How to Build a Website With Vibe Coding

Choose the build surface that matches the job

Start with the kind of control you need, not a leaderboard. A visual AI builder is useful when you want a hosted draft, direct manipulation and a short path to publishing. A repo-aware coding agent is stronger when you already have a codebase, need precise dependencies, or expect engineers to maintain the result.

Whichever route you choose, confirm that you can inspect or export the code, restore an earlier version, preview at multiple widths and separate drafts from production. Current first-party workflows from Replit and v0 both emphasise incremental building instead of asking for an entire production system in one shot.

Write the one-page brief before the first prompt

A useful brief names one audience, one problem, one primary action and the evidence a visitor needs before taking that action. It also says what version one will not include. This is product work, not prompt decoration: every missing decision becomes a guess the agent has to make.

Give the agent observable success criteria

“Make it modern” is subjective. “At 390px wide, the price, billing period and buy button are visible without horizontal scrolling” is testable. Describe the visitor journey as actions and outcomes: open the navigation, submit the form, see a confirmation, refresh the page and use the back button.

Ask for boundaries too. If version one does not need accounts, payments or persistent data, say so. Replit’s current quickstart uses the same pattern: one outcome, observable success criteria, explicit exclusions, browser testing and one focused improvement at a time.

Build one complete vertical slice

Generate the smallest journey that proves the idea. For a service site, that might be home page → service detail → enquiry confirmation. For a small web app, it might be dashboard → create item → see the saved result. A finished path exposes more useful problems than six disconnected screens.

• ✓ Keep the existing project structure and working content.
• ✓ Reuse shared buttons, cards, typography and layout primitives.
• ✓ Use realistic sample content, clearly labelled when it is not real.
• ✓ Defer secondary features until the primary path works.

Turn “the vibe” into a small design system

Three adjectives are a start, but references make them operational. Supply two or three examples and annotate the quality you want from each: editorial spacing, compact navigation, tactile controls or restrained motion. Tell the agent what not to copy and what to avoid.

Then lock a few decisions: type scale, content width, spacing rhythm, colour roles, border treatment, control shape and motion rules. Reusing a curated component system helps the page keep a point of view as it grows. That is the role of the Rendyn catalogue: your agent can compare polished options and install the complete implementation instead of improvising every control.

Replace generated filler with credible content

Generated drafts can invent the shape of trust—logos, testimonials, awards and percentage improvements—even when no evidence exists. Remove it. Use a direct value proposition, specific features, real screenshots, a concrete process and honest calls to action. If the product is pre-launch, say so.

Write important copy before asking the agent to polish the layout. Content length affects hierarchy, card height, wrapping and mobile rhythm; placeholder text hides those problems until late in the build.

Add functionality in thin, testable layers

Add forms, data, authentication and payments only after the public experience is coherent. Each layer should have an explicit state model: empty, loading, success, validation error, server error and retry. For a vibe coding app, also define who owns each record and what every role can read or change.

Keep credentials out of browser code. Validate input at the trusted boundary, authorise actions on the server and review database access rules. Lovable’s security documentation makes the same distinction: built-in checks are useful, but they do not replace a review appropriate to the sensitivity of the app.

Use the site like a visitor, not a screenshot

A polished first viewport can still hide a broken product. Test at a desktop width and a narrow phone width. Click every primary link, submit each form, trigger errors, use the keyboard, zoom the page and watch for sideways scrolling. Check the browser console and failed network requests, but judge success by the rendered experience.

Save a known-good version before the next pass

AI iteration is fast enough to erase a working detail while fixing another. Keep changes small, review the diff and record a known-good version. If your builder supports Git sync, use a branch or pull request for meaningful changes. Lovable’s Git sync guide explicitly positions version control as a route to backup, code review, branch testing and portability.

When a change fails, describe the symptom and the expected behaviour. Ask the agent to find the underlying cause, preserve unrelated behaviour and prove the fix with the failing journey.

Finish the unglamorous launch work

Give each page a unique, descriptive title and meta description. Use one H1, semantic section headings, useful link text, descriptive alternative text and a canonical public URL. Google may use a meta description when it better represents the page, while title links can draw from several visible and metadata sources—so the on-page title and metadata should agree. See Google Search Central’s guidance on title links and snippets.

Finally, connect the real domain, add analytics and error monitoring if appropriate, verify the production URL and retest the primary journey. Publishing is a separate step from proving that the live result works.