Know what tech your prospects use. Know when they switch. Know who to call. 40K+ technologies, 50M+ domains, real-time alerts, verified contacts.
50M+ tracked domains · 40K+ technologies tracked · Live detection for any website
Trusted by leading teams from Generative AI, Hosting, Payments, Streaming
Multi-signal fingerprinting with headless rendering for accurate technology identification.
Entity resolution connects domains to decision-makers with verified email deliverability.
Detect backend infrastructure and standalone tools that signal real buying intent.
Real-time alerts and CRM automation turn technology signals into revenue opportunities.
The deepest dataset in the industry—full-stack visibility across frontend, backend, and standalone tools.
Industrial-strength tools that integrate with your entire workflow.
Multi-signal fingerprinting with headless rendering for accurate technology identification.
Real-time alerts and CRM automation turn technology signals into revenue opportunities.
Entity resolution connects domains to decision-makers with verified email deliverability.
The deepest dataset in the industry—full-stack visibility across frontend, backend, and standalone tools.
Detect backend infrastructure and standalone tools that signal real buying intent.
Industrial-strength tools that integrate with your entire workflow.
Stay up to date with the latest in technology detection, market trends, and product updates.
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"With Technologychecker's 20-year dataset, we discovered that SaaS companies switching from WordPress to headless CMS averaged 78% faster site speeds and 23% better conversion rates—historical context that completely changed our technical positioning"
Shane Murphy
Head of Product Marketing, Webflow
“TechnologyChecker's backend detection caught that 73% of our churned customers switched to Workday within 90 days—tools like Wappalyzer would never see that. Now we get real-time alerts when prospects adopt competing HR platforms and have verified contacts to reach decision-makers immediately.”
Luca Rossi
Head of Customer Success, Horilla
“We've completely transformed our ICP targeting with TechnologyChecker's technographic data. Being able to see exactly which tools prospects are using has increased our conversion rates by 40%.”
Mert Aktas
Head of Growth, Userguiding
“Knowing that BambooHR was capturing 45% of our SMB churn helped us launch a targeted retention program that cut small business churn in half.”
Maya Thompson
Head of Growth, PeopleOps Pro
“The historical data is incredible—we can predict which companies are likely to churn based on technology adoption patterns. Our retention campaigns are now data-driven instead of reactive.”
Sarah Martinez
Growth Operations Manager, CustomerFlow
“We used TechnologyChecker.io to analyze 500+ companies that switched from legacy HRIS to modern platforms—the insights shaped our entire go-to-market strategy for enterprise accounts.”
Nia Patel
VP of Sales, NextGen Agency
“We've built custom lead scoring models using TechnologyChecker.io's API data. Our MQLs are now 60% more likely to convert because we're scoring based on actual technology fit.”
James Wilson
Head of Marketing Operations, DemandFlow
TechnologyChecker.io is a comprehensive technology lookup and detection platform that helps you identify what technologies websites are using. It provides real-time data on 40,000+ technologies across 50M+ domains.
Our platform uses multiple detection methods including HTTP header analysis, JavaScript fingerprinting, HTML parsing, and DNS lookups to accurately identify technologies used by any website.
TechnologyChecker offers deeper insights with historical data, real-time alerts, verified contacts, and comprehensive API access. We detect more technologies with higher accuracy and provide actionable sales intelligence.
Our platform maintains over 95% accuracy through multiple validation methods including real-time crawling, signature matching, and cross-referencing with multiple data sources.
We detect 40,000+ technologies including CMS platforms, ecommerce solutions, analytics tools, marketing automation, CDNs, payment processors, frameworks, programming languages, and hosting providers.
Yes! We maintain historical records of technology changes across domains, allowing you to track when websites adopt or switch technologies, perfect for competitive analysis and market research.
Absolutely. We only analyze publicly accessible website data and signatures. We never access private information and maintain full compliance with GDPR, CCPA, and other privacy regulations.
Sales teams use our platform to identify prospects using specific technologies, track competitor customers, receive alerts when companies switch tools, and access verified contact data for outreach.
Marketing teams leverage TechnologyChecker for competitive analysis, market sizing, identifying integration partners, tracking industry adoption trends, and building targeted prospect lists.
Our data comes from continuous crawling of public websites, analyzing HTTP responses, JavaScript signatures, and DNS records. We scan millions of domains regularly to maintain fresh, accurate data.
We only detect technologies visible in public-facing websites. Internal tools, private applications, and backend systems that don't expose signatures publicly are not detectable.
Start detecting technology stacks instantly—verified contacts included. Free trial, no commitment.
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