StackDetect vs Wappalyzer

StackDetect detects and catalogs technologies used by websites, then lets users search, filter, and export prospect lists based on those technologies. It covers CMS platforms, WordPress plugins, ecommerce apps, analytics, advertising pixels, JavaScript frameworks, CDNs, payment gateways, CRMs, and more. Lead lists group websites by the tools they use for outreach, enrichment, or analysis. Each record includes a hostname, detected technologies and categories, confidence, HTTPS status, and last-seen date. Data comes from public pages through a browser extension and proprietary crawler; private or authenticated content is not accessed. The extension collects visited hostnames and detected technologies, not page content, form data, passwords, or personally identifiable information. Detection depends on public fingerprints and varies by technology; less-visited sites may have data weeks old. The free plan costs nothing and includes 50 technology lookups per month and sample lead lists. Paid plans include bulk exports and advanced filters; Business and Enterprise add CRM enrichment and API keys. Each API lookup uses one credit. Included API credits expire after 60 days; purchased top-ups do not.

Wappalyzer turns public website signals into technographic data for prospecting, record enrichment and monitoring market changes. It identifies thousands of technologies across millions of websites using signals such as HTML, scripts, headers, cookies and other fingerprints. Users can upload CSV or TXT files with up to 100,000 URLs for bulk analysis. APIs cover technology lookup, lead lists, subdomain discovery and email verification. Live results count as five lookups each; cached results are verified within the last 30 days. The service offers browser extensions and integrations including Salesforce, HubSpot, Pipedrive, Gmail, Zapier, Make and an iPhone app. Basic extension detection runs locally, and sharing limited website-level data can be disabled in settings. The free plan includes 50 technology lookups and 50 email verifications per month, five website alerts and sample lead lists. Pro costs $250 a month for one user. Plan-included API credits expire after 60 days, while credits bought in bundles expire after 365 days. Wappalyzer is aimed at sales, marketing, operations, strategy, partnerships and security teams.