反向 IP 查询

查找同一 IP 地址上托管的所有网站和域名。此工具帮助您发现共享主机环境、识别服务器邻居，并调查潜在可疑 IP。

Enter an IPv4 address below and click 查询 to see a list of domains. The tool queries multiple data sources with automatic failover for the best coverage.

什么是反向 IP 查询？

反向 IP 查询 is the process of finding all domain names that resolve to a specific IP address. While a normal DNS query converts a domain name to an IP address (forward lookup), reverse lookup does the opposite — it starts with an IP and finds the domains associated with it.

这个工具如何工作？

此工具查询多个免费数据源，具有自动故障转移：

• HackerTarget — Primary source, returns domains sharing the same IPv4 address
• ViewDNS — Fallback source with historical DNS data
• Cloudflare DoH — Provides PTR (reverse DNS) records for the IP

如果一个来源失败或返回无结果，工具会自动尝试下一个。使用 CORS 代理确保 API 从您的浏览器正常工作。

常见用例

• 共享主机检测 — See how many websites share the same server
• 安全研究 — Investigate suspicious IPs by finding co-hosted sites
• CDN 检测 — If hundreds of domains appear, the IP likely belongs to a CDN
• 服务器邻居分析 — Check what other sites are on your server's IP
• 渗透测试 — Map the attack surface of a target infrastructure

限制

• CDN 干扰 — Sites behind Cloudflare, Akamai, or other CDNs will show the CDN's IP, not the origin server
• 结果不完整 — Free APIs have limited databases; not all domains are indexed
• 速率限制 — Free APIs have usage limits; excessive queries may be temporarily blocked
• 仅限 IPv4 — Most free reverse IP services do not support IPv6
• 动态托管 — Results reflect a point in time; domains may have moved

理解结果