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Tech Stack Detector - BuiltWith Alternative

Try for free

Detect website technology stack including CMS, frameworks, analytics, and marketing tools. A free alternative to BuiltWith. CMS detection Framework detection Analytics tools Marketing tools Hosting & CDN Payment & chat

Pricing

from $0.01 / 1,000 results

Rating

1.0

(1)

Developer

The Howlers

Actor stats

Bookmarked

184

Total users

Monthly active users

12 days ago

Last modified

Quick Start

Test with Demo Mode (free, no API key needed)

{
  "demoMode": true,
  "urls": [
    "https://stripe.com",
    "https://shopify.com"
  ]
}

Run with real data

{
  "demoMode": false,
  "urls": [
    "https://stripe.com",
    "https://shopify.com"
  ],
  "detectCategories": [
    "CMS",
    "FRAMEWORK",
    "CSS_FRAMEWORK",
    "JS_LIBRARY",
    "ANALYTICS",
    "MARKETING",
    "HOSTING",
    "CDN",
    "ECOMMERCE",
    "PAYMENTS",
    "CHAT",
    "EMAIL"
  ],
  "deepScan": false
}

Input Parameters

Parameter	Type	Default	Required	Description
`urls`	array	-	No	URLs to analyze for tech stack. Include https:// prefix or it will be added automatically.
`detectCategories`	array	`["CMS","FRAMEWORK","CSS_FRAMEWORK","JS_LIBRARY","ANALYTICS","MARKETING","HOSTING","CDN","ECOMMERCE","PAYMENTS","CHAT","EMAIL"]`	No	Filter which technology categories to detect. By default, all 12 categories are checked.
`deepScan`	boolean	`false`	No	Crawl additional pages (about, pricing, blog) for more thorough detection. Slower but finds more technologies.
`demoMode`	boolean	`false`	No	Return sample data for testing (free, no live scraping). Set to false for real analysis.
`webhookUrl`	string	-	No	URL to receive results via POST when analysis completes (Zapier, Make, n8n, custom)

Pricing

This actor uses pay-per-event billing:

Event	When it is charged	Price
Actor start	Once when the run starts, one event per GB of memory (minimum one). At the default 1 GB of memory that is $0.10 per run	$0.10 per GB
Site Analyzed	Per website analyzed	$0.02
Result	Each item written to the default dataset	$0.00001

Demo mode is free -- no charges for sample data.

Troubleshooting

"API error 429" or "Rate limit"

Too many requests. Wait a minute and try again, or reduce the number of items per run.

No results or empty dataset

Check the run log for error messages. Common causes:

Invalid input format (check the examples above)
The target data doesn't exist or is too small to track

How do I test without an API key?

Enable Demo Mode in the input. This returns realistic sample data so you can verify the output format works for your workflow.

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