Responsible Web Development: Tools and Best Practices #
Tools, guides and standards for responsible web development: web accessibility, eco-design, web performance, security, SEO and software quality. A curated list of up-to-date resources for more sustainable, inclusive and efficient websites.
Performance #
Tools
PageSpeed Insights
Analyzes your site's performance based on Google metrics.
WebPageTest
Advanced performance testing with technical insights.
SpeedCurve
Continuous performance monitoring with budget tracking.
Documentation
- Core Web Vitals –Core Web Vitals: metrics for perceived quality.
- PerfDevTools –Official guide to Chrome's performance tools.
- SpeedCurve Performance Budgets –Define realistic and measurable performance budgets.
Accessibility #
Tools
WAVE
Accessibility checker with visual highlights.
Accessibility Checker
Automated compliance testing against WCAG standards.
Contrast Finder
Tool for improving text/background contrast.
Documentation
- WCAG –International standard for web accessibility.
- RGAA –French accessibility standard for public services.
- ARIA Authoring Practices –Best practices for accessible interactive components.
Typography #
Tools
Security #
Tools
Mozilla Observatory
Security scanner based on web best practices.
Mozilla SSL Config Generator
Generate a secure and up-to-date SSL/TLS configuration automatically, based on Mozilla's best practices.
Security Headers
Check your site's HTTP security headers.
SSL Labs
Comprehensive analysis of your website's SSL/TLS configuration, with a clear grade and actionable recommendations.
Documentation
- OWASP Top 10 –Top 10 most common web security risks.
- CSP Generator –CSP header generator to strengthen security.
- RGS –Official French reference defining security requirements for public information systems, including recommendations relevant to secure development practices.
Eco-design #
Tools
EcoIndex
Assesses the environmental impact of a web page.
Hubblo
Tracks environmental performance of IT systems.
GreenSpector
Assesses the environmental impact of digital services on real devices: energy consumption, equivalent CO₂ emissions, CPU and memory usage.
Documentation
- 115 bonnes pratiques du CNUMR –Collaborative list of eco-friendly best practices.
- W3C Sustainable Web –W3C initiatives for a more sustainable web.
- GreenIT.fr –Pioneering collective of web eco-design in France.
- Institut du Numérique Responsable (INR) –Reference institute for a more responsible digital future.
- Le Label NR –Label promoting responsible digital practices (Label NR)
- RGESN –Official French guidelines for ecodesigning digital services
SEO #
Tools
Ahrefs
Backlink analysis, technical SEO and keyword tracking.
Semrush
Comprehensive SEO audits and position tracking.
Detailed Extension
Really great SEO extension: Detailed
Documentation
- Google SEO Starter Guide –Google’s official SEO starter guide.