Baidu · Other

YiyanBot

YiyanBot is Baidu's crawler. This crawler handles ads, previews, and other automated fetches.

Crawler facts

Operator	Baidu
User agent token	`yiyanbot`
Traffic type	Other
Verification	User agent only
IP source	Baidu publishes no IP list.

What "verified" means for YiyanBot

Baidu publishes no IP list for YiyanBot, so a request claiming this user agent can never be proven genuine. DataSaaS always records it as unverified.

Track it

YiyanBot fetches raw HTML and never runs JavaScript, so no browser tag can see it. Install the DataSaaS server-side package to record every request and verify the ones that publish IP ranges.

Read the bot-traffic setup guide

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