Joomla is a veteran open-source CMS that holds the second-largest market share among self-hosted CMS platforms after WordPress — powering millions of sites for small businesses, government agencies, and non-profits worldwide. Its flexible user access management (ACL) and multilingual support built into the core (no plugin required) make it popular for organizations with complex permission structures and international audiences. Joomla's extension directory has 8,000+ extensions for adding functionality. Joomla sites are identifiable through /media/jui/ paths for jQuery UI assets, com_content references in URL query strings (index.php?option=com_content), the Joomla generator meta tag containing the version number, and /administrator/ path for the backend. The Joomla JavaScript namespace and component-specific CSS classes (mod-articles-category, com_content) appear throughout the markup. Joomla is free and open-source.
Detect Joomla Websites — Free Tool
Enter any URL to check if it was built with Joomla. Instant results, no account required.
How to Detect Joomla Websites
Script Patterns
2 patterns
HTML Patterns
2 patterns
HTTP Headers
1 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 joomla-specific patterns in the HTML.
2. Look for Script Files
Check the Network tab in DevTools for JavaScript files loaded from Joomla domains.
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 Joomla?
You can detect if any website was built with Joomla 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 Joomla was used — with a confidence score.
How to detect if a website was built with Joomla?
There are several ways to detect Joomla: (1) View the page source and look for Joomla-specific class names or script URLs, (2) Check the Network tab in DevTools for requests to Joomla CDN domains, (3) Use our free tool — we check 5 detection signals automatically.
What websites are built with Joomla?
Joomla is used by thousands of websites worldwide. Our scanner has detected many Joomla-built sites across different industries. You can scan any URL to check if it uses Joomla.
How accurate is the Joomla detection?
Our Joomla detection engine checks 5 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 Joomla
Joomla is a leading cms used by thousands of businesses and developers worldwide. Our detection engine can identify Joomla-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
- CMS
- Signals Used
- 5 patterns
- Accuracy
- High
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