Website Tech Stack Detector: CMS, Analytics, Pixels

Find out what any website is built with - CMS, e-commerce platform, analytics, tag managers, ad pixels, CDN, hosting, JavaScript frameworks, payment providers, chat widgets, consent tools, A/B testing, email marketing, review widgets, email provider and DNS host - in one fast run, with the evidence behind every detection, ready-made insights, a market-share summary across all domains, and optional change tracking.

No browser, no API key. Paste domains, get a stack profile per domain.

Why this actor

• Evidence you can trust. Every technology comes with a confidence score and the exact signal it was found by (for example script src matches js.stripe.com), so you can verify any result.
• Insights, not only names. Flags such as ad pixels without a consent manager, outdated jQuery, online store without a reviews widget or email marketing tool, analytics hidden behind a tag manager, plus a tooling tier per domain - handy for sales prospecting and audits.
• DNS signals included. Email provider (Google Workspace, Microsoft 365, ...), DNS host and verified SaaS services from MX/NS/TXT records - things a page scan alone cannot see.
• Market-share summary. One free summary row per run: top technologies and top tools per category with share %, across every domain you scanned.
• Change tracking. Schedule it and get TECH_ADDED, TECH_REMOVED and VERSION_CHANGED rows - spot a competitor switching platforms or a prospect adding a new tool.
• Bot-protected sites handled honestly. If a site answers with a challenge page, you get a free BLOCKED row with the header/DNS-level technologies that could still be identified - never a fake "nothing detected".
• Low, flat price, no start fee. One charge per successfully scanned domain; errors are free.

What it detects

250+ technologies across: CMS (WordPress, Shopify, Wix, Squarespace, Webflow, Drupal, ...), e-commerce (Shopify, WooCommerce, Magento, BigCommerce, Salla, Zid, Tiendanube, VTEX, ...), analytics, tag managers, ad pixels (Meta, Google Ads, TikTok, LinkedIn, Pinterest, Snap, X, Microsoft, Reddit, Criteo, ...), CDN and hosting, web servers, JS and UI frameworks, payments (Stripe, PayPal, Adyen, Klarna, Afterpay, Mercado Pago, ...), chat and support widgets, consent management, A/B testing, marketing automation, review widgets, fonts, security (captcha), email providers, DNS hosts and verified services.

Use cases

• Sales prospecting: find stores on a given platform or without a tool you sell.
• Competitor research: see which analytics, ad and payment tools competitors use - and when they change.
• Agencies and audits: quick privacy and tooling checks before a pitch.
• Market research: platform and tool share across a list of domains.

How to use

1. Paste domains into Domains (bare domains are fine).
2. Optional: scan a few internal pages, filter categories, or enable change tracking.
3. Run and open the Domains or Insights view.

{
  "domains": ["allbirds.com", "wordpress.org", "bbc.co.uk"],
  "extraPagesPerDomain": 0,
  "includeDns": true,
  "trackChanges": false
}

Output example (domain row, shortened)

{
  "type": "domain",
  "domain": "allbirds.com",
  "finalUrl": "https://www.allbirds.com/",
  "ecommercePlatform": "Shopify",
  "analytics": ["Microsoft Clarity"],
  "tagManagers": ["Google Tag Manager"],
  "cdn": "Cloudflare",
  "consentManagement": ["OneTrust"],
  "marketingAutomation": ["Attentive"],
  "techCount": 10,
  "technologies": [
    { "name": "Shopify", "categories": ["ecommerce"], "version": null, "confidence": 100, "evidence": "page HTML matches cdn.shopify.com" }
  ],
  "insights": [
    { "code": "NO_REVIEWS_WIDGET", "severity": "info", "message": "Online store with no product-reviews widget detected." }
  ],
  "estimatedToolingTier": "medium"
}

Other row types: summary (one per run, free), change (monitoring, free) and error (INVALID_INPUT, DNS_FAILED, FETCH_FAILED, BLOCKED - free).

Pricing

$2.00 per 1,000 domains ($0.002 per successfully scanned domain), no start fee. Summary rows, change rows and error rows are never charged. Extra internal pages do not cost extra. The run stops cleanly when your spending limit is reached.

FAQ

Does it run a browser? No. It reads the HTML, scripts, headers, cookie names and DNS records. Tools injected only at runtime through a tag manager may not appear; the actor tells you when that is likely.

Does it collect personal data? No. It never outputs emails, phone numbers or names, and reads only cookie names, never cookie values.

How accurate is it? Each detection has a confidence score and evidence. Use minConfidence to hide weaker signals.

Limits

• Up to 10 extra internal pages per domain.
• Sites behind strong bot protection return a BLOCKED row with partial results.