What is Yii?

Framework

Yii is a web framework: High-performance PHP framework. Tech Stack Detector identifies Yii on any website by analysing cookies and script URLs.

Yii is a web framework (Framework), detected on 2 websites in our index. See websites using Yii ↓

CategoryFramework

Official siteyiiframework.com

Detection signals2 signals

In our index2 websites

How Tech Stack Detector detects Yii

Yii is matched from these signals during a single, ordinary page request. Each one contributes to the confidence score shown on a scan.

CookieYii CSRF/identity cookie
Script SrcYii framework scripts

Detecting Yii also implies PHP.

Websites using Yii

Recently scanned websites where we detected Yii. Open one to see its full technology stack.

www.nike.com11 technologies · 8 d ago

cloudflare.com7 technologies · 8 d ago

Often used with Yii

Technologies most frequently detected alongside Yii across scanned websites.

PHPLanguage2 sites Next.jsFramework1 site AkamaiCDN1 site cdnjsCDN1 site ZendeskLive Chat1 site New RelicMonitoring1 site ReactFramework1 site EmotionUI Library1 site

Alternatives to Yii

Other Framework technologies Tech Stack Detector detects: popular alternatives and related tools, most-detected first.

ReactFramework165 sites Next.jsFramework124 sites LaravelFramework27 sites AstroFramework19 sites Vue.jsFramework14 sites NuxtFramework8 sites ASP.NETFramework7 sites Ruby on RailsFramework6 sites DjangoFramework4 sites Express.jsFramework4 sites SvelteFramework4 sites FastAPIFramework3 sites

Compare Yii

Side-by-side comparisons of Yii with other Framework technologies.

Yii vs React Yii vs Next.js Yii vs Laravel Yii vs Astro Yii vs Vue.js

Popular technologies

The technologies most often detected across all websites scanned on Tech Stack Detector.

CloudflareCDN247 sites Google FontsFont215 sites Tailwind CSSUI Library170 sites ReactFramework165 sites Progressive Web AppOther147 sites PHPLanguage139 sites Node.jsLanguage136 sites Next.jsFramework124 sites BootstrapUI Library119 sites Google WorkspaceOther110 sites

Frequently asked questions

What is Yii?

Yii is a web framework: High-performance PHP framework. Tech Stack Detector identifies Yii on any website by analysing cookies and script URLs. Its official website is https://yiiframework.com.

How can I tell if a website uses Yii?

Enter any URL into Tech Stack Detector and it reports whether Yii is present, with a confidence score and the exact evidence it matched. Detection is based on cookies and script URLs. No login or crawling of the site is required.

What does detecting Yii imply?

When Yii is detected, Tech Stack Detector also infers PHP, because Yii is built on top of it.

How many websites use Yii?

Yii has been detected on 2 websites in the public Tech Stack Detector scan index. This reflects sites that visitors have analysed here, not global market share.

What are some alternatives to Yii?

Other Framework technologies Tech Stack Detector detects include React, Next.js, Laravel, Astro, Vue.js and Nuxt. You can compare any of them side by side with Yii.

Data last updated October 20, 2026 · based on 618 recently scanned websites.