Baidu Spider IP Checker

Baidu Spider IP Checker: Core Features and Principles

Many webmasters need to determine if their website traffic includes fake bots disguised as Baidu Spiders, which can lead to SEO misjudgments or wasted server resources. By comparing against Baidu's officially published active IP ranges, this tool quickly verifies whether an entered IP address belongs to a Baidu search engine spider. It returns the spider name, IP range ownership, and authenticity conclusion, making it a practical assistant for website security and traffic analysis.

Why Choose Our Baidu Spider Checker?

• Directly compares against Baidu's official spider IP database, ensuring results are synced with official updates.
• Minimalist interface: just enter an IP to get results in a second, no registration required.
• Outputs the spider type (e.g., Baiduspider, Baidu Mobile Spider) to facilitate log filtering.

How to Use

1. Enter the IPv4 address you want to check (e.g., 123.125.71.15) into the input box. Domains and IPv6 are not supported.
2. Click the "Check Now" button, and the system will automatically match it against the Baidu Spider IP database.
3. View the results: If the IP belongs to a Baidu Spider, the page will display "Genuine Baidu Spider" along with the specific spider name (e.g., Baiduspider/2.0) and IP range details. If it does not belong, it will prompt "Not a Baidu Spider" or "Not found in the spider database."

Example: Enter 123.125.71.15, Output: "Genuine Baidu Spider - Spider Type: Baiduspider, IP Range: 123.125.71.*"

Frequently Asked Questions (FAQ)

• How can I confirm if an IP is a Baidu Spider? You can directly use this tool to check the IP, or combine it with reverse DNS lookup (the hostname should contain baidu.com or baidu.jp) and User-Agent analysis for a comprehensive judgment.
• What are the User-Agents for Baidu Spiders? Common UAs include Mozilla/5.0 (compatible; Baiduspider/2.0; +http://www.baidu.com/search/spider.html), and Baiduspider-mobile for mobile. However, IP verification remains the most reliable official method.

Important Notes

Please ensure you enter a standard IPv4 address; domains, intranet IPs, and IPv6 formats are not supported. The detection results are based on Baidu's publicly available IP range information. Since the spider IP database may update, we recommend keeping an eye on official announcements. This tool does not record or store your query data, so you can use it with peace of mind. If the query result does not match your expectations, you can try using the crawl diagnostic tool in the Baidu Webmaster Platform for further verification.

Technical Notes & Best Practices

For server log analysis, we recommend a triple verification approach combining IP + Reverse DNS + User-Agent: First, use this tool to check if the IP is within Baidu's official network segments. Next, perform a PTR reverse lookup on the IP (which should return *.baidu.com or *.baidu.jp). Finally, verify that the UA field contains Baiduspider. Examples of common Baidu Spider IP ranges include 123.125.71.0/24 and 220.181.108.0/24. If the UA contains Baiduspider but the IP does not match, it is highly likely a fake crawler and should be blocked.