Discover technologies powering any website
A powerful tool for analyzing websites to detect their underlying technologies, including frameworks, libraries, hosting providers, CMS platforms, and more. Get detailed insights with performance metrics and security analysis.
The Tech Stack Detector now includes intelligent URL auto-correction that automatically fixes common URL issues before analysis. This feature ensures a smoother user experience and reduces errors from incorrect URL formats.
Automatically adds https:// when protocol is missing
example.com → https://example.com
Properly handles URLs with or without www prefix
www.example.com → https://www.example.com
Removes duplicate slashes and cleans up paths
example.com//path → https://example.com/path
Decodes encoded URLs for better readability
example.com%20test → https://example.com test
How It Works: When you enter a URL, the auto-correction feature analyzes it and automatically applies necessary fixes. You'll see a preview showing the original URL, the corrected URL, and what corrections were made. You can choose to proceed with the corrected URL or cancel and enter a different URL.
https://example.comexample.comwww.example.comexample.com/blogNote: URL auto-correction also works automatically in the background for batch analysis. Each URL in a batch is processed to ensure consistent format before analysis.
The Tech Stack Detector analyzes websites to identify the technologies they use, including frameworks, content management systems, hosting platforms, analytics tools, and more. It provides confidence scores for each detected technology and offers performance and security insights.
Tip: Use the Dashboard link to access additional analytics and insights about your analysis history.
The primary feature allows you to analyze any website by entering its URL. The tool will fetch and analyze the website to detect its technology stack.
Enter a URL - the tool will automatically add https:// if needed
example.com (auto-corrected to https://example.com)
Your URL will be automatically corrected if needed. You'll see a preview showing what corrections were made before analysis.
Note: Some websites may block automated requests or require specific headers. If analysis fails, try a different URL or check if the website is accessible.
During analysis, a progress bar shows the current status. The analysis includes:
The Tech Stack Detector supports multiple ways to input URLs, including drag & drop and paste functionality for a seamless user experience.
Simply paste a URL (Ctrl+V / Cmd+V) directly into the input field
Paste: https://example.com → Auto-detected
Drag and drop a URL directly onto the input area
Drop: URL → Auto-detected
Drop a .txt or .url file containing a URL
Drop: urls.txt → Extracts first URL
Drag a URL directly from your browser's address bar
Drop link → Auto-extracted
Mobile Tip: On mobile devices, tap and hold in the input field to access the paste menu with your clipboard contents.
Note: When dropping files, only text-based files (.txt, .url) are supported. Image files and other binary formats will not be processed.
Analyze multiple websites at once using the batch analysis feature. This is useful for comparing competitors, auditing multiple sites, or building a technology database.
https://example1.com https://example2.com https://example3.com
Tip: Batch analysis processes URLs sequentially. For large batches, the analysis may take several minutes. Results are saved to your history automatically.
The Overview tab displays detected technologies organized by category. Each category shows the top technologies with their confidence scores.
Shows load time in milliseconds and page size in kilobytes. These metrics help assess the website's performance characteristics.
Technologies are grouped by category: Frameworks, CMS, Hosting, Analytics, Marketing, and more. Each category displays the top 3 detected technologies.
React, Vue, Angular, Next.js, Nuxt, etc.
WordPress, Shopify, Wix, Ghost, etc.
Vercel, Netlify, AWS, Cloudflare, etc.
Google Analytics, Mixpanel, Hotjar, etc.
The Detailed tab provides comprehensive information about each detected technology, including version information, descriptions, and links to official websites.
The exact name of the detected technology
Detected version number when available
Percentage indicating detection certainty
Brief description of the technology
Link to the official technology website
Confidence Score: Technologies are detected with varying confidence levels. Higher confidence indicates stronger evidence from HTML patterns, JavaScript files, and resource headers.
Confidence levels are now displayed using visual progress bars instead of just percentages, making it easier to quickly assess detection reliability at a glance.
