
LiteSpeed Web Server
Microsoft IIS
Apache HTTP Server
Eclipse Jetty
Forge
Phusion Passenger
OpenResty
An open source software implementation of the Java Servlet and JavaServer Pages technologies

reCAPTCHA
hCaptcha
Cloudflare Turnstile
Akismet
Private Captcha
mosparo
Cap Captcha
ALTCHA is a free CAPTCHA alternative that uses a proof-of-work mechanism to protect your website, and online services from spam.

Which is more popular?
Based on our record, Apache Tomcat should be more popular than ALTCHA. It has been mentioned 18 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | tomcat.apache.org | altcha.org |
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In their own words, as submitted to SaaSHub.


No description of Apache Tomcat yet.
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...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of ALTCHA yet.
Walkthroughs and reviews on video.
Introducing Apache Tomcat 8.5
More videos
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Apache Tomcat and ALTCHA.
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.
ALTCHA's answer:
Our primary audience for ALTCHA Forms includes enterprises, medium and small businesses, non-profits, and individuals who need a reliable, secure, and compliant solution for data collection and management. Whether you're a large corporation dealing with extensive regulatory requirements, a small business looking to protect customer and employee data, a non-profit organization managing sensitive information, or an individual seeking robust data security, ALTCHA Forms provides the tools and features necessary to meet your needs. With a focus on compliance, user-friendly design, and advanced security measures, our platform is tailored to support diverse users in navigating complex regulatory landscapes and ensuring data protection.
Share your experience with using Apache Tomcat and ALTCHA. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Java programs are run using Apache Tomcat. To be more precise, it is a Java servlet – a Java software component that expands the functionality of a web server. Apache Tomcat, released under the Apache License version...
Apache Tomcat is an open-source implementation of several Java technologies. It is the result of a collaboration of the finest developers worldwide. You can get involved with the development in a number of ways.
Apache Tomcat is an open source Java servlet container that functions as a web server. A Java servlet is a Java program that extends the capabilities of a server. Although servlets can respond to any types of...
We have no reviews of ALTCHA yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


For most mature organizations, commercial support is a requirement. Commercial dependencies provide such support by nature. For Open Source projects, support ranges from none to companies providing support on projects as part of their... - Source: dev.to / 11 months ago
Versions 11.0.6 and 9.0.104 of Apache Tomcat deliver new features and improvements. The release notes can be found for both versions. - Source: dev.to / over 1 year ago
Download and Install Tomcat Before downloading, confirm the latest Tomcat build package from the official website. - Source: dev.to / almost 2 years ago
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 / 4 months ago
Here's how PoW works for form protection (using the ALTCHA wire format):. - Source: dev.to / 6 months ago
Go based, similar to JS based ALTCHA https://altcha.org/ discussed at https://news.ycombinator.com/item?id=43971068. - Source: Hacker News / 9 months ago
When comparing Apache Tomcat and ALTCHA, you can also consider the following products.

LiteSpeed Web Server (LSWS) is a high-performance Apache drop-in replacement.
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reCAPTCHA is a free security service that protects your websites from spam and abuse.
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Internet Information Services is a web server for Microsoft Windows
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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.
Compare hCaptcha to Apache Tomcat or ALTCHA:

Apache httpd has been the most popular web server on the Internet since April 1996
Compare Apache HTTP Server to Apache Tomcat or ALTCHA:

Cloudflare's service for any company to replace CAPTCHAs and deliver a better experience to web visitors.
Compare Cloudflare Turnstile to Apache Tomcat or ALTCHA: