Vercel is a cloud platform for frontend developers and teams, purpose-built for deploying static sites, serverless functions, and modern JavaScript frameworks like Next.js, which Vercel itself maintains. The platform is widely adopted by developers building performance-focused web applications, particularly those using React-based stacks that benefit from Vercel's edge network and instant rollback capabilities. Detection of Vercel-hosted sites relies on two distinct HTTP response headers that Vercel injects at the infrastructure level, making identification reliable regardless of how the frontend is built or customized. These headers are consistently present across Vercel's deployment infrastructure, providing a low-noise, high-confidence signal that persists even when sites use custom domains or heavily modified frontends. Vercel operates on a freemium model, offering a generous free tier for personal projects and hobby deployments, with Pro and Enterprise plans available for teams requiring advanced features such as password protection, higher usage limits, and SLA guarantees — a pricing structure that has contributed to its broad adoption across both small developer projects and large-scale production applications.
Detect Vercel Websites — Free Tool
Enter any URL to check if it was built with Vercel. Instant results, no account required.
How we detect Vercel — see our methodology: AI Influence Score calculation, evidence tiers, and fingerprint signal types.
How to Detect Vercel Websites
HTTP Headers
2 patterns
1. Check the Page Source
Open the website in your browser, right-click, and select "View Page Source". Search for vercel-specific patterns in the HTML.
4. 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 Vercel?
You can detect if any website was built with Vercel 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 Vercel was used — with a confidence score.
How to detect if a website was built with Vercel?
There are several ways to detect Vercel: (1) View the page source and look for Vercel-specific class names or script URLs, (2) Check the Network tab in DevTools for requests to Vercel CDN domains, (3) Use our free tool — we check 2 detection signals automatically.
What websites are built with Vercel?
Vercel is used by thousands of websites worldwide. Our scanner has detected many Vercel-built sites across different industries. You can scan any URL to check if it uses Vercel.
How accurate is the Vercel detection?
Our Vercel detection engine checks 2 unique fingerprint signals, achieving high confidence results. We score each match and return a confidence percentage so you know how certain the detection is.
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Detection Info
- Category
- Hosting
- Signals Used
- 2 patterns
- Accuracy
- High
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