Case Studies
Real Results: How Pre-rendering + AI SEO Transforms JavaScript Sites
These case studies show what happens when JavaScript SPAs built with tools like Lovable, Bolt, Replit, and React go from invisible to fully crawlable — and how AI SEO optimization compounds the results.
SaaS Landing Page Built with Lovable
B2B SaaS • Lovable + Custom Domain
The Problem
A B2B SaaS company built their marketing site with Lovable. After 3 months live, Google had indexed zero pages. Their Google Search Console showed the site was "discovered but not indexed" — Google found the URLs but couldn't read the JavaScript content.
The Fix
Added Crawlable's DNS-level pre-rendering in under 2 minutes. No code changes. Enabled AI SEO auto-optimization for meta tags and schema markup.
Results After 30 Days
- 0 → 47 pages indexed in Google Search Console
- Crawl rate increased 12x — Google went from attempting 2 crawls/week to 24+
- First page rankings for 3 long-tail keywords within 3 weeks
- Cited by Perplexity for a product-category question within 2 weeks
E-commerce Store Built with Bolt.new
D2C E-commerce • Bolt.new + Netlify
The Problem
A direct-to-consumer brand built their product catalog and checkout with Bolt.new. Product pages weren't appearing in Google Shopping results, and organic traffic was zero despite having 200+ product pages.
The Fix
Deployed Crawlable pre-rendering with AI SEO. Auto-generated Product schema markup for every product page. Optimized meta descriptions with AI to include pricing and availability.
Results After 60 Days
- 0 → 213 product pages indexed
- Rich snippets with pricing showing in search results for 40+ products
- Organic traffic: 0 → 1,800 visits/month
- Google Shopping eligibility — product pages now qualify for Shopping results
Developer Tool Built with React + Vite
Developer Tools • React SPA + Vercel
The Problem
A developer tool company had a comprehensive docs site and blog built as a React SPA. Despite having 80+ pages of high-quality technical content, they ranked for almost nothing. AI assistants never cited their tool when users asked about the problem space.
The Fix
Added pre-rendering for all bot traffic. Enabled AEO optimization — auto-generated FAQ schema on docs pages and structured answer content for AI extraction.
Results After 45 Days
- Indexed pages: 12 → 83
- Organic traffic increased 340%
- Cited by ChatGPT for 6 different queries related to their tool category
- Featured in Google AI Overview for their primary product keyword
Local Service Business Built with Replit
Local Business • Replit + Custom Domain
The Problem
A local service business built their website with Replit to save on development costs. The site looked professional but wasn't appearing in local search results. Google My Business was set up, but the website link led to a page Google couldn't read.
The Fix
Added Crawlable pre-rendering. AI SEO auto-generated LocalBusiness schema markup with service areas, hours, and contact information. Optimized meta tags for local keywords.
Results After 30 Days
- All 8 pages indexed within 5 days of enabling pre-rendering
- Appeared in local pack for "[service] near me" queries
- Rich snippets with business hours and ratings in search results
- Organic leads: 0 → 15/month from search
The Pattern
Every case study follows the same arc: a JavaScript SPA that's invisible to search engines and AI bots, fixed with infrastructure-level pre-rendering that requires zero code changes. The results compound when you add AI SEO optimization — auto-generated meta tags, schema markup, and AEO content that you'd otherwise need a dedicated SEO team to produce.
The common thread: the longer a JavaScript SPA goes without pre-rendering, the more organic traffic and AI citations you're leaving on the table.
See results like these for your site
Crawlable pre-renders your JavaScript app for 150+ bots and auto-optimizes your SEO with AI. Setup takes under 2 minutes, requires zero code changes, and includes a 7-day free trial. Get started →