Proxy Checker
Detect a Proxy from an IP
Enter an IP to check whether it is a proxy, what type it is, and how confident the verdict is — then automate the same check through the API.
How to detect a proxy from an IP address
To detect a proxy from an IP you check whether the address is relaying traffic on behalf of someone else. That means testing for open proxy endpoints, matching against residential and datacenter proxy pools, correlating with the Tor exit list, and inspecting forwarding headers and timing. The proxy checker above runs these checks instantly and returns the proxy type and a confidence score.
What the proxy check looks at
Proxies leave several traces — the verdict weighs all of them.
Open proxy endpoints
Exposed HTTP/HTTPS and SOCKS proxy services on the IP.
Pool membership
Presence in residential or datacenter proxy provider pools.
Tor correlation
Match against the live Tor exit-node list.
Forwarding headers
Headers that reveal relayed or chained requests.
ASN context
Hosting vs. residential ownership of the range.
Type & score
A clear proxy type label plus a 0–100 confidence value.
Where this helps
Forms & checkout
Add friction when a request comes through a proxy.
Comment & review spam
Block proxied spam at the source.
Geo enforcement
Stop proxy-based circumvention of regional rules.
Security investigation
Quickly triage a suspicious IP during an incident.
Explore related detection tools
试试我们的其他工具
Frequently asked questions
为什么选择 IPScanner
全球数千家企业的信赖之选，提供可靠的 IP 情报服务
业界领先的准确率
我们由 AI 驱动的检测技术准确率高达 99.8%，远超传统方法。
企业级性能
专为大规模部署而打造，具备高可靠性和 99.99% 的正常运行时间 SLA，可满足关键业务应用需求。
全面的覆盖范围
我们维护着规模最大的 VPN 服务、代理和匿名工具数据库，并每日更新。
简单的集成
易于使用的 REST API，支持所有主流编程语言和框架。
透明的沟通
提供清晰的文档，并定期发布有关检测能力和改进的更新。
专家级支持
专属技术支持团队，在 IP 情报和网络安全领域拥有深厚的专业知识。