Strong detection with clear evidence
Moderate detection with some indicators
Weak detection with limited evidence
Progress bars use color-coding to indicate confidence levels: green for high confidence, yellow for medium, and orange for low. This visual representation helps users quickly identify which technologies were detected with certainty.
The new Relationships tab displays a visual diagram showing how detected technologies connect and relate to each other. This helps understand the technology stack architecture at a glance.
Technologies are grouped by category: Frontend, Backend, Database, Hosting, etc.
Each technology shows its detection confidence percentage
Zoom in/out and reset view for better visibility
Switch between stack view (mobile) and flow view (desktop)
The diagram automatically detects relationships between technologies based on common technology stacks. For example:
Frontend framework commonly used with backend runtime
Full-stack framework often paired with relational database
PHP framework with common database pairing
CMS built on server-side language
Tip: Use the zoom controls and view mode toggle to customize the diagram display. The list view provides a compact overview of all detected technologies grouped by category.
Note: Relationship detection is based on common technology stack patterns. Not all relationships may be relevant for every website. The diagram shows potential connections based on typical technology combinations.
The Security tab provides insights into the website's security configuration, including HTTPS status and security headers.
Indicates whether the website uses HTTPS encryption. A secure connection is shown with a green badge, while insecure connections are marked with a red badge.
Lists detected security headers such as Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, and Strict-Transport-Security.
Warning: Websites without HTTPS may expose user data to interception. Security headers help protect against common attacks like XSS and clickjacking.
All analyses are saved to your history, allowing you to revisit previous results, search through analyses, and filter by category.
Search through history by URL, title, or technology name
Filter results to show only analyses containing specific technology categories
Mark important analyses with a star for quick access
Remove unwanted analyses from history
Tip: Use the History panel to track changes in a website's tech stack over time by re-analyzing and comparing results.
Compare multiple websites side-by-side to analyze their technology stacks, performance metrics, and detect patterns or differences.
Export analysis results for external use, reporting, or integration with other tools. Two formats are supported: JSON and CSV.
Exports complete analysis data including all detected technologies, performance metrics, and security information.
{
"url": "https://example.com",
"title": "Example",
"techStack": [...],
"performance": {...},
"security": {...},
"timestamp": "2024-01-01T00:00:00Z"
}Exports a flattened table format suitable for spreadsheets and data analysis tools.
"URL","Title","Technologies","Load Time","Page Size","HTTPS","Timestamp"
Use Case: Export analysis data to track technology trends, generate reports, or integrate with external analysis tools.
The Tech Stack Detector now includes version detection for detected technologies. When version information is available from the website analysis, it will be displayed alongside the technology name, helping you understand exactly which version of a technology is in use.
Versions shown in the detailed technology list with confidence bars
React 18.2.0
Compact badge view showing technology + version together
React 18.2.0
Version info preserved in analysis history
React 18.2.0
Versions included in JSON/CSV exports
"React 18.2.0"
How It Works: Version detection is performed during the website analysis. The analyzer examines script tags, meta tags, and other indicators to identify specific versions. When versions are detected, they are displayed with the technology name. Some websites may not expose version information, in which case only the technology name will be shown.
Note: Version detection accuracy depends on what information websites publicly expose. Not all websites make version information available. The confidence score indicates how certain the detection is, regardless of whether a version was found.
Analyze competitor websites to understand their technology choices, identify trends in your industry, and benchmark your own stack.
Evaluate third-party vendors and partners by examining their technology implementations before engaging in business relationships.
Check websites for security configurations, HTTPS usage, and security header implementations as part of security assessments.
Quickly identify technologies used by websites during reconnaissance for projects, integrations, or research purposes.
Analyze a list of websites to build a comprehensive view of technology adoption patterns across an industry or market segment.
Understand legacy technology stacks to plan migrations and identify dependencies before undertaking modernization projects.