> ## 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.

# What are the differentiators of TechnologyChecker?

> Full-stack detection across 40,000+ technologies, real-time subscriber and churn signals, company + contact data per technology, custom audience exports, 20-year historical data for ICP analysis, and verified contacts. See how we compare to Wappalyzer, BuiltWith, 6sense, HG Insights, TheirStack, and Bloomberry.

TechnologyChecker detects 40,000+ technologies and pairs that data with the context sales, GTM, and market analysis teams actually need: real-time subscriber and churn signals, verified decision-maker contacts, custom audience exports, and 20+ years of historical data for ICP analysis.

<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>

***

## Built for sales, GTM, and market analysis teams

<Tabs>
  <Tab title="The difference">
    Most technology detection tools are built for developers. They're browser extensions that show what JavaScript framework a site uses. TechnologyChecker is different: it's a revenue and market intelligence platform for <Tooltip tip="Business-to-Business — companies that sell products or services to other businesses rather than individual consumers.">B2B</Tooltip> sales workflows, GTM campaign targeting, and market analysis.

    | Capability               | Developer tools    | TechnologyChecker                            |
    | ------------------------ | ------------------ | -------------------------------------------- |
    | Technology detection     | Frontend only      | Full-stack (frontend + backend + standalone) |
    | Subscriber/churn signals | Not available      | Real-time detection with alerts              |
    | Contact data             | Not included       | Verified decision-maker emails               |
    | Custom audience exports  | Not available      | LinkedIn, Facebook, Google Ads               |
    | Company + people data    | Not available      | Both per technology                          |
    | Historical data          | Current state only | 20 years of adoption data                    |
    | ICP analysis             | Not available      | Pattern analysis from historical data        |
    | CRM integration          | Not available      | Native Salesforce, HubSpot, Pipedrive        |
    | Bulk operations          | Limited            | Up to 100K domains                           |
  </Tab>

  <Tab title="Sales workflows">
    Every feature connects back to revenue outcomes:

    * **Subscriber/churn signals → immediate action** — Know the moment companies adopt or drop technologies
    * **Technology signals → verified contacts** — Know what prospects use and who to reach
    * **Custom audience exports → ad targeting** — Export technology-segmented contacts for LinkedIn and Facebook ads
    * **Historical data → ICP analysis** — Identify technology patterns that predict your best customers
    * **Real-time alerts → buying windows** — Get notified during active evaluation periods
    * **Bulk enrichment → pipeline building** — Enrich thousands of accounts at once
    * **CRM automation → workflow integration** — Sync technology data to your existing tools
  </Tab>

  <Tab title="Who uses it">
    **Sales development (<Tooltip tip="Sales Development Representatives — reps focused on outbound prospecting, qualifying leads, and booking meetings for account executives.">SDRs</Tooltip>/<Tooltip tip="Business Development Representatives — reps focused on generating new business opportunities through outreach and lead qualification.">BDRs</Tooltip>)** — Find prospects with ideal tech stack fit and verified contacts

    **Account executives** — Personalize outreach with tech stack context and reach decision-makers directly

    **Sales operations** — Build scoring models using 40,000+ technology signals

    **Growth and GTM** — Build ICP profiles, export custom audiences for ad targeting, and run technology-based ABM campaigns

    **Market analysts** — Track technology adoption trends, competitive market share, and migration patterns with 20 years of data

    **Customer success** — Monitor accounts for churn signals and upsell opportunities

    **Ad and campaign operations** — Export technology-segmented email lists for LinkedIn, Facebook, and Google Ads custom audiences
  </Tab>
</Tabs>

***

## Real-time subscriber and churn signals

See exactly when companies start or stop using any technology. Not a static snapshot. Live adoption and churn signals that reveal buying windows as they open.

