> ## Documentation Index
> Fetch the complete documentation index at: https://technologychecker.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Technology intelligence platform for sales, GTM, and market analysis teams

> Detect 40,000+ technologies across 50M+ domains. Real-time subscriber and churn signals, verified decision-maker contacts, custom audience exports, and 20+ years of historical data for B2B sales, GTM, and market analysis teams.

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 <Tooltip tip="Detects frontend frameworks, backend infrastructure, and standalone SaaS platforms — not just browser-visible libraries." cta="Learn more" href="/differentiators#full-stack-detection">full-stack detection</Tooltip>, then pair that data with real-time subscriber and churn signals, verified decision-maker contacts, custom audience exports, and **20+ years** of historical data.

<CardGroup cols={4}>
  <Card title="40,000+" icon="microchip">
    Technologies detected
  </Card>

  <Card title="50M+" icon="globe">
    Domains monitored
  </Card>

  <Card title="20+ years" icon="clock-rotate-left">
    Historical data
  </Card>

  <Card title="95%+" icon="bullseye">
    Detection accuracy
  </Card>
</CardGroup>

<img src="https://mintcdn.com/technologychecker/EoFefZgIvEggxecX/images/dashboard.jpg?fit=max&auto=format&n=EoFefZgIvEggxecX&q=85&s=a1c6f229fd1b50816a518f239afdb385" alt="TechnologyChecker dashboard showing 1.5B crawled URLs, 40K technologies detected, and 20 years of historical data with quick-access use case cards" width="1600" height="938" data-path="images/dashboard.jpg" />

## Get started

<CardGroup cols={2}>
  <Card title="Quickstart" icon="rocket" href="/quickstart">
    Create your account, scan your first domain, and explore results in under 2 minutes.
  </Card>

  <Card title="API reference" icon="code" href="/api-reference/introduction">
    Integrate technology data into your <Tooltip tip="Customer Relationship Management — software like Salesforce, HubSpot, or Pipedrive used to manage sales pipelines and customer data.">CRM</Tooltip>, scoring models, or internal tools.
  </Card>
</CardGroup>

## Platform features

<Columns cols={2}>
  <Card title="Technologies" icon="microchip" href="/features/technologies">
    Browse 40,000+ technologies across 50M+ domains with market share charts, growth trends, and category breakdowns.
  </Card>

  <Card title="Domain lookup" icon="magnifying-glass" href="/features/domain-lookup">
    Scan any website to see its full technology stack (frontend, backend, and standalone tools) with company metadata and detection timeline.
  </Card>

  <Card title="Lead lists" icon="list-check" href="/features/lead-lists">
    Build targeted prospect lists combining technology filters with firmographic data, verified decision-maker contacts, and custom audience exports.
  </Card>

  <Card title="Market research" icon="chart-line" href="/features/market-research">
    Analyze market share, quarterly growth, long-term adoption trends, and ICP patterns across categories with 20+ years of data.
  </Card>

  <Card title="Signals" icon="bolt" href="/features/signals">
    Get real-time alerts when prospects subscribe to or churn from any technology. Includes verified contacts and replacement detection.
  </Card>

  <Card title="Our data" icon="server" href="/features/our-data">
    Multi-layered crawling infrastructure with 500M+ domains indexed and 50M+ actively monitored.
  </Card>
</Columns>

## Who uses TechnologyChecker?

<Tabs>
  <Tab title="Sales teams">
    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 <Tooltip tip="Company data including industry, employee count, location, founded year, and company type — sourced from LinkedIn company profiles.">firmographic</Tooltip> filters.

    **Popular features:** [Lead lists](/features/lead-lists) | [Domain lookup](/api-reference/introduction#domain-technologies) | [Company search](/api-reference/introduction#company-data)
  </Tab>

  <Tab title="Growth and GTM">
    Build <Tooltip tip="Ideal Customer Profile — a description of the type of company that gets the most value from your product, based on attributes like size, industry, and technology usage.">ICP</Tooltip> profiles from real adoption data. Export technology-segmented email lists for custom audience ad targeting on LinkedIn and Facebook, and run campaigns based on tech stack fit and subscriber/churn signals.

