About LLMSE

LLMSE is an AI-powered website classification service that helps you discover and understand the web through intelligent categorization.

What is LLMSE?

LLMSE (LLM Search Engine) is a service that uses artificial intelligence to automatically analyze and categorize websites. Think of it as a modern card catalog for the internet—similar to how libraries organize books by subject, LLMSE organizes websites into meaningful categories that make discovery and research easier.

Whether you're researching a topic, exploring new websites, or trying to understand what a website is about, LLMSE provides instant, intelligent classification that would take humans much longer to perform manually.

How Does It Work?

When you submit a website URL, LLMSE:

  • Analyzes the website's content using AI
  • Determines the main topic category (from 58 categories like Sports, Technology, Education, etc.)
  • Identifies a specific subcategory for more precise classification
  • Detects the primary language of the content
  • Determines the likely target audience (age groups and demographics)
  • Analyzes the overall sentiment of the content
  • Identifies the web technologies used to build the site

Key Features

58 Categories — Comprehensive topic coverage from Arts to Weather
Language Detection — Automatic identification of content language
Audience Insights — Target demographic analysis by age and gender
Sentiment Analysis — Understand the emotional tone of content
Technology Detection — Identify CMS, frameworks, and web applications
Advanced Search — Filter and browse by multiple criteria
User Agent Database — Browse and analyze browser and bot user agents collected from real traffic
Market Share Statistics — Explore classification distributions across categories, languages, servers, and demographics
SEO Analysis — Automated SEO grading for websites with detailed reports via MCP tools

Browse the Web by Topic

Beyond classifying individual URLs, LLMSE maintains a growing index of classified websites that you can browse and explore:

  • By Category: Find websites about Sports, Technology, Health, Education, and more
  • By Language: Discover content in English, Spanish, German, Japanese, and many other languages
  • By Demographics: Find sites targeted at specific age groups
  • By Technology: Explore sites built with WordPress, Shopify, React, and 290+ other platforms
  • By Sentiment: Filter by positive, neutral, or negative content tone
  • By User Agent: Explore browsers, bots, and HTTP clients visiting the web

Want to see the big picture? View our classification market share to see distributions across all dimensions.

Ready to explore? Check out our query examples to see what's possible.

Get Started

Using LLMSE is simple:

  1. Enter any website URL in the search box on the homepage
  2. Click "Classify" to analyze the website
  3. View the detailed classification results
  4. Click on any category, language, or attribute to browse similar sites

No account needed. Just enter a URL and discover.

MCP Integration

LLMSE is available as a Model Context Protocol (MCP) server, allowing AI assistants like Claude to classify websites and match advertisers directly.

Connect to LLMSE Public MCP:

{
  "mcpServers": {
    "llmc-public": {
      "url": "https://llmse.ai/mcp"
    }
  }
}

Available tools:

  • classify_url — Classify any website by URL
  • select_advertiser — Match advertisers to website demographics

See MCP Examples for detailed usage with prompts you can try.

Part of DomainsProject

LLMSE is developed by DomainsProject.org, an initiative dedicated to building open datasets and tools for understanding the internet. Our mission is to make the web more discoverable and organized through innovative technology.