<Tabs>
  <Tab title="Subscriber signals">
    Detect when a company starts using a technology:

    * Real-time adoption detection across 50M+ domains
    * Timestamp of first detection
    * Signal confidence scoring
    * Trend analysis: is this technology gaining or losing market share?
    * Bulk subscription data across industries and segments

    *Example: "Company X just subscribed to HubSpot." Reach out with your integration before they finish onboarding.*
  </Tab>

  <Tab title="Churn signals">
    Detect when a company stops using a technology:

    * Real-time removal detection
    * Estimated removal date
    * Replacement technology detection (what did they switch to?)
    * Churn pattern analysis using historical data
    * Early warning indicators before full removal

    *Example: "Company Y just dropped Intercom." Pitch your alternative during the 30-day evaluation window.*
  </Tab>

  <Tab title="Why this matters">
    | Capability                            | TechnologyChecker | Wappalyzer | BuiltWith | TheirStack     | 6sense |
    | ------------------------------------- | ----------------- | ---------- | --------- | -------------- | ------ |
    | Detect current tech stack             | Yes               | Yes        | Yes       | Yes (via jobs) | Yes    |
    | Detect new subscriptions in real-time | Yes               | No         | Slow      | No             | No     |
    | Detect churn/removal in real-time     | Yes               | No         | Slow      | No             | No     |
    | Replacement technology detection      | Yes               | No         | No        | No             | No     |
    | Churn + verified contacts bundled     | Yes               | No         | No        | No             | No     |

    An SDR selling a CRM platform sees that 47 companies churned from a competing CRM this week, with verified contacts for the VP of Sales and Sales Ops Manager at each one. The SDR creates a targeted outreach sequence within hours of the churn event, reaching prospects during the 30-day window when they're actively evaluating replacements.
  </Tab>
</Tabs>

<Info>
  Subscriber and churn signals turn static technology data into buying intelligence you can act on. Instead of a snapshot of what companies use today, you see the movement: who's adopting, who's leaving, who's switching.
</Info>

***

## Company + contact data per technology

Knowing that 5,000 companies use Stripe isn't enough. You need to know *which* companies, *which* employees, and *which* decision-makers, with verified emails for each one.

<Tabs>
  <Tab title="Company data">
    For each technology, you get a full list of companies using it:

    * Company firmographics: size, industry, location, revenue range, funding status
    * Technology adoption date (when they started using it)
    * Full tech stack context (what else they use alongside it)
    * Segmentation by company size, industry, geography
  </Tab>

  <Tab title="Contact data">
    Decision-makers at companies using that technology:

    * Titles and roles associated with the technology (e.g., "VP Engineering" for React, "VP Operations" for Airtable)
    * Verified email addresses (deliverability confirmed)
    * LinkedIn profiles
    * Department and seniority matching
    * Last verified timestamps and confidence scores
  </Tab>

  <Tab title="Custom audience exports">
    Export verified email lists segmented by technology usage for custom audience uploads:

    * **LinkedIn Matched Audiences** — Technology-segmented professional targeting
    * **Facebook Custom Audiences** — Role + technology targeting at scale
    * **Google Customer Match** — Search and display targeting by technology
    * **Suppression lists** — Exclude current customers using your technology
    * **Lookalike audience seeding** — Based on technology cohorts

    *Example: "Export all VP Operations at companies using Airtable + n8n, 50-500 employees, US." That's a highly targeted custom audience for ABM campaigns.*
  </Tab>

  <Tab title="Competitive context">
    Most competitors give you either company data or contact data. Rarely both matched to specific technologies:

    | Capability                             | TechnologyChecker | Wappalyzer      | BuiltWith       | TheirStack         | HG Insights     |
    | -------------------------------------- | ----------------- | --------------- | --------------- | ------------------ | --------------- |
    | Companies using Technology X           | Yes               | Yes (\$250+/mo) | Yes (\$295+/mo) | Yes                | Yes (\$50K+/yr) |
    | Contacts at companies using Tech X     | Yes               | Yes (\$450+/mo) | No              | No                 | Yes (\$50K+/yr) |
    | Custom audience email exports          | Yes               | No              | No              | No                 | No              |
    | Title/role mapping per technology      | Yes               | No              | No              | Partial (via jobs) | Yes (\$50K+/yr) |
    | Both company + contacts under \$100/mo | Yes               | No              | No              | No                 | No              |
  </Tab>
</Tabs>

<Tip>
  A marketing team selling an Airtable integration exports 3,400 verified emails from the "Airtable users" list, filtered by company size (50-500 employees) and geography (US), then uploads them to LinkedIn as a Matched Audience. The click-through rates beat generic targeting by a wide margin.
</Tip>

***

## Historical data for ICP analysis and market intelligence

Twenty years of technology adoption patterns. Use them to build data-driven ICP profiles, predict buying behavior, and analyze market shifts. HG Insights charges $50K+/year for this kind of intelligence. TechnologyChecker starts at $89/month.

