Private local front-end auditor, technology detector, security scanner, and evidence-based website intelligence tool.
Users
6
−1 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#229K
#192K among extensions
Version
1.0
updated 9 Jul 2026
Users
monthly, 3 months
Latest, 16 Oct 2026:6 usersMove the mouse over the chart for any month
Ratings count
monthly, 3 months
Latest, 16 Oct 2026:2 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Mystery Tag
Mystery Tag - Local Front-End Tech Inspector
Mystery Tag is a lightweight, privacy-focused extension built for developers, designers, and web professionals to inspect and understand the front-end architecture of any webpage.
🚀 KEY FEATURES:
• Technology Stack Detection: Instantly identify front-end frameworks, UI libraries, active Content Management Systems (CMS), and e-commerce platforms.
• Architecture & Infrastructure: Detect content delivery networks (CDNs), routing layers, and modern deployment nodes.
• Third-Party Integrations: Map client-side connections to popular backend services, BaaS providers, and cloud architectures to optimize your server-side logic.
• Configuration & Quality Audit: Quickly check for public source maps, structural patterns, and deployment configurations to ensure clean, professional web builds.
⚡ TWO VIEWING MODES:
• Simple Mode: A clean, high-level overview of the technology stack and immediate development insights for quick reviews.
• Advanced Mode: A detailed technical dashboard rendering exact confidence levels, code evidence, and structural logs for deep analysis.
🔒 PRIVACY-FIRST BY DESIGN
Mystery Tag operates 100% locally in your browser.
• No user accounts or external sign-ins required.
• No external APIs or remote tracking servers.
• Only analyzes the active tab when explicitly triggered by the user.
Perfect for developer audits, competitive analysis, and front-end performance optimization.