Contao

Contao is a powerful and versatile open-source Content Management System (CMS) designed for creating professional, accessible, and scalable websites and web applications. Since its inception in 2006, it has focused on continuous development, high security standards, and user-friendliness, making it a reliable choice for international agencies and companies. The platform offers a consistent operating concept that allows editors to quickly manage content, while developers benefit from its solid, changeable, and standards-based architecture.

Key strengths of Contao include its built-in GDPR compliance, ensuring data protection measures like double opt-in and logging are handled by default. It is also highly optimized for SEO, providing granular control over metadata, automatic sitemap generation, and schema.org tagging. Furthermore, Contao excels in accessibility, enabling the creation of websites that meet stringent standards like BITV 2.0 and the European Accessibility Act, with its own administration area also being largely accessible. Performance is another core aspect, with support for modern technologies like HTTP2, ESI, and compatibility with caching solutions like Varnish, ensuring fast delivery even for large installations. Security is paramount, offering modern password hashing, passkeys, and two-factor authentication.