Robert
Jansen
 (marTech
&&
dev)

Site speed & Web Performance

Full Stack Audits & Enhancements

Web Vitals

Frontend Optimization

  • Template rendering
  • Font, Image & Video delivery
  • JavaScript & CSS optimization and refactoring
  • GTM & 3rd Party tooling impact
  • Accessibility WCAG & Custom Crawlers
  • DevTools, Search Console & WebPageTest

Backend Optimization

  • Infra & Proxy checks and tweaks
  • Caching
  • PHP xDebug, Cachegrind, DataDog
  • NodeJS
  • Databases queries
  • Backend API Endpoints monitoring

Report and alert automation

Based on web performance SDKs & APIs.

  • Lighthouse Budget & API/CLI implementation
  • WebPageTest (API Integration)
  • Real User Monitoring (CalibreApp, SpeedCurve, OpenReplay)
  • Search Console & GoogleBot monitoring
  • Browser Performance API Integration

Accessibility

  • WCAG compliance, keyboard navigation, screen reader compatibility
  • Full accessiblity checks and recommendations according to WCAG and local applicable standards and requirements.