JavaScript Libraries
Detect jQuery, React, Vue, Angular, and other popular JavaScript frameworks and libraries.
Check if a company's website has specific features, technologies, or capabilities
Try it free — no credit card required
Check for technologies, compliance badges, and capabilities on any website
Detect jQuery, React, Vue, Angular, and other popular JavaScript frameworks and libraries.
Check for SOC 2, ISO 27001, GDPR compliance, HIPAA badges, and other security certifications.
Identify Cloudflare, WordPress, AWS, Shopify, Stripe, and other infrastructure technologies.
Detect live chat widgets, SSO support, Salesforce integration, API access, and more.
Get high, medium, or low confidence levels for each detection based on signal strength.
Receive detailed explanations of how each feature was detected on the website.
See what features and technologies you can check for
Get accurate results in three simple steps
Provide a company name or domain and the feature to check for in the form above
Our system scans the company's website for the specified technology or feature in real-time
Receive detection result, confidence level, and supporting evidence in seconds
Trusted by sales, marketing, and security teams worldwide
Verify if prospects use specific technologies before outreach for better lead qualification
Discover what technologies and features competitors offer to stay ahead of the market
Confirm vendors have required security certifications like SOC 2, ISO 27001, and GDPR
Integrate technology detection into your applications via our powerful REST API
The Feature Checker can detect JavaScript libraries (jQuery, React, Vue), security compliance badges (SOC 2, ISO 27001, GDPR, HIPAA), technology stack (Cloudflare, WordPress, AWS, Shopify), and features/integrations (live chat, SSO, API access, Salesforce integration).
High confidence means clear, direct indicators were found (e.g., explicit badges, script tags). Medium confidence indicates strong indirect signals. Low confidence means some hints were observed but the evidence is limited.
Most checks complete within 10-30 seconds. The tool analyzes the company's website in real-time to provide accurate, up-to-date results.
Yes! We offer a free trial that lets you test the feature checker tool with no credit card required. Sign up and start detecting technologies immediately to see the quality of results.
Absolutely! In addition to this web tool, we offer a full REST API for automated feature checking. Integrate it into your CRM, marketing automation, or custom applications. Check out our API documentation for details.
Our tool provides real-time analysis with confidence scoring and detailed evidence for each detection. You can check for any specific technology or feature, not just predefined categories. Plus, it integrates with our full B2B data intelligence platform for comprehensive company insights.