Website Tech Stack Detector (BuiltWith Alternative)

Detect the tech stack of thousands of websites: CMS, ecommerce platform, analytics, ad pixels, CRM/marketing tools, live chat, frameworks, CDN and hosting. Cheap bulk BuiltWith/Wappalyzer alternative.

What you can use it for

• Lead lists by technology: e.g. all Shopify stores using Klaviyo but no reviews app.
• Sales qualification: enrich CRM accounts with stack data.
• Competitive research for SaaS: who uses your competitor.
• Agency audits: analytics/consent/pixel checks at scale.

How to use it

1. Click Try for free, fill in the input (the defaults are a working example) and press Start.
2. Download results as JSON, CSV, Excel or HTML, or read them through the Apify API.
3. Put it on a schedule and connect Slack, Google Sheets, Make, Zapier, n8n or webhooks to get fresh data automatically.

Input

Field	Name	Description
urls	Websites	URLs or bare domains.
onlyWithTechnologies	Only keep sites using	Filter, e.g. 'Shopify', 'HubSpot', 'Klaviyo' (any).
concurrency	Concurrency	Parallel requests.
maxItems	Max results	Hard cap on dataset items, so you control cost.

Example input

{
  "urls": [
    "https://www.allbirds.com",
    "https://stripe.com",
    "https://techcrunch.com",
    "https://wordpress.org",
    "https://nonexistent-domain-xyz-123.com"
  ],
  "maxItems": 10
}

Output

One dataset row per website. Example:

{
  "domain": "www.allbirds.com",
  "statusCode": 200,
  "cms": null,
  "ecommercePlatform": "Shopify",
  "cdn": "Cloudflare",
  "technologyNames": [
    "Shopify",
    "Google Tag Manager",
    "Klaviyo",
    "Meta Pixel",
    "Cloudflare"
  ],
  "technologyCount": 5,
  "categories": {
    "Ecommerce": [
      "Shopify"
    ],
    "Email marketing": [
      "Klaviyo"
    ]
  }
}

The Overview table view shows the key columns; the full record has every field.

Pricing

Pay per result: $1.50 per 1,000 websites plus a tiny $0.005 start fee. No subscription. Set Max results to cap your spend; Apify's per-run cost limit is respected too.

Why this actor

• Uses official public APIs / feeds / public pages only: no login, no cookies, no personal accounts.
• Fast HTTP-only (no browser), so it's cheap and reliable at volume.
• Retries, rate-limit back-off and clear warnings: one bad input never kills the run.

FAQ

How many technologies? 130+ signatures across CMS, ecommerce, payments, analytics, advertising, marketing automation, chat, consent, frameworks, CDN, hosting, servers and more.

JS-rendered sites? Detection uses HTML, headers and cookies of the homepage, which catches the vast majority of tags without a browser (10-50x cheaper).

Need a field or source added? Open an issue on the Issues tab; we usually ship fixes within days.