Weblyzer - Web Analyzer
Detect the front-end, back-end, CDN, hosting and API technologies behind any website - all locally in your browser.
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Weblyzer tells you exactly what a website is built with - and, unlike most detectors, how its back-end, hosting, security and performance hold up - entirely in your browser. No backend server, no account, no tracking.
Click the toolbar icon on any site and Weblyzer identifies its stack instantly, grouped into clear categories with a real vendor logo, detected version and confidence level for each technology. A number badge on the icon shows the count before you even open the popup.
WHAT IT DETECTS
Weblyzer recognises more than 420 technologies across over 20 categories: front-end frameworks, UI and CSS libraries, back-end languages, web servers, cloud platforms, CDNs and API gateways, cloud storage, CMS and e-commerce platforms, analytics and marketing tools, authentication and identity providers, and payment processors. Each result shows its category, the detected version where available, and how confident the detection is - so you understand a site's architecture at a glance instead of guessing.
SITE HEALTH, SCORED LOCALLY
- Security grade (A+ to F) - audits common response-security headers and flags version or information leaks
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