Yii is a PHP framework for web applications and admin back ends. Detection relies on the assets and CSRF field its default setup publishes. A Yii site is also reported as PHP.
5+
Detected Sites
Framework
Category
10%
AI Score
3
Fingerprints
Detect Yii on any website:
Detected Websites
Real sites found by our scanner using Yii
Related Technologies
Other Framework frequently used alongside Yii
Frequently Asked Questions
What is Yii?
Yii is a PHP framework for web applications and admin back ends. Detection relies on the assets and CSRF field its default setup publishes. A Yii site is also reported as PHP.
How do you detect Yii on a website?
Our scanner analyzes 3 technical fingerprints including Script URLs or inline script content matching "/assets/[0-9a-f]{6,}/yii(.[a-z]+)?.js", "yii.(activeForm|validation).js" (high-confidence tier) and HTML structure patterns such as "name=["'](YII_CSRF_TOKEN|_csrf-(frontend|backend))["']" (medium-confidence tier) to identify Yii usage with high accuracy.
Which websites use Yii?
Thousands of websites use Yii across various industries. Our real-time scanner continuously discovers new Yii deployments — use the search above to detect any website.
Is Yii popular?
Yii is a widely adopted Framework in the web infrastructure space. Our scanner detects it regularly across scanned domains.
How We Detect Yii
- Script URLs or inline script content matching "/assets/[0-9a-f]{6,}/yii(.[a-z]+)?.js", "yii.(activeForm|validation).js" (high-confidence tier)
- HTML structure patterns such as "name=["'](YII_CSRF_TOKEN|_csrf-(frontend|backend))["']" (medium-confidence tier)
- Cookies named like "YII_CSRF_TOKEN", "_csrf-(frontend|backend)" (medium-confidence tier)
- Signal weights for Yii: 85 points per high-tier match, 55 per medium, 25 per low — a site needs 60+ points before Yii is reported.