What Baiduspider does
Baiduspider is the crawler Baidu uses to fetch and index web content for its search products. Baidu's documentation lists three scenarios it crawls for: mobile search, PC search, and Baidu smart mini-programs. It identifies itself with several user-agent strings, including Baiduspider/2.0 for standard fetches and Baiduspider-render/2.0 for rendered crawling on mobile, PC, and mini-program pages. Baidu states that its crawler IP ranges change dynamically and are not publicly disclosed.
How to control Baiduspider
Target Baiduspider in your robots.txt with the Baiduspider token. Rules apply per bot, so you can allow this one while blocking others, or the reverse.
Allow Baiduspider
User-agent: Baiduspider
Allow: /Block Baiduspider
User-agent: Baiduspider
Disallow: /Baidu does not publish crawler IP ranges but documents a two-step check for genuine Baiduspider traffic: a reverse DNS lookup should return a hostname under baidu.com or baidu.jp, and a forward DNS lookup on that hostname should resolve back to the original IP.
How to identify Baiduspider
Temso identifies Baiduspidertraffic by matching the request's User-Agent header against this pattern. User-agent strings can be spoofed, so treat a match as an indication, not proof.
BaiduspiderBaiduspider FAQ
What is Baiduspider?
Baiduspider is Baidu's search engine crawler. It fetches web pages so they can appear in Baidu's PC search, mobile search, and smart mini-program results, using user-agent strings such as Baiduspider/2.0 and Baiduspider-render/2.0.
How do I block Baiduspider?
Add a robots.txt group addressed to it, for example: User-agent: Baiduspider followed by Disallow: /. Because Baidu does not publish fixed IP ranges, use its documented reverse and forward DNS check (hostnames under baidu.com or baidu.jp) if you need to confirm that traffic claiming to be Baiduspider is genuine.
About Search Engine Crawlers
Classic search indexers that now also feed AI features: Google's AI Overviews and AI Mode build on Googlebot's index, and Microsoft Copilot builds on Bingbot's.
Blocking these removes you from both traditional rankings and the AI answers built on top of those indexes, usually the most costly block of all.
