Auth.js / NextAuth is a Auth Provider that powers thousands of websites. Our detection engine uses multiple signals to identify Auth.js / NextAuth-built sites with high accuracy.
Detect Auth.js / NextAuth Websites — Free Tool
Enter any URL to check if it was built with Auth.js / NextAuth. Instant results, no account required.
How we detect Auth.js / NextAuth — see our methodology: AI Influence Score calculation, evidence tiers, and fingerprint signal types.
How to Detect Auth.js / NextAuth Websites
HTML Patterns
2 patterns
1. Check the Page Source
Open the website in your browser, right-click, and select "View Page Source". Search for auth.js / nextauth-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 Auth.js / NextAuth?
You can detect if any website was built with Auth.js / NextAuth 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 Auth.js / NextAuth was used — with a confidence score.
How to detect if a website was built with Auth.js / NextAuth?
There are several ways to detect Auth.js / NextAuth: (1) View the page source and look for Auth.js / NextAuth-specific class names or script URLs, (2) Check the Network tab in DevTools for requests to Auth.js / NextAuth CDN domains, (3) Use our free tool — we check 2 detection signals automatically.
What websites are built with Auth.js / NextAuth?
Auth.js / NextAuth is used by thousands of websites worldwide. Our scanner has detected many Auth.js / NextAuth-built sites across different industries. You can scan any URL to check if it uses Auth.js / NextAuth.
How accurate is the Auth.js / NextAuth detection?
Our Auth.js / NextAuth 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.
About Auth.js / NextAuth
Auth.js / NextAuth is a leading auth provider used by thousands of businesses and developers worldwide. Our detection engine can identify Auth.js / NextAuth-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.
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Detection Info
- Category
- Auth Provider
- Signals Used
- 2 patterns
- Accuracy
- High
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