Do you flag legitimate cloud services?

We report the hosting verdict with a score and ASN details, so you can allowlist known good services while blocking abusive ones.

Which endpoint returns this?

GET /v1/proxy/{ip} returns the proxy type including datacenter, plus ASN data via /v1/asn/{ip}.

Is there a free tier?

Yes, 100 lookups per month free.

IPScanner

Datacenter Proxy Detection

Most proxy traffic originates from cloud and hosting networks. Flag datacenter proxies by IP with ASN-aware detection and a confidence score.

Overview

What is datacenter proxy detection?

Datacenter proxies run on servers in hosting and cloud providers rather than on home connections. They are cheap and fast, which makes them the most common source of automated and abusive traffic. Datacenter proxy detection identifies IPs that belong to hosting ASNs and known proxy infrastructure, so you can separate genuine residential visitors from server-originated requests.

Signals

How datacenter proxy detection works

Hosting origin is the strongest signal, we enrich it with reputation.

Hosting ASN mapping

Classifies IPs owned by cloud and hosting providers worldwide.

Known proxy infrastructure

Matches against ranges sold by commercial datacenter proxy services.

Cloud provider ranges

Identifies AWS, GCP, Azure and other cloud egress IPs.

Reputation history

Past abuse from the range raises the score.

Non-residential signal

Clear flag that an IP is not a consumer ISP connection.

Confidence score

A 0–100 value so you can allow legitimate server traffic where needed.

Use cases

Where teams use it

Scraping defense

Block high-volume scraping from cloud servers.

Signup abuse

Stop disposable accounts created from hosting IPs.

Rate-limit tuning

Apply stricter limits to datacenter-origin traffic.

Analytics hygiene

Exclude server traffic from human-visitor metrics.

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.Proxy Detection APIDetect HTTP, SOCKS, residential and datacenter proxies plus Tor exit nodes from any IP with one REST call. Real-time proxy detection API with a free tier.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.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.

Explore the Suite

Try Our Other Tools

VPN DetectionIdentify IPs that route through encrypted VPN tunnels to mask their real location.Proxy DetectionFlag HTTP, SOCKS, residential and data-center proxies plus Tor exit nodes.IP GeolocationMap any IP to country, region and city with ISP and timezone data.ASN DataLook up the Autonomous System Number and organization that owns an IP range.WHOIS InfoRetrieve registration and ownership records for domains and IP ranges.

FAQ

Frequently asked questions

Datacenter proxies run on hosting/cloud servers and are detectable by ASN. Residential proxies use real ISP IPs and need reputation-based detection.

Why Choose IPScanner

Teams use IPScanner to tell real users apart from masked and automated traffic.

Accuracy you can measure

Verdicts come with a 0 to 100 confidence score, so you tune the threshold to your own risk instead of trusting one number.

Built to scale

The API runs on infrastructure sized for production traffic, with a 99.99% uptime target for business-critical use.

Data that stays fresh

We refresh VPN, proxy, and Tor lists continuously, so newly spun-up servers get caught quickly.

Easy to wire in

A plain REST API works with any language or framework. Most teams are live the same afternoon.

Documentation that's honest

Worked examples in curl, JavaScript, and Python, plus straight notes on what each signal does and doesn't mean.

People who know the domain

Support comes from engineers who work on IP detection every day, not a generic help desk.

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