Protection
against Spam and Abuse.
ALTCHA’s Spam Filter is like a good robot, automatically classifying user-submitted data and intercepting spam before it reaches you.
Improve Accessibility and Eliminate Spam
Integrate a truly invisible spam protection without Captchas on your server.
Increase user conversion rates by eliminating Captchas from your website.
Achieve reliable classification through methodical analysis of input data.
Detect fake or suspicious email addresses and distinguish between "free" and "work" emails.
Identify whether an IP address is associated with a data center, proxy, or TOR exit for malicious activity.
Effectively block certain countries, regions, or continents from accessing or using your website or APIs.
Spam Filter vs. Akismet
Based on the latest Anti-Spam Report and comprehensive testing,
ALTCHA’s Spam Filter outperforms in both speed and accuracy.
See how ALTCHA Spam Filter compares to Akismet, CleanTalk, ChatGPT and others in the report.
Methodical Data Analysis
Instead of relying on traditional machine learning algorithms, ALTCHA’s Spam Filter utilizes a methodical analysis of input data. This approach thoroughly examines text, email addresses, and IP addresses using sophisticated rules, ensuring reliable and predictable data classification without unexpected results.
Monitoring and Logging
The built-in AntiSpam dashboard enables you to monitor your websites and apps’ usage of the API. Optional request logging is available to assist with integration and debugging.
With Super-Easy Integration
Using the Widget
ALTCHA’s Widget combined with the Spam Filter simplifies the process with minimal setup on your server.
When set up with the Widget, the Spam Filter checks data before it’s sent to your server. This helps improve user experience by giving immediate feedback on potential spam, allowing users to correct their input.
Using the API
For straightforward spam protection, use the API to check for spam directly on your server.
fetch('https://eu.altcha.org/api/v1/classify', { body: JSON.stringify({ email: '@gmail.com', ipAddress: '0.0.0.0', text: 'To spam or not to spam...' }), headers: { 'authorization': 'Bearer ...', 'content-type': 'application/json', }, method: 'POST',});Modes of Operation
Learn more about modes in the documentation.
The Spam Filter can detect even sophisticated human-generated spam by analyzing text and submitted form fields using natural language processing. It identifies common patterns, spam words, and the text’s language.
When text analysis is not an option, leverage comprehensive IP analysis to effectively detect bots and automated systems. The system identifies data centers, TOR proxies, and checks updated blacklists of known bad actors.
For the best results and highly accurate spam detection, combine text and IP verification to catch both bots and humans submitting spam to your website.
Versatile Use Cases
Safeguarding your websites and applications.
ALTCHA Spam Filter is a comprehensive solution designed to protect your digital assets from spam and abuse. Utilizing real-time data analysis, the Spam Filter detects and blocks spam before it reaches your system. This proactive approach ensures a clean, user-friendly environment, keeping your websites, APIs, and applications secure and efficient.
Highly customizable, ALTCHA Spam Filter can be tailored to fit your specific requirements, whether you’re managing simple contact forms or complex transactional data.
Prevent spam from infiltrating your website forms, ensuring clean and reliable data collection.
Automatically filter out spam from comments, reviews, and other user-generated content, maintaining the integrity of your site's interactions.
Identify and block malicious actors and fake accounts with robust email validations and IP-related checks, including geo-location analysis.
Reduce chargebacks and fraudulent transactions, ensuring a safer and more secure shopping experience for your customers.
Privacy-Focused Solution
All our services, including the Spam Filter, prioritize privacy and comply with GDPR and CCPA data privacy regulations. ALTCHA’s Spam Filter is custom-built and hosted privately in the EU and USA. Importantly, it does not use or rely on commercial services like ChatGPT or similar AI technologies, and we do not share your data with any third parties.
The AntiSpam API, which includes both the Spam Filter and PoW Challenges, is available with the “Pro” subscription.
Verification requests start at €0.0005 per request. For more details, please visit the Pricing page.
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