Bolt.new is an AI-powered full-stack web application builder by StackBlitz that runs a complete Node.js environment directly in the browser using WebContainers technology. Unlike most AI builders that hide the generated code, Bolt gives developers full visibility and editability of every file — enabling installation of any npm package, use of any framework (React, Vue, Svelte, Astro), and deployment to any infrastructure. It's the preferred AI builder for developers who want AI-accelerated productivity without sacrificing code ownership or framework flexibility. Bolt-generated apps follow standard web development patterns and deploy instantly via one-click integrations with Netlify. Pricing starts with a free tier and scales to Pro from $20/month for heavier usage.
Detect Bolt Websites — Free Tool
Enter any URL to check if it was built with Bolt. Instant results, no account required.
How to Detect Bolt Websites
Script Patterns
3 patterns
CDN Domains
2 patterns
HTML Patterns
3 patterns
HTTP Headers
2 patterns
Meta Tags
2 patterns
1. Check the Page Source
Open the website in your browser, right-click, and select "View Page Source". Search for bolt-specific patterns in the HTML.
2. Look for Script Files
Check the Network tab in DevTools for JavaScript files loaded from Bolt domains.
3. Check CDN Domains
Network requests to these CDN domains indicate a Bolt site:
bolt\.hoststackblitz\.io4. Use AI Website Detector (Easiest)
Our automated scanner checks all these signals at once and gives you an instant confidence score. Just enter any URL above.
Frequently Asked Questions
Is this website built with Bolt?
You can detect if any website was built with Bolt by using our free scanner above. Just enter the URL and we'll analyze HTML patterns, JavaScript files, CDN domains, and HTTP headers to determine if Bolt was used — with a confidence score.
How to detect if a website was built with Bolt?
There are several ways to detect Bolt: (1) View the page source and look for Bolt-specific class names or script URLs, (2) Check the Network tab in DevTools for requests to Bolt CDN domains, (3) Use our free tool — we check 10 detection signals automatically.
What websites are built with Bolt?
Bolt is used by thousands of websites worldwide. Our scanner has detected many Bolt-built sites across different industries. You can scan any URL to check if it uses Bolt.
How accurate is the Bolt detection?
Our Bolt detection engine checks 10 unique fingerprint signals, achieving high confidence results. We score each match and return a confidence percentage so you know how certain the detection is.
About Bolt
Bolt is a leading ai website builder used by thousands of businesses and developers worldwide. Our detection engine can identify Bolt-built websites with high confidence by analyzing multiple technical signals.
Whether you're a developer doing competitive research, a designer looking for inspiration, or just curious about how a website was built — AI Website Detector gives you instant, accurate detection.
Rate this Builder
No ratings yet — be the first!
Detection Info
- Category
- AI Website Builder
- Signals Used
- 10 patterns
- Accuracy
- High
Compare Bolt
Recently Analyzed Websites
User Reviews
No reviews yet. Be the first to review Bolt.