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TechnologyChecker helps sales, GTM, and market analysis teams turn technology signals into pipeline. We detect 40,000+ technologies across frontend, backend, and standalone platforms using , then pair that data with real-time subscriber and churn signals, verified decision-maker contacts, custom audience exports, and 20+ years of historical data.

40,000+

Technologies detected

50M+

Domains monitored

20+ years

Historical data

95%+

Detection accuracy
TechnologyChecker dashboard showing 1.5B crawled URLs, 40K technologies detected, and 20 years of historical data with quick-access use case cards

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Get started

Quickstart

Create your account, scan your first domain, and explore results in under 2 minutes.

API reference

Integrate technology data into your , scoring models, or internal tools.

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Platform features

Technologies

Browse 40,000+ technologies across 50M+ domains with market share charts, growth trends, and category breakdowns.

Domain lookup

Scan any website to see its full technology stack (frontend, backend, and standalone tools) with company metadata and detection timeline.

Lead lists

Build targeted prospect lists combining technology filters with firmographic data, verified decision-maker contacts, and custom audience exports.

Market research

Analyze market share, quarterly growth, long-term adoption trends, and ICP patterns across categories with 20+ years of data.

Signals

Get real-time alerts when prospects subscribe to or churn from any technology. Includes verified contacts and replacement detection.

Our data

Multi-layered crawling infrastructure with 500M+ domains indexed and 50M+ actively monitored.

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Who uses TechnologyChecker?

Find companies using competitor products and get real-time alerts when prospects subscribe to or drop tools. Reach decision-makers with verified contacts, then build lead lists that combine technology signals with filters.Popular features: Lead lists | Domain lookup | Company search

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Pricing

Free

$0/month — 100 creditsGet started with basic access to all features. No credit card required.

Pro

$89/month — 10,000 creditsFull access with higher rate limits. Yearly: $890/year (save 17%).

Scale

$249/month — 50,000 creditsMaximum throughput for teams. Yearly: $2,490/year (save 17%).
All plans include access to every API endpoint and platform feature. Plans differ only in credit volume and rate limits. See full pricing details, credit costs per endpoint, and rate limits by plan.

Start for free

Create your account and get 100 free API credits — no credit card required.

Try without signing up

Search any website’s technology stack and company data directly from the homepage.

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Company

TechnologyChecker was founded by Mehmet Suleyman (CEO & Co-founder). The goal: give sales, GTM, and market analysis teams the same depth of technology data that used to cost $50K+/year through enterprise platforms.

About us

Our mission, team, and the story behind the platform.

Pricing

Compare plans, features, and credit volumes.

Changelog

Product updates, new features, and improvements.

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Frequently asked questions

TechnologyChecker detects 40,000+ technologies across 50M+ domains, covering frontend frameworks, backend infrastructure, and standalone SaaS platforms. It’s built for B2B sales, GTM, and market analysis teams. You get technology detection paired with real-time subscriber and churn signals, verified decision-maker contacts, custom audience exports, and 20+ years of historical data for ICP analysis.
Three plans: Free (0/month,100credits),∗∗Pro∗∗(0/month, 100 credits), **Pro** (89/month, 10,000 credits), and Scale ($249/month, 50,000 credits). Every plan includes access to every API endpoint and platform feature. The only difference is credit volume and rate limits. Yearly billing saves 17%. See credits for endpoint costs.
Yes. The Free plan gives you 100 API credits with no credit card required. Sign up at app.TechnologyChecker.io and start scanning domains right away.
TechnologyChecker detects 40,000+ technologies across ten categories: frontend frameworks (React, Vue, WordPress), backend infrastructure (Node.js, Django, databases), standalone platforms (Airtable, Notion, Zapier), marketing and sales tools (HubSpot, Salesforce), infrastructure (AWS, Cloudflare), analytics and payments (Google Analytics, Stripe), HR and operations (Workday, BambooHR, Rippling), project management (Asana, ClickUp, Linear), and customer support (Zendesk, Freshdesk, Intercom). Browse the full catalog at technologies.
TechnologyChecker detects frontend, backend, and standalone technologies, not just browser-visible libraries. It includes real-time subscriber and churn signals, verified decision-maker contacts, custom audience exports, 20-year historical data for ICP analysis, and native CRM integrations. Wappalyzer is a browser extension tracking ~8,000 frontend technologies. BuiltWith has the largest database but doesn’t include contacts, real-time signals, or sales workflows. See detailed comparisons with Wappalyzer, BuiltWith, 6sense, HG Insights, TheirStack, and Bloomberry.