Self-hosting

Your server. Your domain. Your control.

By default, CaptchaCore runs on our servers in Germany. For companies with special requirements, we offer self-hosting on your own server.

Default

Managed

We run CaptchaCore for you. You sign up, receive API keys and embed the widget. We take care of servers, updates and security.

Servers in Germany
Automatic updates & monitoring
Ready to use instantly

From €0 / month View pricing

On request

Self-hosting

CaptchaCore is installed on your own server, under your domain. Full control over data, configuration and infrastructure.

Your own server, your own domain
Data never leaves your server
Custom configuration

Request self-hosting

Requirements

Requirements for self-hosting

Server

Linux (Debian/Ubuntu recommended)
PHP 8.3+ with Redis extension
MySQL 8+ or MariaDB 11+
Redis 7+
NGINX or Apache

We take care of

Installation & configuration
SSL certificate (Let's Encrypt)
Initial setup of sites & keys
Documentation for your team
Optional maintenance contract

Architecture

How a check works

Browser (user)
    │
    ├─ 1. Page loads → widget fetches challenge       GET /api/v2/challenge
    ├─ 2. WebWorker solves PoW in the background       (~200ms, no UI blocking)
    ├─ 3. Behavioral signals are being collected          (mouse, keyboard, touch)
    └─ 4. Form submit → token is verified      POST /api/v2/verify
            │
            └─ Risk Engine: PoW + Behavior + IP + UA
                    ├─ Score < 30  → allow
                    ├─ Score 30-59 → challenge
                    └─ Score 60+   → block

16 KB

Widget

gzip, no framework

< 50ms

Verify

Server-side check

5 layers

Protection

PoW + Behavior + Risk + Threat Intel + UAM

Want your own infrastructure?

Tell us briefly how many forms and verifications you expect. We’ll get back to you with a proposal.

Request self-hosting Documentation