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DeepSeek User Agents & Crawler

DeepSeek doesn't identify itself. Unlike GPTBot or ClaudeBot, there's no user agent string to track or block.

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Founded in 2023, DeepSeek charges $0.27 per million input tokens. GPT-4 Turbo charges $10. That's 37x cheaper. Their latest model, DeepSeek-V3.1, matches GPT-4's reasoning with a 128K token context window.

What is DeepSeek AI?

DeepSeek is a Chinese AI company that launched in 2023. They build language models that cost 95% less than GPT-4 while matching performance on coding and reasoning tasks.

Their V3.1 model processes 128K tokens per request—enough for entire codebases or long documents. Developers use it because it's cheaper than GPT-4, not because it's better.

About DeepSeek AI

Company

DeepSeek AI

Founded

2023

Latest Model

DeepSeek-V3.1

Context Window

128K tokens

Website

deepseek.com

Key Feature

Cost-effective, strong reasoning

What is DeepSeek's Main User Agent String?

DeepSeek doesn't use identifiable user agents. GPTBot identifies as "GPTBot". ClaudeBot identifies as "ClaudeBot". DeepSeek identifies as nothing.

You can't track DeepSeek in your server logs. You can't block it in robots.txt. You can't see it in analytics. It crawls anonymously.

How can I identify DeepSeek crawlers?

You can't. DeepSeek doesn't identify itself in user agent strings. Your server logs won't show "DeepSeekBot" or any DeepSeek identifier.

Other AI crawlers announce themselves. GPTBot says "GPTBot". ClaudeBot says "ClaudeBot". DeepSeek says nothing.

How can I detect DeepSeek in server logs?

You can't detect DeepSeek in server logs. Without a user agent string, DeepSeek traffic looks like regular browser traffic.

Some developers try IP blocking or behavioral analysis. These methods are unreliable and often block legitimate users. There's no reliable way to identify DeepSeek traffic.

How does DeepSeek access web content?

DeepSeek crawls websites anonymously. Here's what it does:

🔍 Real-time search

When users ask about current events, DeepSeek fetches URLs to answer with up-to-date information.

💬 On-demand fetching

Users can request specific URLs. DeepSeek crawls those pages to answer questions about their content.

📚 Background crawling

DeepSeek crawls technical docs, code repositories, and documentation sites to build its knowledge base.

🎯 Training data

Crawled content trains future models, especially for coding tasks where DeepSeek performs well.

How do I block DeepSeek?

You can't block DeepSeek with robots.txt. robots.txt works by matching user agent strings. DeepSeek doesn't use one.

You could try IP blocking or rate limiting, but these methods are unreliable and often block real users. There's no reliable way to block DeepSeek without blocking legitimate traffic.

How do I optimize content for DeepSeek?

DeepSeek reads HTML like a browser. It understands structured content better than unstructured text. Here's how to optimize:

🏗️ Clear Structure

  • Use proper HTML heading hierarchy (h1, h2, h3)
  • Organize content with logical sections
  • Include a table of contents for long articles
  • Use semantic HTML5 elements

💻 Code & Technical Content

  • Use code blocks with proper syntax highlighting
  • Include complete, working code examples
  • Provide context and explanations for code
  • Document API endpoints thoroughly

📊 Data & Facts

  • Present data in tables and structured formats
  • Include citations and sources for facts
  • Use schema markup for structured data
  • Keep information accurate and up-to-date

🎯 Accessibility

  • Ensure content renders without JavaScript
  • Use descriptive alt text for images
  • Avoid heavy client-side rendering
  • Provide text alternatives for media

How do I integrate DeepSeek API?

DeepSeek's API matches OpenAI's format. If you've used OpenAI's API, you can use DeepSeek's with minimal changes:

API setup

// DeepSeek API endpoint
const API_ENDPOINT = 'https://api.deepseek.com/v1';

// Available models
const MODELS = {
  chat: 'deepseek-chat',      // General purpose
  coder: 'deepseek-coder',    // Optimized for coding
  v3: 'deepseek-v3.1'         // Latest model
};

// Example API call
const response = await fetch(`${API_ENDPOINT}/chat/completions`, {
  method: 'POST',
  headers: {
    'Authorization': `Bearer ${DEEPSEEK_API_KEY}`,
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    model: 'deepseek-v3.1',
    messages: [
      { role: 'user', content: 'Your prompt here' }
    ],
    temperature: 0.7
  })
});

Is DeepSeek cost-effective?

Yes. DeepSeek costs 95% less than GPT-4 Turbo. Here's the math:

Cost Comparison (Approximate)

ModelInput (per 1M tokens)Output (per 1M tokens)Cost Savings
GPT-4 Turbo$10.00$30.00-
DeepSeek-V3$0.27$1.10~95% cheaper
Claude 3.5 Sonnet$3.00$15.00-
Gemini Pro$1.25$5.00-

* Prices are approximate and subject to change. DeepSeek offers exceptional value for high-volume applications.

DeepSeek's market position

DeepSeek launched in 2023 and now has 20M+ monthly active users. They hold roughly 5% of China's LLM market.

Most growth comes from developers switching from GPT-4 to save costs. DeepSeek-V3 matches GPT-4's performance at 1/37th the price.

Can xSeek track DeepSeek visits?

No. Nobody can track DeepSeek. Not xSeek, not Google Analytics, not any service. We all identify AI crawlers by their user agent strings. DeepSeek doesn't use one.

xSeek tracks GPTBot, ClaudeBot, PerplexityBot, and other crawlers that identify themselves. DeepSeek crawls anonymously, so it's invisible to every tracking service—not just ours.

FAQ

What is DeepSeek's user agent string?

DeepSeek doesn't have one. Unlike GPTBot or ClaudeBot, DeepSeek crawls without identifying itself.

How do I block DeepSeek?

You can't block DeepSeek with robots.txt. It doesn't use a user agent string, so robots.txt directives won't work.

Is DeepSeek cost-effective?

Yes. DeepSeek costs $0.27 per million input tokens. GPT-4 Turbo costs $10. That's 37x cheaper. Performance matches GPT-4 on coding and reasoning tasks.

Why is DeepSeek good for coding?

DeepSeek-Coder is optimized for programming. It generates code, debugs errors, and understands technical documentation. It supports all major languages and handles complex codebases well.

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