A Captcha That’s Secure, Stylish, and 100% Ours
Introduction
Most captcha systems feel like black boxes — clunky, inflexible, and tied to third-party services that track users and harvest data.
At Teruza, that wasn’t good enough.
We needed a captcha solution that was private, fully controllable, and customizable — not just in how it looked, but in how it behaved. So we built our own: a fully integrated captcha widget for web and mobile, designed to detect malicious users without compromising design, performance, or privacy.
--- Ardi Coetzee, Chief Technology Officer at Teruza"We didn’t just want to style our captcha — we wanted to control every part of it. That meant building it ourselves. Now it’s fast, flexible, and completely ours."
The Problem
The more we worked with 3rd-party captcha services, the more we ran into limitations:
- Limited styling: Most widgets are ugly and often can’t be customized — or worse, are trapped inside iframes
- Opaque decision-making: You never quite know what data is being used to decide if a user is “human”
- Privacy concerns: Using 3rd party tools means sending user data to outside parties, often without meaningful control
- Rigid logic: You can’t change how it behaves or how much it trusts specific users, IPs, or patterns
For a platform like Teruza — where customization, security, and data ownership are key — none of that was acceptable. We needed something purpose-built that gave us full control.
Our Solution
We built a first-party captcha system, completely independent of third-party services. It works across web and mobile, and includes several features designed specifically for modern SaaS platforms:
- Advanced behavior checks: Including IP reputation scanning, session tracking, rate limiting, and client fingerprinting
- Blacklist integration: Captchas can deny access automatically based on known malicious IPs or behavior
- Customizable logic: Captcha behavior can be adjusted per site or form — from challenge frequency to what happens on failure
- Styleable by design: Unlike iframe-based captchas, our widget can be fully themed to match your UI — buttons, fonts, layout, and all
- Lightweight and embeddable: No bloat, no external dependencies, and no load delays from third-party scripts
- Mobile-ready: Designed to work seamlessly inside native mobile apps using standard component wrappers
Most importantly, this captcha keeps all data in your hands. No analytics are shared with Google or other vendors. You remain in full control of who gets in, how, and why.
Impact
- Clients gain complete styling control over their captcha components
- Zero third-party data sharing improves compliance and user trust
- Integrated threat logic blocks known bad actors before they reach your forms
- Works across both web and mobile platforms
- Helps Teruza clients enforce form security without compromising UX or performance
- No need for reCAPTCHA keys, external setup, or branding
Demo
You can easily demo the Captcha widget by going to Teruza's login page. You should see it as follows:
Reach out by submitting
the form below
Contact Information
Whether you are looking for a full-scale system or quick advice, we are always happy to help.
Reach out. We will make it worth your time.
Phone
Let's Talk
Ready to chat? Click the button below to book a time that suits you.
Book A Call Book A Call
Our Latest Projects
Here's What We've Been Up To Lately
work process
See the value in
our Development
Process
01Step
Project Discovery
Our Project Managers collaborate with your team to fully understand your unique needs.
02Step
Strategy Development
We formulate a proposal outlining exactly how we see the project panning out as a whole or in phases.
03Step
Implementing the solution
Our very transparent process ensures clients are kept informed regarding timeframes and budget throughout the project.
04Step
Continuous Monitoring
We work with clients to continuously monitor progress as well as changes to all environments.
Book a call with one of our Project Managers today to see how
Teruza can assist you with your development needs and ultimately boost
your projects potential.
Teruza can assist you with your development needs and ultimately boost
your projects potential.
