Top 10 SEO/AEO/GEO Tips When Creating a Vibe Coded Site

Vibe coding is revolutionising how websites get built — but if your AI-generated site ignores the fundamentals of SEO, AEO, and GEO, it will never be found. Whether you are prompting an AI to build your next project or assembling components at lightning speed, these 10 principles are non-negotiable if you want to rank on Google, appear in AI-generated answers, and dominate local and global search.

1. Design Token System — Centralise All Tokens in tailwind.config.js

One of the most overlooked technical SEO wins on vibe-coded sites is consistency. When your typography, colour palette, and spacing are defined as a centralised design token system inside tailwind.config.js — rather than scattered as hardcoded hex values throughout your components — search engines read a coherent, well-structured document. Consistent heading hierarchies and text sizes signal content authority. No more h2 tags styled to look like h4s or paragraphs with arbitrary font sizes that confuse crawlers. AEO (Answer Engine Optimisation) also rewards structured, scannable content — and that starts with disciplined design tokens that enforce visual and semantic hierarchy across every page.

2. Component-Driven Architecture — Single Responsibility, Domain-Grouped Subdirectories

Vibe-coded sites that dump everything into one massive component file create hidden SEO liabilities. Bloated, tangled JavaScript bundles slow page load, increase Time to First Byte (TTFB), and hurt your Core Web Vitals scores — all of which directly impact rankings. Organise your project into domain-grouped subdirectories: src/components/ui/, src/components/sections/, src/components/layout/. Each component should have one clear purpose. This clean separation makes code-splitting trivial, keeps bundle sizes lean, and makes it significantly easier for both crawlers and future developers to understand your site structure.

3. Mobile-First Responsive Design — Base Mobile Styles, Breakpoint Layering, Viewport Testing

Google's mobile-first indexing means your mobile experience IS your SEO. Writing base styles for mobile and layering up with sm:, md:, lg: breakpoints ensures the smallest viewport is your best-optimised. Vibe-coded sites frequently skip this step — they look great on a 1440px desktop and are unusable on a 375px iPhone. Test every layout at 375px, 768px, 1024px, and 1280px before considering a page done. For GEO (Generative Engine Optimisation), a seamless mobile experience also improves the likelihood of your content being cited in AI-generated answers, which increasingly draw from mobile-optimised sources.

4. Accessibility (a11y) — ARIA Labels, Semantic HTML, WCAG Contrast, Keyboard Navigation

Accessibility and SEO share the same foundation: semantic, well-structured HTML. Every interactive element needs an aria-label if its visible text is absent. Images need descriptive alt text. Navigation must be operable via keyboard. Colour contrast must meet WCAG AA minimums — 4.5:1 for body text, 3:1 for large text. Vibe-coded sites frequently generate div-soup — interactive elements built from non-semantic tags that screen readers and search engine crawlers both struggle to interpret. Using proper semantic HTML elements like nav, main, article, section, and header tells crawlers exactly what each part of your page does. Google's algorithm increasingly rewards accessibility signals as a proxy for content quality.

5. Performance Optimisation — Lazy Loading, Code Splitting, React.lazy, No Inline Data Arrays

Core Web Vitals are a confirmed Google ranking factor — and vibe-coded sites are notorious performance offenders. Use loading="lazy" on every below-the-fold image. Route-level code splitting with React.lazy() and Suspense means users only download the JavaScript they actually need. Never inline large data arrays directly in components — move them to src/data/ files imported as modules so bundlers can optimise them. Every 100ms improvement in page load time has a measurable positive impact on both rankings and conversion rates. For AEO, fast pages are more frequently crawled and indexed by AI answer engines that rely on fresh, accessible content.

6. Conversion-Optimised UI — Above-Fold CTA, Social Proof Placement, Inline Form Validation

Ranking on page one is only half the battle — your page has to convert. Vibe-coded sites often nail the visual design but forget the conversion fundamentals. Every page needs a clear primary CTA above the fold and at least one secondary CTA lower in the content. Social proof — client logos, star ratings, result statistics — belongs near your CTAs where it reduces hesitation. Forms must show inline validation feedback on blur, not only on submit. A high bounce rate signals to Google that users are not finding what they want, which suppresses rankings over time. Conversion and SEO are not separate disciplines — they are the same discipline applied at different stages of the user journey.

7. Micro-Interactions and Animation — Transform/Opacity Only, Respect prefers-reduced-motion

Thoughtful animation improves dwell time, reduces perceived load time, and signals a premium product — all of which indirectly support your SEO by improving user engagement metrics. The rule is simple: only animate transform and opacity properties, never width, height, padding, or margin. Animating layout-shifting properties causes jank, harms Cumulative Layout Shift (CLS) scores, and tanks your Core Web Vitals. Always wrap non-essential animations in a @media (prefers-reduced-motion: no-preference) check — this is both an accessibility requirement and an increasingly important signal for AI-driven search engines that evaluate user experience quality.

8. Typography Hierarchy — 3 Weights Max, 16px Minimum, max-w-prose Line Length, One H1 Per Page

Typography is the backbone of both readability and SEO. Use a maximum of three font weights across the entire site. Set a minimum body text size of 16px — anything smaller increases bounce rates on mobile. Limit line length to 65–75 characters using max-w-prose or max-w-2xl on text blocks. Every page must have exactly one H1 tag containing your primary keyword, with logical H2/H3 nesting beneath it. Never skip heading levels. AEO engines specifically extract structured text to build answer snippets — clean typographic hierarchy with proper heading nesting makes your content significantly more likely to be quoted directly in AI-generated responses.

9. State Management Patterns — Custom Hooks, Loading Skeletons, Debounced Handlers

Technical performance and user experience are inseparable from SEO. Co-locate state as close to where it is used as possible — avoid global state for local UI concerns. Encapsulate reusable logic in custom hooks (useContactForm, useScrollPosition) to keep components lean. Always handle all three async states explicitly: a loading skeleton matching the shape of the content it replaces, success content, and a clear error message. Vibe-coded sites frequently leave UIs stuck in broken intermediate states that increase bounce rates. Debounce scroll and resize handlers to avoid layout thrashing that degrades page performance and Interaction to Next Paint (INP) scores — another Core Web Vitals metric Google now measures.

10. SEO and Structured Data — JSON-LD Schemas, Open Graph Tags, Descriptive Anchor Text, 1200x630 OG Images

This is where SEO, AEO, and GEO converge. Every page needs a unique title (50–60 characters), a unique meta description (150–160 characters), and a canonical URL. Open Graph tags — og:title, og:description, og:image, og:url — must be present on every page for social sharing and AI indexing. JSON-LD structured data for LocalBusiness, FAQPage, and BreadcrumbList schema directly improves rich result eligibility and dramatically increases the likelihood of your content being pulled into AI-generated answers by Google's SGE, Perplexity, and ChatGPT's browsing mode. All internal links must use descriptive anchor text — never 'click here'. OG images should be exactly 1200x630px for optimal social and AI preview rendering. These are not optional extras — they are the foundation of visibility in both traditional and AI-powered search.

The Bottom Line for Vibe-Coded Sites

The speed at which vibe coding lets you ship is genuinely remarkable — but speed without structure produces invisible websites. The sites that rank, convert, and appear in AI-generated answers are the ones built on these ten principles. Technical excellence and great SEO are not in tension with each other. When you centralise design tokens, write semantic HTML, optimise performance, and implement structured data from the start, you are not doing extra work — you are doing the right work. Whether you are building with Bolt, Cursor, Lovable, or any other AI-assisted tool, these ten practices are what separate a website that gets found from one that does not.