<Tabs>
  <Tab title="ICP pattern analysis">
    * Identify common technology patterns among your best customers (e.g., "Our highest-LTV customers use Stripe + Segment + a headless CMS")
    * Build technology-based ICP scoring models
    * Find "tech stack signals" that predict conversion likelihood
    * Analyze which technologies correlate with company growth stages
    * Segment prospects by technology maturity level
  </Tab>

  <Tab title="Market intelligence">
    * Technology adoption curves over 20 years: which technologies are growing, plateauing, or declining
    * Market share by category (e.g., CRM market share: Salesforce vs. HubSpot vs. Pipedrive over time)
    * Migration patterns: where do companies go when they leave Technology X?
    * Industry-specific trends (e.g., "Healthcare companies adopting HIPAA-compliant infrastructure")
    * Competitive displacement: which products are winning or losing share
    * Cohort analysis by company size, industry, and geography
  </Tab>

  <Tab title="Why this matters">
    HG Insights charges $50K+/year for technology market intelligence. BuiltWith charges $295-995/month for historical technology data. **TechnologyChecker starts at \$89/month** with the same 20 years of history. That puts market-grade technology intelligence within reach for analysts, investors, and strategy teams at startups and mid-market companies.
  </Tab>
</Tabs>

***

## 40,000+ technologies across 50M+ domains

The deepest technology dataset at this price point. 5x more coverage than Wappalyzer.

<Columns cols={2}>
  <Card title="Frontend" icon="browser">
    React, Vue, Next.js, Angular, WordPress, Webflow, and thousands more JavaScript frameworks, CMS platforms, and CSS tools.
  </Card>

  <Card title="Backend" icon="server">
    n8n, Node.js, Django, Rails, Laravel, databases, custom APIs, and server-side infrastructure invisible to browser-based tools.
  </Card>

  <Card title="Standalone platforms" icon="grid-2">
    Airtable, Notion, Zapier, Make, Monday.com. <Tooltip tip="Software as a Service — cloud-hosted applications accessed via the web rather than installed locally.">SaaS</Tooltip> platforms detected through <Tooltip tip="Domain Name System — the internet's phonebook that translates domain names to IP addresses. DNS records reveal hosting providers, email services, and SaaS tools.">DNS</Tooltip>, API fingerprints, and infrastructure signals.
  </Card>

  <Card title="Marketing and sales" icon="bullhorn">
    HubSpot, Salesforce, Marketo, Intercom, Drift, and the full spectrum of marketing automation and CRM tools.
  </Card>

  <Card title="Infrastructure" icon="cloud">
    AWS, Google Cloud, Cloudflare, CDNs, hosting providers, and cloud platform configurations.
  </Card>

  <Card title="Analytics and payments" icon="chart-mixed">
    Google Analytics, Segment, Mixpanel, Stripe, PayPal, Braintree, and tracking, analytics, and payment processing tools.
  </Card>

  <Card title="HR and operations" icon="users-gear">
    Workday, BambooHR, Gusto, Rippling — HR platforms and operations tools detected via infrastructure signals.
  </Card>

  <Card title="Project management" icon="list-check">
    Asana, ClickUp, Linear, Jira — project management platforms with external-facing components.
  </Card>
</Columns>

<Info>
  More technologies detected means fewer blind spots in prospect tech stacks. A company using Airtable + n8n signals they're building custom operations workflows. Frontend-only tools miss this completely.
</Info>

***

## Full-stack detection

Browser extensions can only see what's in the page source. TechnologyChecker also detects backend infrastructure and standalone tools that signal real buying intent.

<Tabs>
  <Tab title="How it works">
    TechnologyChecker uses multi-signal fingerprinting to detect technologies across all layers:

    | Detection method                                                                                                                                                                                                            | What it finds                                              |
    | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------- |
    | Headless JS rendering                                                                                                                                                                                                       | Frontend frameworks, tag managers, A/B testing tools       |
    | HTTP header analysis                                                                                                                                                                                                        | Server frameworks, CDNs, security tools                    |
    | <Tooltip tip="Domain Name System / Transport Layer Security — DNS maps domain names to IPs; TLS secures connections with encryption certificates. Both leave identifiable fingerprints.">DNS / TLS</Tooltip> fingerprinting | Cloud providers, standalone SaaS platforms, email services |
    | Asset fingerprinting                                                                                                                                                                                                        | JavaScript libraries, CSS frameworks, font providers       |
    | Infrastructure probing                                                                                                                                                                                                      | Backend frameworks, databases, API gateways                |

