Can it detect residential proxies?

Yes. Residential proxies are the hardest to catch, so we use network reputation and pool intelligence rather than relying on ASN alone.

Is there a free tier?

Yes — 100 lookups per month on the Free plan, scaling up through paid tiers.

What endpoint do I call?

GET /v1/proxy/{ip} with your API key. The response includes the proxy verdict, type and confidence score.

How current is the data?

Proxy and Tor data is refreshed continuously so newly spun-up nodes are caught quickly.

IPScanner

Proxy Detection API

Identify proxies and Tor exit nodes behind any IP address in real time. One endpoint covers HTTP, SOCKS, residential and datacenter proxies.

Overview

What is a proxy detection API?

A proxy detection API tells you whether an IP address is acting as an intermediary — an HTTP or SOCKS proxy, a residential proxy network, a datacenter proxy or a Tor exit node. IPScanner classifies the proxy type and returns a confidence score so you can decide whether to block, challenge or allow the request. It removes the need to maintain proxy blocklists yourself.

Signals

How proxy detection works

Different proxy types leak different signals — we look for all of them.

Open proxy fingerprints

Detection of exposed HTTP/HTTPS and SOCKS4/5 proxy endpoints.

Residential proxy networks

Identifies IPs sold through residential proxy pools despite looking like home connections.

Datacenter ranges

Hosting and cloud ASNs commonly used for proxying at scale.

Tor exit nodes

Live correlation against the public Tor exit list.

Header & latency anomalies

Forwarding headers and timing patterns typical of relayed traffic.

Proxy type & score

Each result names the proxy type and a 0–100 confidence value.

Use cases

Where teams use it

Bot & scraping defense

Block scrapers that rotate through proxy pools.

Ad fraud

Filter invalid traffic coming from proxy infrastructure.

Account integrity

Catch multi-accounting hidden behind residential proxies.

Compliance

Verify the true origin of a request for KYC and licensing.

More tools

Explore related detection tools

VPN Detection APIReal-time VPN detection API. Send any IP and get back whether it belongs to a commercial VPN, with a confidence score. Free tier, simple REST, fast global lookups.Residential Proxy DetectionDetect residential proxies that disguise traffic as ordinary home connections. Real-time residential proxy detection by IP with confidence scoring and a free tier.Datacenter Proxy DetectionDetect datacenter and cloud-hosted proxies by IP in real time. Identify hosting ASNs used for proxying and scraping with confidence scoring and a free API tier.How to Detect a VPNLearn how to detect whether an IP address is using a VPN. Try the free VPN checker below, understand the signals, and automate it with the VPN detection API.

Explora la suite

Prueba nuestras otras herramientas

Detección de VPNIdentifica las IP que se enrutan a través de túneles VPN cifrados para ocultar su ubicación real.Detección de proxyMarca proxies HTTP, SOCKS, residenciales y de centros de datos, además de los nodos de salida de Tor.Geolocalización de IPAsigna cualquier IP a un país, región y ciudad, con datos de ISP y zona horaria.Datos de ASNConsulta el número de sistema autónomo (ASN) y la organización propietaria de un rango de IP.Información WHOISObtén los registros de inscripción y titularidad de dominios y rangos de IP.

FAQ

Frequently asked questions

HTTP/HTTPS, SOCKS4/5, residential proxies, datacenter proxies and Tor exit nodes — each reported with its own type label.

Por qué elegir IPScanner

La confianza de miles de empresas en todo el mundo para ofrecer inteligencia de IP fiable

Precisión líder en el sector

Nuestra detección impulsada por IA alcanza una precisión del 99,8 %, superando con creces a los métodos tradicionales.

Rendimiento de nivel empresarial

Diseñado para escalar con gran fiabilidad y un SLA de disponibilidad del 99,99 % para aplicaciones críticas del negocio.

Cobertura integral

Mantenemos la mayor base de datos de servicios VPN, proxies y anonimizadores con actualizaciones diarias.

Integración sencilla

Una API REST fácil de usar para todos los principales lenguajes de programación y frameworks.

Comunicación transparente

Documentación clara y actualizaciones periódicas sobre nuestras capacidades de detección y mejoras.

Soporte experto

Un equipo de soporte técnico dedicado con amplia experiencia en inteligencia de IP y ciberseguridad.

Confían en nosotros