Website Tech Stack Detector & Lookup: BuiltWith Alternative

Tech stack lookup by domain. Paste company domains and get the website technologies each one uses (CMS, ecommerce platform, analytics, ad pixels) plus its email provider from public DNS. Use it as a lightweight BuiltWith alternative for company enrichment and lead lists.

Enrich company records with observed website technologies, advertising pixels and public DNS email signals. Use the results to qualify accounts by their stack.

What you get

• Inspect public website evidence for frameworks, CMS, ecommerce, analytics and marketing tools.
• Detect supported ad pixels and tags, including Meta Pixel and Google Ads/GA4 signatures.
• Inspect DNS email-provider signals and optionally compare repeated runs.

Quick start

Edit the sample target in Apify Console, or pass an explicit target through the API:

{
  "domains": [
    "linear.app"
  ],
  "track_diff": false,
  "use_paid_upstream": false
}

Results are written to the default dataset. Use the overview dataset view to inspect records and export available columns as JSON, CSV or Excel.

Captured output example

Selected fields from an earlier validation run; these values are not current measurements.

{
  "domain": "linear.app",
  "status": "ok",
  "final_url": "https://linear.app/",
  "title": "Linear – The system for product development",
  "has_meta_pixel": false,
  "has_google_ads_tag": false,
  "has_ga4": false,
  "has_gtm": false,
  "has_linkedin_insight": false
}

Sources and coverage

Detection is based on visible page and DNS evidence. Consent controls, client-side loading and blocking can hide a technology. A pixel does not prove active advertising or advertising spend.

The default uses public or platform-native sources with external paid data providers disabled. Apify Actor events and platform usage are separate from external API costs. Unsupported or unavailable fields are reported honestly; this is not a guarantee of complete source coverage.

Pricing

Published standard event rates (before plan discounts):

Event	USD per event	Meaning
apify-actor-start	$5e-05	Actor Start
domain-checked	$0.003	Domain checked

Startup events, when configured, are separate from result events. Result-event charging follows the Actor's eligibility and useful-output rules; public fallback or diagnostic outputs may be uncharged. The live Pricing tab is authoritative. Set a maximum total charge before starting a run.

API, MCP and workflow integrations

Actor ID: hirepulse/website-tech-stack-detector. Run this Actor through Apify API or its official client libraries. Connect it to n8n or Make using the Apify integration, or expose it to AI agents through Apify's MCP server. This Actor does not host its own MCP server. API calls must supply the required target; Console prefill is an editable example, not a hidden API target.

Use cases and data coverage

Dimension	Coverage
Use cases	B2B technographic enrichment, lead qualification and website monitoring
Target sources	Company websites and public DNS
Output	Structured JSON records in an Apify dataset

Store categorization is assigned by Apify. No search position, AI recommendation, completeness or fixed runtime is guaranteed.

Related HirePulse tools

• ats-job-pulse
• google-jobs-scraper
• domain-seo-overview