Wappalyzer

Summary

Wappalyzer is a technology profiling and lead generation platform that instantly reveals any website's tech stack (CMS, ecommerce, payment systems, etc.) and provides company and contact details to help sales, marketing, and research teams build targeted lists.

What is Wappalyzer?

Wappalyzer analyzes the technologies websites use, including content management systems, ecommerce platforms, analytics tools, payment processors, and more. Users can filter by technology, industry, traffic, and location to build lead lists, export company and contact details, and access real-time data via APIs, browser extensions, or CRM integrations (Salesforce, HubSpot, Pipedrive).

Core Capabilities

• Technology identification: Instant lookups of website tech stacks and version numbers
• Lead lists: Create and export lists by technology, industry, traffic, location (with company and contact details)
• Website monitoring: Track competitor technology changes with same-day notifications
• Email verification: Check mail server connectivity and inbox availability to prevent bounces
• API access: Real-time and bulk technology lookups (up to 100,000 at once)
• CRM integration: Display lead tech stacks in Salesforce, HubSpot, Pipedrive, Semrush
• Browser extensions: Real-time technology display in Chrome, Firefox, Edge, Safari

Pros

• 50 free monthly lookups and email verifications
• Tracks millions of companies globally with fresh, accurate data
• Supports bulk lookups (up to 100,000 websites) and instant APIs
• Integrates with major CRMs and automation tools (Zapier, Make, Pabbly)
• Provides traffic markers and social media profiles for precise filtering

Cons

• Free tier is limited; high-volume lookups require paid plans
• Contact data coverage varies by region
• Technology detection relies on publicly visible website elements
• No built-in outreach or email sending features
• Advanced features (monitoring, API) require additional payment

Decision Guidance

Use Wappalyzer when: Your sales or marketing team needs to find prospects by tech stack, you're conducting market research or competitor analysis, or you need to enrich CRM data with technology insights.

Consider alternatives when: You need deep company financials or decision-maker contacts (explore ZoomInfo, Apollo), or you primarily need outreach automation rather than technology identification.