Baidu

Baidu documents Baiduspider behavior and robots rules. Baidu does not publish a single downloadable JSON of crawler prefixes like Google or Bing; the prefix list below is a maintained aggregate commonly used for allowlisting, deduplicated to remove subnets wholly covered by a broader entry.

Baiduspider and related crawlers are also frequently observed on China Unicom backbone and IDC space, notably AS4837 and AS23724, in addition to Baidu’s own AS38365/AS55967. Use reverse DNS (*.baidu.com / *.baidu.jp) and vendor guidance - not ASN or static lists alone.

Autonomous systems

AS38365 AS55967 AS4837 AS23724

Baidu / Baiduspider (maintained IPv4) Maintained feed

Official sources

https://sourcecidr.com/feeds/baidu.json Open raw JSON

Published prefixes

45.113.192.0/24
45.113.193.0/24
45.113.194.0/24
103.6.76.0/22
103.235.44.0/22
104.193.88.0/24
104.193.89.0/24
104.193.90.0/24
106.12.0.0/15
111.161.35.0/24
119.63.192.0/21
119.75.208.0/20
123.125.113.0/24
123.125.114.0/24
123.125.115.0/24
123.125.166.0/24
123.125.174.0/24
123.125.221.0/24
125.39.78.0/23
131.161.8.0/22
150.242.120.0/22
154.85.32.0/21
154.85.40.0/22
154.85.44.0/23
154.85.48.0/21
154.85.56.0/21
156.240.112.0/21
156.240.120.0/21
180.76.0.0/16
182.61.0.0/16
185.10.104.0/22
202.46.48.0/20
222.199.188.0/22