    Every detection includes a confidence score so you know how reliable each signal is.
  </Tab>

  <Tab title="Backend detection">
    Technologies invisible to browser-based tools:

    * **Automation platforms** — n8n, Zapier, Make, Integromat
    * **Databases** — PostgreSQL, MongoDB, Redis (when signatures are public)
    * **Server frameworks** — Node.js, Django, Rails, Laravel
    * **APIs** — Custom <Tooltip tip="REST uses standard HTTP methods; GraphQL uses a single endpoint with a query language. Both are common API architectures for web services.">REST/GraphQL</Tooltip> endpoints, third-party integrations
    * **Self-hosted tools** — Internal platforms with external-facing components
  </Tab>

  <Tab title="Standalone platforms">
    SaaS products detected through DNS and API fingerprints:

    * **Productivity** — Airtable, Notion, Coda
    * **Project management** — Monday.com, Asana, ClickUp
    * **Automation** — Zapier, Make, n8n
    * **Communication** — Slack, Intercom, Drift

    These signals tell you about operational maturity and active buying behavior. Frontend-only detection misses all of it.
  </Tab>
</Tabs>

<Tip>
  When a prospect adopts n8n + Airtable, they're building custom operations workflows. A frontend-only tool shows "they use React." TechnologyChecker shows "they're building custom workflows, and here's who to contact."
</Tip>

***

## 20-year historical data + live monitoring

Two decades of adoption patterns merged with real-time monitoring. Use them to predict churn and spot buying windows.

<Steps>
  <Step title="Historical intelligence (20 years)">
    Analyze long-term technology adoption patterns:

    * Technology adoption and removal timelines across millions of domains
    * Migration patterns: which tools companies switch between
    * <Tooltip tip="Grouping companies by shared characteristics (size, industry, geography) and analyzing their technology adoption patterns over time.">Cohort analysis</Tooltip> by company size, industry, and geography
    * Technology lifespan and replacement cycles
    * Competitive market share changes over time
    * ICP pattern analysis: which technology combinations correlate with your best customers
  </Step>

  <Step title="Live monitoring (real-time)">
    Track what's happening right now:

    * Current tech stack snapshots with confidence scores
    * New subscriber detection: know the moment a company adopts a technology
    * Churn detection: know the moment a company drops a technology
    * Replacement technology tracking: see what they switched to
    * Stack change timestamps for precise outreach timing
  </Step>

  <Step title="Combined insights">
    Historical context + live data = predictions you can act on:

    * **Predict churn:** Identify patterns that precede technology switches
    * **Spot <Tooltip tip="The period when a company is actively evaluating and considering new technology purchases — the optimal time for sales outreach.">buying windows</Tooltip>:** Know when companies typically evaluate alternatives
    * **Build ICP models:** Use 20 years of what-companies-use-what patterns
    * **Track competitive movements:** See which technologies are gaining or losing share
    * **Inform market research:** Longitudinal adoption data for analysts and investors
    * **Optimize outreach timing:** Reach prospects during active evaluation periods
  </Step>
</Steps>

***

## Real-time churn and adoption alerts

Get notified the moment prospects subscribe to or drop any technology. Every technology change is a potential revenue opportunity.

<AccordionGroup>
  <Accordion title="Subscriber alerts (new adoption)" icon="circle-plus">
    Get notified when target accounts start using new technologies, including backend tools and standalone platforms that browser-based tools miss.

    *Example: "Alert me when prospects adopt Stripe." Identifies companies investing in payment infrastructure.*

    **Use case:** Sell complementary products to companies actively building their stack.
  </Accordion>

  <Accordion title="Churn alerts (technology removal)" icon="circle-minus">
    Monitor when companies stop using technologies. Identify frustration signals and displacement opportunities before competitors notice.

    *Example: "Alert me when companies drop Intercom." Identifies companies actively seeking alternatives.*

    **Use case:** Reach out with your alternative during the active evaluation window (typically 30-60 days).
  </Accordion>

  <Accordion title="Replacement detection alerts" icon="arrows-rotate">
    Track when companies switch from one technology to another. See competitive displacement as it happens.

    *Example: "Alert me when companies switch from Intercom to Zendesk." Monitor competitive movements as they happen.*

    **Use case:** Intervene during active technology evaluations with targeted messaging.
  </Accordion>

  <Accordion title="Competitive displacement alerts" icon="crosshairs">
    Track when prospects adopt your competitors' tools so you can intervene early.

