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Siddhant Sharma
Siddhant Sharma

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How to automatically detect any company's tech stack and logo from just their domain name

#webdev #api #scraping #productivity

The Problem

When you're doing sales prospecting, competitor research, or lead generation, one of the most tedious tasks is manually visiting each company's website to figure out:

  • What tech stack do they use?
  • What's their company logo for your CRM?
  • Where are they on social media?
  • How do I contact them?

The Solution

I built a simple API that takes a domain name and returns all this data automatically. Let me walk you through how it works.

How It Works

  1. Input: A company domain name (e.g., example.com)
  2. Process: The scraper visits the website, analyzes its HTML, headers, and scripts
  3. Output: Tech stack detection, company logo URL, social profiles, contact info, and industry classification

Tech Stack Detection

The API uses pattern matching against 50+ known indicators:

  • Framework-specific meta tags and script patterns
  • CDN and hosting headers
  • Analytics and tracking scripts
  • CMS signatures

Logo Extraction

Multiple fallback strategies:

  1. Open Graph image tags
  2. Apple touch icons
  3. JSON-LD structured data
  4. Clearbit API fallback

API Usage 

import requests

response = requests.post(
    "https://api.apify.com/v2/acts/technicaldost~company-intelligence-api/run-sync",
    json={"domains": ["example.com"]}
)
data = response.json()
print(data["techStack"], data["logo"])
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Why I Built This

As someone who builds web scrapers and automation tools, I found myself repeatedly writing the same domain-analysis code for different projects. This API consolidates all that into one endpoint.

Check it out on the Apify Store — free tier available with 1000 results/month.

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