JavaScript SEO & rendering guides
Practical guides to making your JavaScript site visible to search engines, AI crawlers, and social platforms. Comparisons, how-tos, and deep technical dives.
Partial Prerendering: a practical guide for 2026
How Next.js Partial Prerendering works, how to enable it, and when a framework-agnostic alternative makes more sense.
AJAX SEO: how to make async-loaded content indexable in 2026
Why async-loaded content disappears from search and how to fix it without rewriting your app.
JavaScript SEO rendering: the complete guide for 2026
How search engines handle JavaScript - and what to do when they struggle.
Prerender Alternatives: the simpler, cheaper choice
The simpler Prerender.io alternative - DNS-only setup, flat per-site pricing, every bot covered including AI crawlers.
Why JavaScript SEO matters
Modern JavaScript frameworks create brilliant user experiences, but search engines and AI crawlers often struggle to see the content. Google's crawler can execute JavaScript, but on a delayed schedule. Other bots - ChatGPT, Claude, social media scrapers - do not render JavaScript at all.
This blog covers the practical side of solving that problem: comparing rendering approaches, explaining how different bots work, and sharing the technical details behind making SPA content discoverable. Whether you are debugging indexing issues or choosing between SSR, SSG, and dynamic rendering, you will find actionable guidance here.
We publish new articles when they are ready rather than on a fixed schedule, so the archive grows steadily with guides, comparisons, and case studies. Recent topics include how Googlebot handles client-side rendered React applications, why ChatGPT and Claude struggle to cite SPAs, how to test your Open Graph tags without relying on Facebook and Twitter's debuggers, and practical migration paths from create-react-app and Vite to server-side rendering with Next.js, Remix, or Astro.
If you are evaluating PageGlass against alternatives like Prerender.io, Rendertron, or rolling your own SSR pipeline, our comparison pages break down the tradeoffs in plain language. We cover pricing, setup complexity, maintenance overhead, compatibility with popular JavaScript frameworks, and the edge cases where each approach shines or struggles. Use the category filter above to jump straight to the section most relevant to your project.