What is YiyanBot?
YiyanBot is a web crawler operated by Baidu that fetches web content for the yiyan.baidu.com assistant and related ERNIE-generated answers. Agent Analytics can track when it visits your website.
Overview
| Operated By | Baidu |
| Source | Official Website |
| Expected To Follow Robots.txt | Yes |
| Insights Last Updated | August 11, 2026 |
Do you operate this agent? Contact us to suggest an update.
Category
Expected Behavior
YiyanBot makes isolated, on-demand requests rather than crawling your site. Traffic follows user demand, ranging from sporadic fetches to steady visits for a popular assistant.
How To Block YiyanBot With Robots.txt
Add this rule to your robots.txt file to block YiyanBot from accessing your entire website, or use Automatic Robots.txt to block all AI assistants at once. You can customize which pages are blocked by swapping out / for a different path.
User-agent: YiyanBot # https://knownagents.com/agents/yiyanbot
Disallow: /Global Statistics for YiyanBot
As of August 11, 2026, this data reflects agent visits measured across thousands of websites using Agent Analytics, combined with daily scans of the top 1000 websites and their robots.txt files.
Robots.txt Blocked Percentage
Country of Origin
Robots.txt Blocking Trend
1% of top websites block YiyanBot in their robots.txt files.
Overall AI Assistant Traffic
0.7% of all web traffic came from AI assistants.
Frequently Asked Questions
Should I Block YiyanBot?
Usually not. Blocking YiyanBot can keep your pages out of AI-generated answers and eliminate potential citation traffic. It does not improve traditional search rankings. For context, 1% of the top websites we track currently have robots.txt rules for YiyanBot.
Does YiyanBot Follow Robots.txt Rules?
Yes. YiyanBot is expected to follow robots.txt directives, so a disallow rule is the appropriate first step. Automatic Robots.txt can add and maintain that rule, while Agent Analytics lets you verify whether YiyanBot respects it.
Does YiyanBot Access Private Content?
Not ordinarily. YiyanBot fetches pages as an anonymous visitor without a stored login. Content protected by a paywall or login remains out of reach.
Why Is YiyanBot Visiting My Website?
A user asked Baidu's assistant a question your page could help answer. YiyanBot retrieved the page to support its response, often with a citation linking back to your site.
How Can I Tell if YiyanBot Is Visiting My Website?
Agent Analytics tracks YiyanBot visits in real time alongside every other known AI agent, crawler, and scraper. You can also check your server logs for requests whose user-agent string contains "YiyanBot". Look for a single-page request with no follow-up navigation. Because YiyanBot does not publish a verification method, any client can claim its identity and a log match is only a clue.