Most SEO advice targets marketers. But page speed, rendering, architecture, structured data are engineering decisions. Great content never ranks if the page takes 5 seconds and renders client-only.
Google preferred format.| SSR | Excellent | Dynamic content | Next.js, Nuxt |
| SSG | Excellent | Blogs, docs | Astro, Hugo |
| ISR | Excellent | E-commerce | Next.js |
| CSR | Poor | Dashboards | React SPA |
JS Rendering
Googlebot renders JS but with delays. SSR/SSG eliminates risk. Use CSR only for non-SEO pages.
Technical SEO is high-ROI because competitors neglect it. Superior speed, rich snippets, rendering, architecture — engineering problems with engineering solutions.
Technical SEO for modern web applications requires passing Core Web Vitals thresholds (LCP under 2.5 seconds, INP under 200ms, CLS under 0.1), implementing server-side rendering or static generation for SEO-critical pages, and adding structured data markup which increases click-through rates by 20-30%. Pages passing CWV rank 24% higher on average in Google search results.
Key Takeaways
- CWV are ranking signals: LCP<2.5s, INP<200ms, CLS<0.1
- SSR/SSG mandatory for SEO-critical pages
- Structured data: +20-30% CTR via rich snippets
- SPAs need specific crawl optimization
- Internal linking most underrated lever
Frequently Asked Questions
Key Terms
- Core Web Vitals
- Google UX metrics: LCP, INP, CLS.
- Structured Data
- JSON-LD providing explicit content info to search engines.
- Crawl Budget
- Pages a search engine will crawl per timeframe.
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Technical SEO is where engineering meets marketing. Modern apps face JS rendering, routing, and dynamic content challenges.