesses to protect and safeguard their websites and services from automated bot attacks. CaptchaFox provides protection against account takeovers, credential stuffings, spam, and scalping, while also complying with global privacy legislation, such as GDPR and CCPA. Privacy is protected by minimizing data collection and retention when verifying your users.
CaptchaFox uses a variety data signals and dynamic responses challenges to verify the genuineness of visitors, without the use or tracking cookies. The challenges are low friction for humans and difficult for bots.
The service is available across multiple languages, and can scale to the incoming traffic via our global infrastructure. Enterprise customers have access to advanced threat insights for complete risk awareness.
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MTCaptcha
MTCaptcha is a privacy-focused and accessible captcha service. It offers an adaptive invisible noCaptcha that ensures easy verification for humans while posing a challenge for bots. MTCaptcha complies with GDPR and WCAG, guaranteeing the protection of your data without any sharing or selling to third parties. The captcha images are colorblind-safe, and the widget is fully VPAT compliant, optimized for screen readers. Supporting multiple languages, MTCaptcha can be fully customized to match any webpage. It also provides audio support, enhancing accessibility for visually impaired users. Trusted by Enterprises, Government, NGOs worldwide, MTCaptcha is available in major languages and functions globally, including in China. Its adaptive Risk Engine effectively detects and responds to threats, maintaining the balance between challenging bots and facilitating human verification.
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Pricing
Pricing Starts At:
0
Pricing Information:
Free, with paid plans available.
Free Version:
Yes
Integrations
Company Details
Company:
BAU Software s.r.o.
Year Founded:
2023
Headquarters:
Czechia
Website:
altcha.org
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Our Free Plans just got better! | Auth0
You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
Product Details
Platforms
Web-Based
Types of Training
Training Docs
Customer Support
Online Support
ALTCHA Features and Options
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