    *Example: "Alert me when target accounts adopt Marketo." Engage before they fully commit.*

    **Use case:** Competitive selling during active evaluation windows.
  </Accordion>

  <Accordion title="Customer churn signals" icon="triangle-exclamation">
    Monitor your existing customers for signs they're evaluating competitors.

    *Example: "Alert me when my customers add BambooHR." Catch at-risk accounts before renewal.*

    **Use case:** Proactive retention outreach based on real technology signals.
  </Accordion>
</AccordionGroup>

**What's included in every alert:**

* Technology change details (subscribe, churn, or switch)
* Verified contact data for decision-makers
* Company firmographics (size, industry, location)
* Historical context (how common is this change? what typically follows?)
* Recommended next actions

**Alert delivery:** Email, Slack/Teams, webhooks, CRM task creation, and API callbacks.

***

## Verified decision-maker contacts + company data

Technology signals don't help if you can't reach the right person. Every technology signal comes with both company-level and contact-level data.

<CardGroup cols={2}>
  <Card title="Contact verification" icon="circle-check">
    * Email deliverability testing
    * Bounce rate monitoring
    * Data freshness indicators
    * Confidence scoring
    * Last verified timestamps
  </Card>

  <Card title="Role targeting" icon="user-tie">
    * C-level executives (CTO, CIO, CMO, VP Engineering)
    * Department heads (Head of Product, Head of Growth)
    * Technical decision-makers (Engineering Managers, DevOps)
    * Business decision-makers (Sales Ops, Operations)
  </Card>
</CardGroup>

**What's included with every profile:**

| Data point             | Description                                  |
| ---------------------- | -------------------------------------------- |
| Verified email         | Deliverability-confirmed work email          |
| LinkedIn profile       | Direct link to professional profile          |
| Role and department    | Decision-maker matching by function          |
| Firmographics          | Company size, industry, location             |
| Social links           | Additional professional profiles             |
| Custom audience export | Formatted for LinkedIn, Facebook, Google Ads |

<Tip>
  Technology data without contacts means days of manual prospecting. TechnologyChecker gives you both in one platform, plus the ability to export technology-segmented contact lists directly into ad platforms for custom audience targeting.
</Tip>

***

## Enterprise-grade platform

Built for B2B sales and GTM workflows with bulk enrichment, API access, CRM automation, and custom audience exports. This isn't a browser extension.

<Tabs>
  <Tab title="Bulk operations">
    * Upload up to **100,000 domains** for enrichment
    * Get full tech profiles + verified contacts
    * CSV/XLSX import and export
    * Batch processing with progress tracking
    * Queued processing for large jobs
  </Tab>

  <Tab title="API access">
    * RESTful API with full endpoint coverage
    * Real-time and database technology detection
    * Historical data queries with 20-year depth
    * Contact enrichment endpoints
    * Custom audience data export endpoints
    * Webhook integrations for custom workflows
    * [Full API reference](/api-reference/introduction)
  </Tab>

  <Tab title="CRM automation">
    * **Native integrations** — Salesforce, HubSpot, Pipedrive
    * Auto-sync technology data to contact records
    * Trigger workflows on tech stack changes (subscribe/churn events)
    * Lead scoring based on technology signals
    * Custom field mapping
  </Tab>

  <Tab title="Data export">
    * CSV/XLSX download
    * Historical timeline exports
    * Custom date ranges
    * Custom audience email exports (formatted for Facebook, LinkedIn, Google Ads)
    * Filtered exports by criteria
    * Scheduled reporting
  </Tab>

  <Tab title="Security and compliance">
    * <Tooltip tip="Service Organization Control 2 — an auditing standard that verifies a company securely manages data to protect customer privacy.">SOC 2</Tooltip> Type II certified
    * <Tooltip tip="General Data Protection Regulation — EU law governing how companies collect, store, and process personal data of EU residents.">GDPR</Tooltip> compliant
    * <Tooltip tip="California Consumer Privacy Act — California state law giving consumers rights over their personal data collected by businesses.">CCPA</Tooltip> compliant
    * Data encryption at rest and in transit
    * Role-based access control
  </Tab>
</Tabs>

