Question 1

What is vibe coding?

Accepted Answer

Vibe coding is building software by describing what you want in plain language and letting an AI agent write the code. You prompt, it ships a working app; you iterate by prompting again instead of editing files. Tools like v0, Bolt.new, Lovable, and Replit Agent popularised the workflow, and it now produces a large share of new landing pages, dashboards, and side projects on the web. The output is real code — usually React, Tailwind, and a hosted database — so a vibe-coded site is not automatically worse than a hand-written one. What it does mean is that the site inherits the defaults of whatever tool made it: the same component library, the same class naming, the same build output. Those defaults are exactly what a vibe code detector reads.

Question 2

What is a vibe code detector?

Accepted Answer

A vibe code detector is a tool that inspects a website's public output and estimates whether it came out of an AI builder. It works the same way stack-detection extensions do: fetch the HTML, look at what shipped, and match it against known fingerprints. Generator meta tags, script bundle paths, hosting headers, utility-class patterns from a specific component library, and hosted backend endpoints all leave traces that differ between tools. A detector scores how many of those signals fired and how specific each one is. Isvibe.io is a vibe code detector for founders and dev teams: paste a URL, get a 0–100 Vibe Score, and read the exact list of signals behind it. Nothing is inferred from writing style or screenshots — only from the code the site actually serves.

Question 3

How does Isvibe.io detect if a website was built with AI?

Accepted Answer

We request the page like a normal browser would and analyse what comes back. First the document head: generator tags, framework hints, and metadata that builders write automatically. Then the script and asset paths, which often reveal the bundler, the deploy platform, and sometimes the builder itself. Then the markup, where component-library signatures and utility-class conventions show which UI kit was scaffolded. Finally the network layer of the page: hosted database and auth endpoints such as Supabase or Firebase that AI builders wire up by default. Each match carries a weight, and the weighted total becomes your Vibe Score. Every fired signal appears in the evidence list under your result, so if you want to know how to tell if a website is AI generated, you can verify each line in view-source yourself.

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How to tell if a website is AI generated

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What this AI website builder detector looks for

Why Isvibe.io

A vibe coding detector for founders and dev teams

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