--- title: "Home" url: "https://barrierefreihochzwei.de/en" language: "en" description: "WCAG 2.2 explained in plain words: every success criterion, practical articles on design, development and content, and the European Accessibility Act." published: "2026-10-15T09:42:16+02:00" updated: "2026-10-15T09:42:16+02:00" --- # Home Barrierefrei² explains digital accessibility in plain terms: with a guide to every WCAG success criterion and practical articles. Digital accessibility, clearly explained # Accessibility that includes everyone. Barrierefrei² explains digital accessibility so you can put it into practice right away: every WCAG 2.2 success criterion in plain words, plus practical articles on design, development, content and the European Accessibility Act. [Explore the WCAG guide →](https://barrierefreihochzwei.de/en/wcag) [Read the articles](https://barrierefreihochzwei.de/en/blog) - 87 WCAG criteria explained - 12 practical articles - English & German WCAG 2.2 ## Four principles, one goal The WCAG group every requirement under four principles. Once you understand them, the individual success criteria make sense. 1. 1### [Perceivable](https://barrierefreihochzwei.de/en/wcag#perceivable) Content must be available to at least one sense: text alternatives, captions, contrast. 29 criteria 2. 2### [Operable](https://barrierefreihochzwei.de/en/wcag#operable) Everything must be operable – by keyboard, without time pressure and without triggering seizures. 34 criteria 3. 3### [Understandable](https://barrierefreihochzwei.de/en/wcag#understandable) Text, navigation and forms must be understandable and predictable. 21 criteria 4. 4### [Robust](https://barrierefreihochzwei.de/en/wcag#robust) Code must be clean enough for assistive technologies to interpret it reliably. 3 criteria ## New on the blog [ ](https://barrierefreihochzwei.de/en/blog/what-is-digital-accessibility) 13. Oktober 2026 ·Grundlagen ### [Digital accessibility: what it means and who it helps](https://barrierefreihochzwei.de/en/blog/what-is-digital-accessibility) Digital accessibility affects far more people than most teams assume. Learn what it really means, which myths keep hanging around and how to get started in a sensible way. [ ](https://barrierefreihochzwei.de/en/blog/germany-bfsg-accessibility-act) 10. Oktober 2026 ·Recht & Pflichten ### [Germany’s BFSG: What the Accessibility Act Asks of You](https://barrierefreihochzwei.de/en/blog/germany-bfsg-accessibility-act) Since 28 June 2025, Germany’s BFSG has made accessibility mandatory for many consumer-facing digital services. Who is covered, what is required and how to get started. [ ](https://barrierefreihochzwei.de/en/blog/accessibility-testing-tools-test-plan) 7. Oktober 2026 ·Testen & Tools ### [Accessibility Testing: Tools, Manual Checks and a Test Plan](https://barrierefreihochzwei.de/en/blog/accessibility-testing-tools-test-plan) Automated tools only catch part of the problem. Here’s how to combine tools, manual checks, user testing and formal audits into a test plan your team can actually follow. ## For everyone who builds digital products - **Design**: Contrast, focus, target sizes and layouts that work with zoom and on small screens. - **Development**: Semantic HTML, keyboard support, ARIA used wisely and components screen readers understand. - **Content**: Alt text, clear headings, plain language and meaningful link text. - **Business**: What the European Accessibility Act requires, how to prioritise and how to make accessibility stick in your team. **The European Accessibility Act applies since June 2025** Online shops, banking, e-books and many other digital services must be accessible. Find out what that means in practice and how to get started. [What the law requires](https://barrierefreihochzwei.de/en/blog/germany-bfsg-accessibility-act)