Technical SEO for JavaScript sites: rendering, crawling and indexing
Search engines can render JavaScript — but it costs them. Here's how to make sure every important page is crawled, rendered and ranked.
By VitalBlaze Admin
Modern search engines render JavaScript, but rendering is queued and expensive. The more work a crawler needs to do, the slower your pages are discovered and the more likely something breaks.
Render on the server
Server-side rendering or static generation puts your content and links in the initial HTML. That's the single biggest technical SEO win for React apps.
Make links crawlable
Use real <a href> elements. Click handlers on divs are invisible to crawlers.
Metadata per route
Every indexable URL needs a unique title, description and canonical — generated on the server.
Structured data
Add JSON-LD for your organisation, products, articles and FAQs. Rich results lift click-through rates measurably.
Keep the sitemap honest
Generate your sitemap from the same data source as your pages, and include lastModified dates that actually change.
Watch the vitals
Page experience is a ranking signal. A fast, stable page earns more crawl budget and more clicks.