***

## How we compare

<Tabs>
  <Tab title="vs. Wappalyzer">
    | Capability                      | TechnologyChecker              | Wappalyzer                      |
    | ------------------------------- | ------------------------------ | ------------------------------- |
    | Technologies                    | 40,000+                        | \~8,000                         |
    | Domains                         | 50M+                           | Not disclosed                   |
    | Full-stack detection            | Frontend, backend, standalone  | Frontend only                   |
    | Subscriber/churn signals        | Real-time detection            | Not available                   |
    | Historical data                 | 20 years + live                | Current state only              |
    | Verified contacts               | At \$89/month                  | At \$450/month                  |
    | Company + contact data per tech | Both company and people data   | Partial (contacts are separate) |
    | Custom audience exports         | LinkedIn, Facebook, Google Ads | Not available                   |
    | Bulk enrichment                 | Up to 100K domains             | Limited                         |
    | CRM integration                 | Salesforce, HubSpot, Pipedrive | Not at Pro tier                 |
    | Entry pricing                   | \$89/month                     | \$250/month                     |

    Wappalyzer is the most widely-used browser extension for technology detection with 2.5M+ users. TechnologyChecker goes deeper: full-stack detection including backend (n8n, databases) and standalone platforms (Airtable, Notion), with real-time subscriber/churn signals and verified contacts at a lower price point.
  </Tab>

  <Tab title="vs. BuiltWith">
    | Capability                      | TechnologyChecker              | BuiltWith        |
    | ------------------------------- | ------------------------------ | ---------------- |
    | Technologies                    | 40,000+                        | \~95,000         |
    | Domains                         | 50M+                           | \~670M+          |
    | Full-stack detection            | Frontend, backend, standalone  | Frontend-heavy   |
    | Subscriber/churn signals        | Real-time                      | Periodic updates |
    | Verified contacts               | Decision-maker emails          | Not included     |
    | Company + contact data per tech | Both                           | Company only     |
    | Custom audience exports         | LinkedIn, Facebook, Google Ads | Not available    |
    | CRM integration                 | Native integrations            | Limited          |
    | Data freshness                  | Real-time + continuous         | Periodic updates |
    | Entry pricing                   | \$89/month                     | \$295/month      |

    BuiltWith wins on breadth: more technologies, more domains. TechnologyChecker wins on sales workflow depth: contacts, real-time signals, CRM integration, and custom audiences at 30% of the price.
  </Tab>

  <Tab title="vs. 6sense">
    | Capability               | TechnologyChecker   | 6sense                            |
    | ------------------------ | ------------------- | --------------------------------- |
    | Technologies             | 40,000+             | Extensive                         |
    | Subscriber/churn signals | Real-time detection | Intent-based (different approach) |
    | Verified contacts        | Included            | Through platform                  |
    | Custom audience exports  | Available           | AI-driven targeting               |
    | Historical data          | 20 years            | Limited                           |
    | Target audience          | SMB to mid-market   | Enterprise                        |
    | Entry pricing            | \$89/month          | \$25K+/year                       |

    6sense is an enterprise revenue intelligence platform with AI-powered intent data. TechnologyChecker provides real-time technology-specific subscriber/churn signals at a fraction of the price, accessible to teams that can't justify enterprise contracts.
  </Tab>

  <Tab title="vs. HG Insights">
    | Capability               | TechnologyChecker | HG Insights                 |
    | ------------------------ | ----------------- | --------------------------- |
    | Technologies             | 40,000+           | 100,000+                    |
    | IT spend intelligence    | Not available     | Unique capability           |
    | Subscriber/churn signals | Real-time         | Not comparable              |
    | Verified contacts        | Included          | Through Intent-Driven Leads |
    | Custom audience exports  | Available         | Not available               |
    | Historical data          | 20 years          | Extensive                   |
    | AI copilot               | Not yet           | Recently launched           |
    | Target audience          | SMB to mid-market | Enterprise (Fortune 100)    |
    | Entry pricing            | \$89/month        | \~\$50,000/year             |

    HG Insights offers unmatched enterprise depth: IT spend, Intent-Driven Leads, AI Copilot, 90% of Fortune 100 clients. TechnologyChecker provides comparable technology intelligence starting at $89/month, accessible to SMB and mid-market teams that can't justify $50K/year.
  </Tab>