    **Popular features:** [Lead lists](/features/lead-lists) | [Market research](/features/market-research) | [Signals](/features/signals)
  </Tab>

  <Tab title="Market analysts">
    Analyze technology adoption trends over 20 years, track competitive market share, and spot emerging technologies by subscriber growth rate. This is the kind of data enterprise platforms charge $50K+/year for. Starts at $89/month.

    **Popular features:** [Market research](/features/market-research) | [Technologies](/features/technologies) | [Signals](/features/signals)
  </Tab>

  <Tab title="Customer success">
    Monitor customer tech stacks for churn signals. Get alerts when accounts adopt competing platforms and proactively address migration concerns before renewal. Use historical data to predict which technology changes correlate with churn.

    **Popular features:** [Signals](/features/signals) | [Domain lookup](/features/domain-lookup) | [Technology history](/api-reference/introduction#domain-technologies)
  </Tab>

  <Tab title="Developers">
    Integrate technology detection into your applications with a <Tooltip tip="Representational State Transfer — an architectural style for web APIs that uses standard HTTP methods (GET, POST, PUT, DELETE) to interact with resources.">RESTful</Tooltip> API, batch endpoints, and real-time live detection.

    **Get started:** [Authentication](/api-reference/authentication) | [API reference](/api-reference/introduction) | [Live detection](/api-reference/introduction#live-detection)
  </Tab>
</Tabs>

## Pricing

<CardGroup cols={3}>
  <Card title="Free" icon="circle-check">
    **\$0/month** — 100 credits

    Get started with basic access to all features. No credit card required.
  </Card>

  <Card title="Pro" icon="star">
    **\$89/month** — 10,000 credits

    Full access with higher rate limits. Yearly: \$890/year (save 17%).
  </Card>

  <Card title="Scale" icon="rocket">
    **\$249/month** — 50,000 credits

    Maximum throughput for teams. Yearly: \$2,490/year (save 17%).
  </Card>
</CardGroup>

<Tip>
  All plans include access to every API endpoint and platform feature. Plans differ only in credit volume and rate limits. See [full pricing details](https://technologychecker.io/pricing), [credit costs per endpoint](/api-reference/credits#how-much-does-each-endpoint-cost), and [rate limits by plan](/api-reference/rate-limits#limits-by-plan).
</Tip>

<CardGroup cols={2}>
  <Card title="Start for free" icon="arrow-up-right-from-square" href="https://app.TechnologyChecker.io/auth/sign-up">
    Create your account and get 100 free API credits — no credit card required.
  </Card>

  <Card title="Try without signing up" icon="magnifying-glass" href="https://technologychecker.io">
    Search any website's technology stack and company data directly from the homepage.
  </Card>
</CardGroup>

## Company

TechnologyChecker was founded by [Mehmet Suleyman](https://technologychecker.io/authors/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.

<CardGroup cols={3}>
  <Card title="About us" icon="building" href="https://technologychecker.io/about">
    Our mission, team, and the story behind the platform.
  </Card>

  <Card title="Pricing" icon="tag" href="https://technologychecker.io/pricing">
    Compare plans, features, and credit volumes.
  </Card>

  <Card title="Changelog" icon="newspaper" href="https://technologychecker.io/updates">
    Product updates, new features, and improvements.
  </Card>
</CardGroup>

## Frequently asked questions

<AccordionGroup>
  <Accordion title="What is TechnologyChecker?">
    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.
  </Accordion>

  <Accordion title="How much does TechnologyChecker cost?">
    Three plans: **Free** ($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](/api-reference/rate-limits). Yearly billing saves 17%. See [credits](/api-reference/credits) for endpoint costs.
  </Accordion>

  <Accordion title="Can I try TechnologyChecker for free?">
    Yes. The Free plan gives you 100 API credits with no credit card required. Sign up at [app.TechnologyChecker.io](https://app.TechnologyChecker.io/auth/sign-up) and start scanning domains right away.
  </Accordion>

  <Accordion title="What technologies does TechnologyChecker detect?">
    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](/features/technologies).
  </Accordion>

  <Accordion title="How is TechnologyChecker different from Wappalyzer or BuiltWith?">
    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](/features/comparison) with Wappalyzer, BuiltWith, 6sense, HG Insights, TheirStack, and Bloomberry.
  </Accordion>
</AccordionGroup>