JavaScript SEO
A practical learning path for understanding why JavaScript websites can look complete to visitors while bots receive a thin app shell.
Why it matters
Search engines and AI crawlers need readable HTML, route-specific metadata, internal links, and page copy. If those only appear after JavaScript runs, discovery becomes fragile.
What you will learn
- How raw HTML differs from the rendered page visitors see.
- How to test crawler-style requests before changing your stack.
- When prerendering, SSR, or static generation makes sense.
Learning path
- JavaScript SEO basics ↗
Understand the core browser-versus-crawler problem.
- Check what bots see ↗
Run a practical crawler HTML check.
- AI visibility for JavaScript websites ↗
Connect crawler HTML checks to mentions, citations and recommendations.
- Audit an XML sitemap ↗
Prioritize thin pages across important sitemap URLs.
- Choose a free crawler tool ↗
Match each crawler question to the right diagnostic tool.
- JavaScript SEO audit for agencies ↗
Turn raw, rendered, and crawler-facing comparisons into a client deliverable.
- AI crawler visibility ↗
See how AI crawlers fit into the same request-path problem.
- Prerendering vs SSR ↗
Choose the right rendering path for the stage of your site.
- Troubleshoot thin crawler output ↗
Fix pages where bots receive too little readable text.
7 articles
JavaScript SEO · 5 min read
Vite SEO: Fix Internal Links That Only Work After a Click
Audit navigation in a Vite app: check real link destinations, direct route access and rendered HTML so important pages can be discovered beyond your homepage.
Read article ↗JavaScript SEO · 5 min read
Can Crawlers Read Content Behind Tabs, Accordions and Load More?
Check whether important text is already in the page or fetched only after interaction. Diagnose tabs, accordions and load-more lists with HTML evidence.
Read article ↗Guides · 5 min read
How to audit crawler readability across an XML sitemap
A practical workflow for auditing crawler-readable HTML across an XML sitemap and prioritizing JavaScript pages that need deeper checks.
Read article ↗Guides · 5 min read
5 free tools to check what search engines and AI crawlers see
A practical guide to choosing between five free crawler-readability tools for JavaScript-heavy websites.
Read article ↗SEO · 4 min read
JavaScript SEO, AI crawlers, and prerendering: the complete starting point
Start here for JavaScript SEO, AI crawlers, prerendering, rendered HTML, no-code builder SEO, and crawler-ready setup decisions.
Read article ↗SEO · 8 min read
JavaScript SEO: why bots may not see your content
Learn why search engines and AI crawlers may miss content on JavaScript-heavy websites, how to check crawler output, and when prerendering helps.
Read article ↗Guides · 6 min read
How to check what Google and AI crawlers see on your website
A practical guide to checking what Google and AI crawlers see on your website, from curl tests to crawler-readable HTML checks.
Read article ↗Documentation and tools
Free crawler tools ↗Run single-page, bulk, rendering-gap, and discovery-file checks.
Verify installation ↗Confirm crawler requests reach Prerender Buddy.
Thin crawler response ↗Debug pages where bots receive too little text.