JavaScript SEO

JavaScript SEO is the work of making sure content built with JavaScript frameworks (React, Vue, Angular) can actually be seen and indexed by search engines. Because much of a modern site’s content may load via JavaScript after the initial HTML, there is a risk that crawlers see an empty shell instead of your content.

Check what Google actually renders using the URL Inspection tool and the rendered HTML, not just the raw source. If important content, links, or metadata only appear after JavaScript runs, consider server-side rendering (SSR), static generation, or dynamic rendering so crawlers get the full content reliably. Ensure internal links are real anchor tags, not click handlers, and that critical content is not hidden behind interactions.

Senior practitioners treat rendering as a first-class technical concern on JS-heavy sites, because Google’s two-wave crawl-then-render process can delay or drop content and quietly waste crawl budget. They push for SSR or hybrid rendering architectures, monitor the gap between raw and rendered HTML at scale, and collaborate with engineering so SEO requirements are built into the framework choice — not retrofitted after a launch tanks organic traffic.