AEO for vibe-coded apps: getting AI engines to actually cite you
Client-only SPAs are nearly invisible to ChatGPT, Claude and Perplexity. Answer Engine Optimization is making your vibe-coded site crawlable, parseable and citable. Here is what matters.
Most AI builders default to a client-rendered single-page app: an empty HTML shell plus a bundle that paints content after JavaScript runs. Search crawlers have mostly adapted to that. AI answer engines — the crawlers behind ChatGPT, Claude and Perplexity — largely have not. They fetch your HTML, see almost nothing, and move on. Your site becomes invisible to the tools people increasingly ask instead of Googling.
Answer Engine Optimization (AEO) is the practice of making sure those engines can crawl, parse and cite you. For a vibe-coded SPA it comes down to a few concrete changes.
Render content in the HTML
The single highest-leverage change: serve real content in the initial HTML response, not just after hydration. Server-side rendering or static prerendering of your key pages means an AI crawler sees your headings, copy and answers without executing JavaScript.
Give engines structure to quote
Clear heading hierarchy (one h1, descriptive h2s) so a model can find the section that answers a question. Structured data (JSON-LD) for your product, FAQs and articles. A short, factual summary near the top of each page — the part most likely to be quoted. A reachable robots.txt and sitemap; do not block the AI user-agents you want citations from.
Measure it
VibeSafely's AEO scanner checks whether your rendered HTML, structured data and crawl directives let AI engines parse and cite you — alongside a traditional SEO grade. Fixing AEO usually fixes classic SEO too, because both reward the same thing: real content, served fast, with clear structure.
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