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DeepSeek user agents, explained.

DeepSeek crawls anonymously. No user agent, no robots.txt control. Here's what's actually known — and how to optimize content you can't track.

DeepSeek · OfficialUpdated Apr 2026~5 min read0 public user agents
TL;DR

DeepSeek does not publish a user agent for its crawler. Unlike GPTBot or ClaudeBot, there's nothing to block in robots.txt. You can't reliably detect, track, or block DeepSeek traffic.

Overview

DeepSeek is a Chinese AI company founded in 2023. Their DeepSeek-V3 model matches GPT-4 on coding and reasoning benchmarks at roughly 1/37th the API cost, which has driven rapid developer adoption.

Unlike every other major vendor, DeepSeek does not publish a crawler user agent. Their web fetches look like regular browser traffic in your logs.

How to identify the agents

1 crawler

DeepSeek identifies itself with specific user-agent strings. Verify each through a published IP range.

DS

DeepSeek (anonymous)

No documented user agent
Unknown
(no public user-agent string published)

DeepSeek has not published a crawler identifier. Requests come through without a named UA string, so they're indistinguishable from regular browser traffic in server logs.

Verifiabledeepseek.com

How DeepSeek accesses your content

3 access patterns, mapped to the agents above.

1

Anonymous crawl

No public UA, no way to identify DeepSeek requests in your server logs.
2

On-demand retrieval

When users paste URLs into DeepSeek chat, the model may fetch the page — without identifying itself.
3

Training data

Crawled content likely feeds future models, especially for coding tasks.
!
No public control. robots.txt works by matching user-agent strings. DeepSeek doesn't provide one, so standard directives have no target. IP-range blocking is unreliable and risks blocking real users.

Control DeepSeek's access

robots.txt

You control each agent independently. Common configurations below.

You can't block DeepSeek via robots.txtLimitation

There's no UA string to target.
# robots.txt cannot target DeepSeek # DeepSeek does not publish a user-agent identifier, # so directives like the ones below have no effect: # User-agent: DeepSeekBot # Disallow: / # For partial control, consider IP-range blocking at the # firewall layer — but this often blocks real users too.

Catch-all fallback

Use User-agent: * to set a baseline for unidentified crawlers.
# Baseline restrictions that apply to any unknown crawler, # including DeepSeek-style anonymous requests User-agent: * Disallow: /admin/ Disallow: /private/ Disallow: /api/

Optimize content for DeepSeek.

You can't track or block DeepSeek. What you can do is write content it parses cleanly.

Server-render HTML. DeepSeek reads pages like a browser. JS-gated content may not be seen.
Clean code blocks. DeepSeek-Coder excels at code — use proper syntax highlighting and complete examples.
Data in tables. Structured tables outperform free-form prose when the model needs facts.
Schema markup. Article, FAQPage, and SoftwareApplication structured data raise extraction accuracy.
Technical docs thrive. DeepSeek's strength is coding and reasoning — technical content gets referenced more than lifestyle content.

Track DeepSeek visits with xSeek.

No crawler can be tracked anonymously.

xSeek tracks GPTBot, ClaudeBot, PerplexityBot, and every crawler that publishes a UA string. DeepSeek doesn't — so it's invisible to every tracking service, not just ours.

Start free →

Frequently asked questions

DeepSeek doesn't publish one. Unlike GPTBot or ClaudeBot, there's no identifiable string in request headers.
Source: DeepSeek's official site and API documentation. DeepSeek has not published crawler-specific documentation.
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