When planning a corporate website redesign on WordPress, one of the most consequential architectural decisions is choosing between a third-party visual page builder and a custom-engineered Gutenberg block theme powered by Full Site Editing (FSE).
1. DOM Depth and Core Web Vitals Performance
Legacy page builders often wrap a single heading or button inside 10 to 15 nested <div> containers while loading hundreds of kilobytes of unused CSS and JavaScript on every page view. By contrast, native WordPress block themes use semantic HTML5 and centralized theme.json design tokens, drastically reducing Largest Contentful Paint (LCP) and Interaction to Next Paint (INP).
2. Editorial Governance for Marketing Teams
With custom Gutenberg block patterns, developers define locked design tokens (colors, spacing, typography) while giving content editors the freedom to assemble new landing pages in minutes—without risking off-brand fonts or broken mobile padding.
3. Long-Term Security and Upgrade Stability
Because block themes rely on native WordPress core APIs rather than proprietary shortcode wrappers, major WordPress and PHP upgrades remain smooth, predictable, and free from vendor lock-in.
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