Solutions for Businesses
E-commerce stores, SaaS products, marketplaces, and agencies managing multiple client sites all face the same problem: as a business grows, so does its exposure to bots. Fake account sign-ups, checkout and coupon abuse, credential stuffing on login forms, scraping, and API abuse cost businesses time, money, and infrastructure capacity.
ALTCHA protects your business without compromising visitor privacy, conversion rates, or compliance. Unlike traditional CAPTCHA services, ALTCHA is privacy-first and free from tracking, cookies, and fingerprinting — whether you use a fully managed cloud service or run the protection on your own infrastructure.
Open-Source
Best for engineering teams building custom applications, internal tools, or products with specific integration requirements.
The open-source ALTCHA widget makes it easy to protect virtually any form or API. Whether you're building with plain HTML, React, Vue, Svelte, Angular, or your own backend, ALTCHA integrates with your existing stack and CI/CD pipeline.
Highlights
- Free and open source (MIT license)
- Lightweight and fast, with no impact on conversion or page performance
- Self-hosted with no external requests
- No cookies, tracking, or fingerprinting to worry about in your compliance review
- Accessible and privacy compliant
- Libraries available for multiple server-side languages and frontend frameworks
Perfect if you want basic, reliable bot mitigation with full control over the integration and no ongoing cost.
WordPress Plugin
Best for business websites, WooCommerce stores, membership sites, and agencies managing client sites on WordPress.
Protect your WordPress or WooCommerce site in minutes without writing code. The ALTCHA WordPress plugin integrates seamlessly with WordPress to stop spam, fake orders, and account abuse while keeping checkout and sign-up frictionless for real customers.
Highlights
- Easy installation across single sites or multi-site/agency deployments
- Privacy-first by default, with no dependency on external CAPTCHA providers
- Unlimited verifications — no quotas as your traffic grows
- Built-in firewall and rate limiting
- Designed for high-traffic websites and sales events
Perfect if you want reliable protection for a WordPress or WooCommerce business without maintaining custom integrations. The plugin can also be connected to ALTCHA Cloud or ALTCHA Sentinel for adaptive, risk-based protection.
ALTCHA Cloud
Best for growing businesses that need adaptive, enterprise-grade protection without operating their own security infrastructure.
ALTCHA Cloud is a fully managed bot protection service, powered by the same adaptive detection engine behind ALTCHA Sentinel. It combines adaptive CAPTCHA, real-time threat intelligence, and risk-based decisioning into a complete protection platform — hosted entirely in the EU, with nothing to install, patch, or scale yourself.
If your business is dealing with fake sign-ups, checkout and promo abuse, credential stuffing, scraping, or targeted attacks, Cloud gets you enterprise-grade protection live in minutes, with a dashboard your team can use to monitor traffic and threats across sites.
Includes
- Adaptive CAPTCHA
- Real-time threat intelligence
- Risk-based, adaptive decisioning
- EU-hosted infrastructure with data residency, supporting GDPR-aligned deployments
- Dashboard with analytics and logs across all your sites
- Plans that scale with you — more sites and API capacity as you grow, from Cloud up to Cloud Plus and Cloud Max
- No servers to install, patch, or maintain
Perfect if you want comprehensive, adaptive protection for one or several sites without building and operating your own detection infrastructure. Every plan includes a 30-day free trial — see Pricing for details.
ALTCHA Sentinel
Best for businesses with strict infrastructure, compliance, or data residency requirements that need to run protection entirely on their own systems.
ALTCHA Sentinel is the same adaptive detection engine that powers ALTCHA Cloud, but self-hosted on your own infrastructure — Docker, Kubernetes, AWS, Azure, and more. It's the right choice when your business needs full control over where data lives and how the system is deployed, monitored, and audited.
Includes
- Adaptive CAPTCHA
- Spam and text classification
- Bot detection based on interaction, contextual, and machine-learning signals
- Threat intelligence and proxy/TOR detection
- Link and phishing detection
- Rate limiting
- Self-hosted deployment with Docker, Kubernetes, AWS, Azure, and more
- Full ownership of data, deployment, and configuration
Perfect if you already run your own infrastructure and need advanced, adaptive protection to stay entirely within it — for example due to internal security policy, data residency, or compliance requirements that rule out third-party processing.
Which Solution Should You Choose?
| If you... | Recommended |
|---|---|
| Build your own website or application | Open-Source Widget & Libraries |
| Run a WordPress or WooCommerce business site | WordPress Plugin |
| Want advanced, adaptive protection without managing a server | ALTCHA Cloud |
| Need advanced protection but must run it on your own infrastructure | ALTCHA Sentinel |
Why Businesses Choose ALTCHA
- Privacy first — No tracking, cookies, or fingerprinting, whether you use Cloud or self-host.
- Flexible hosting — Start with the managed ALTCHA Cloud service, or run ALTCHA Sentinel on your own infrastructure if you need full control.
- Compliance-friendly — EU-hosted, GDPR-aligned, and WCAG-accessible by design, reducing the work for your compliance and legal teams.
- Protects revenue — Stops checkout fraud, fake accounts, and credential stuffing without adding friction that hurts conversion.
- Scales with you — From a single site on the free open-source widget to multi-site, high-traffic deployments on Cloud or Sentinel.
- No vendor lock-in — The core widget is open source; move between self-hosted and managed deployments as your needs change.