Rendering
Rendering refers to the technical process of translating HTML, CSS, and JavaScript into a visually displayed user interface. The type of rendering -- whether client-side, via Server-Side Rendering , or as Static Site Generation -- determines how quickly content appears and how stable a website is perceived to be. For SEO and user experience, the rendering strategy is one of the most consequential architectural decisions.
Why is rendering relevant?
Rendering significantly impacts metrics such as First Contentful Paint , Largest Contentful Paint , and Cumulative Layout Shift . An inefficient rendering strategy delays visible content and worsens evaluation by PageSpeed .
Client-side vs. server-side rendering
In client-side rendering, most of the rendering is executed in the browser. Server-Side Rendering ( Server-Side Rendering ) or static generation, by contrast, deliver pre-rendered content and improve Indexing .
Optimization strategies
Techniques such as Critical CSS , intelligent Lazy Loading , and a structured Build process reduce render-blocking resources. Effective Caching also supports faster rendering behavior.
Common mistakes and misconceptions
Blocking scripts, large stylesheets, or complete dependency on client-side frameworks degrade rendering times. Ignoring Progressive Enhancement frequently leads to poorer accessibility and impaired indexing.
Practical perspective
We use a hybrid rendering approach: all SEO-relevant pages are pre-rendered at build time via Static Site Generation -- resulting in 128+ finished HTML files without server-side computation. Dynamic areas such as forms or booking components use Server-Side Rendering with Angular Hydration so interactive elements work immediately. This separation allows us to achieve LCP values under 1.5 seconds for content pages while interactive features remain immediately usable.