Topic
Software
Software we build for our own operations and mostly publish as open source – what it is for, how it works and how you can use it.
All articlesGatekeeper: a sign-in gate for websites behind nginx or Traefik
Our open-source gatekeeper protects previews, reports and internal pages: sign-in by one-time code or OpenID Connect, without a database.
Spam protection for web forms – without cookies or foreign CAPTCHA services
How our self-hosted ALTCHA service stops form spam with proof-of-work: no puzzles, no cookies, no tracking and no data sent to a CAPTCHA provider.
OWASP Dependency-Check: CVE updates in minutes with a static NVD mirror
Our NVD mirror serves the NVD data as static files – no API key, no rate limits – plus ready-made Dependency-Check databases for H2, MySQL and PostgreSQL.