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
試試我們的其他工具
Frequently asked questions
為何選擇 IPScanner
全球數千家企業的信賴之選，提供可靠的 IP 情報服務
業界領先的準確率
我們由 AI 驅動的偵測技術準確率高達 99.8%，遠勝傳統方法。
企業級效能
專為大規模部署而設計，具備高可靠性及 99.99% 的正常運行時間 SLA，切合關鍵業務應用所需。
全面的涵蓋範圍
我們維護著規模最大的 VPN 服務、代理和匿名工具資料庫，並每日更新。
簡易整合
易於使用的 REST API，支援所有主流程式語言及框架。
透明的溝通
提供清晰的文件，並定期發佈有關偵測能力和改進的最新資訊。
專家級支援
專屬技術支援團隊，在 IP 情報和網絡安全領域擁有深厚的專業知識。
