react 2 code splitting 2 internationalization 2 rollup bundler 1 terser minification 1 css minification 1 asset optimization 1 image optimization 1 font optimization 1 lazy loading 1 defer loading 1 prefetch optimization 1 preload optimization 1 dns prefetch 1 preconnect 1 resource hints 1 critical rendering 1 above fold 1 viewport optimization 1 frame rate stability 1 platform-as-a-service 1 accessibility 1 wcag compliant 1 a11y ready 1 aria labels 1 semantic html 1 responsive design 1 mobile first 1 mobile responsive 1 tablet friendly 1 cross browser 1 browser compatibility 1 progressive enhancement 1 graceful degradation 1 feature detection 1 polyfills 1 transpilation 1 babel compatible 1 esbuild powered 1 60fps support 1 120fps support 1 render performance 1 animation performance 1 scroll performance 1 input response 1 visual feedback 1 loading states 1 skeleton screens 1 progressive loading 1 streaming html 1 partial hydration 1 selective hydration 1 island architecture 1 component architecture 1 atomic design 1 component driven 1 design system 1 paint metrics 1 layout metrics 1 interaction metrics 1 lcp optimization 1 fid optimization 1 cls optimization 1 inp optimization 1 ttfb optimization 1 fcp optimization 1 dcl optimization 1 tti optimization 1 time to interactive 1 first meaningful paint 1 speed index 1 total blocking time 1 max potential fid 1 cumulative layout shift 1 visual stability 1 jank prevention 1 paas ready 1 self-hosted 1 on-premise 1 hybrid cloud 1 multi-cloud 1 cloud agnostic 1 vendor neutral 1 portability 1 migration path 1 zero downtime 1 backward compatibility 1 semantic versioning 1 lts support 1 long term support 1 stability 1 production proven 1 battle tested 1 load balancing 1 azure app service 1 docker container 1 docker compose 1 kubernetes ready 1 helm charts 1 terraform ready 1