  <Tab title="vs. TheirStack">
    | Capability               | TechnologyChecker | TheirStack               |
    | ------------------------ | ----------------- | ------------------------ |
    | Technologies             | 40,000+           | 37,000+                  |
    | Job posting analysis     | Not available     | 171M jobs, 195 countries |
    | Subscriber/churn signals | Real-time         | Not available            |
    | Verified contacts        | Included          | Not included             |
    | Custom audience exports  | Available         | Not available            |
    | Historical data          | 20 years          | Not available            |
    | CRM integration          | Available         | Not available            |
    | Entry pricing            | \$89/month        | \~\$109/1K credits       |

    TheirStack offers unique hiring signal intelligence by analyzing job postings. TechnologyChecker offers subscriber/churn signals, contacts, historical data, and custom audience exports. The two approaches complement each other well: technographic detection plus hiring signals gives you the most complete picture.
  </Tab>

  <Tab title="vs. Bloomberry">
    | Capability              | TechnologyChecker | Bloomberry                |
    | ----------------------- | ----------------- | ------------------------- |
    | Technologies            | 40,000+           | \~1,200 B2B products      |
    | Churn detection         | Available         | Core differentiator       |
    | Subscriber detection    | Available         | Available                 |
    | Backend detection       | Available         | DNS, certs, subprocessors |
    | Verified contacts       | Included          | Not included              |
    | Custom audience exports | Available         | Not available             |
    | Historical data         | 20 years          | Since 2019                |
    | Entry pricing           | \$89/month        | \$199/month               |

    Bloomberry has deep churn detection methodology and institutional credibility (hedge fund clients). TechnologyChecker has dramatically broader technology coverage (40K vs 1.2K), contacts, 20-year historical data, and custom audience exports at lower pricing.
  </Tab>
</Tabs>

***

## Related pages

<CardGroup cols={2}>
  <Card title="Use cases" icon="lightbulb" href="/use-cases">
    See how sales, GTM, market analyst, and developer teams use TechnologyChecker.
  </Card>

  <Card title="Technologies" icon="microchip" href="/features/technologies">
    Browse the full catalog of 40,000+ tracked technologies.
  </Card>

  <Card title="Detailed comparison" icon="scale-balanced" href="/features/comparison">
    Full feature matrix comparing TechnologyChecker with all major alternatives.
  </Card>

  <Card title="API reference" icon="code" href="/api-reference/introduction">
    Full REST API documentation with interactive examples.
  </Card>
</CardGroup>

## Frequently asked questions

<AccordionGroup>
  <Accordion title="What does full-stack detection mean?">
    It means detecting technologies across all layers: frontend frameworks visible in the browser, backend infrastructure (via HTTP headers and DNS fingerprinting), and standalone SaaS platforms (via API and infrastructure signals). Browser-only tools like Wappalyzer miss backend and standalone technologies entirely. See [full-stack detection](#full-stack-detection) for details.
  </Accordion>

  <Accordion title="What are subscriber and churn signals?">
    Subscriber signals detect when a company starts using a new technology. Churn signals detect when a company stops using a technology. Both are delivered in real-time with verified contacts and company data, enabling your team to act during active buying windows. See [real-time signals](#real-time-subscriber-and-churn-signals) for details.
  </Accordion>

  <Accordion title="Can I export contacts for ad targeting?">
    Yes. You can export verified email lists segmented by technology usage, company size, industry, geography, and contact role. These exports are formatted for LinkedIn Matched Audiences, Facebook Custom Audiences, and Google Customer Match. See [custom audience exports](#company--contact-data-per-technology) for details.
  </Accordion>

  <Accordion title="How does TechnologyChecker compare to Wappalyzer?">
    TechnologyChecker detects 40,000+ technologies (vs \~8,000 for Wappalyzer) across frontend, backend, and standalone platforms. It includes real-time subscriber/churn signals, verified contacts at $89/month (vs $450/month for Wappalyzer), custom audience exports, 20-year historical data, and CRM integrations. Wappalyzer doesn't offer these at any price tier, though it does have 2.5M+ browser extension users and strong market trust built over 18 years. See the [full comparison](#how-we-compare).
  </Accordion>

  <Accordion title="How does TechnologyChecker compare to enterprise tools like HG Insights and 6sense?">
    HG Insights ($50K+/year) and 6sense ($25K+/year) serve Fortune 100 companies with deep enterprise features. TechnologyChecker provides the core technology intelligence (real-time signals, contacts, historical data, and custom audiences) at \$89/month for SMB and mid-market teams. See the [full comparison](#how-we-compare).
  </Accordion>
</AccordionGroup>