Stackscan

StackScan is a technographic search engine that lets you find companies based on the technology they run. It indexes over 360 million websites and detects more than 55,000 technologies — from CMS platforms and ecommerce engines to analytics tools and payment processors. You can search by a single technology, a combination of stacks, keywords in page content, or location, then export the results as a CSV or XLS file. The goal is simple: turn technology choices into qualified prospect lists.

The platform offers three main tools. Tech Lookup lets you pick any technology and see its global footprint — total sites, country distribution, and the full domain list. Keyword Scan searches titles, meta descriptions, and page content across the index, so you can find sites by niche or business type. Reports & Export turns every search into a downloadable report with up to 20 data points per domain, including company name, social links, and estimated spend. You can combine filters like country, TLD, and firmographics to narrow down to your exact ideal customer profile. The index refreshes continuously, so the data stays current.

StackScan is built for sales teams, marketers, and SaaS founders who need to find leads fast. Common use cases include building lists of Shopify stores using Klaviyo, finding all Zendesk customers with 50–500 employees, or discovering law firms and dental clinics in a specific region. It's also used for competitor intelligence — seeing who runs a rival's product — and for platform migration outreach. Pricing starts at $39 per month, which is significantly cheaper than comparable tools. Setup takes under two minutes, and there are no long-term contracts.