Agent-Ready
IP Classification.
A reliable IP address API built by developers, for developers. Classify traffic, detect threats, and get firmographic data instantly.
* All code examples use a sample IP (166.117.189.176).
Free & Unlimited
Our core API is completely free, with no rate limits on standard lookups. Use it for any scale.
Performance Focus
Experience sub-10ms average API response time. We guarantee minimal latency for real-time applications.
Global Infrastructure
API servers are strategically located in Europe and the USA for resilient, low-latency access worldwide.
Real-Time Data
Data is continuously updated from hundreds of sources, including RIR WHOIS and proprietary threat intelligence feeds.
Authoritative Sources
Data is derived directly from the five major WHOIS registries: ARIN, RIPE, APNIC, LACNIC, and AFRINIC for maximum authority.
Accurate Classification
Accurately segment traffic into types like hosting, residential isp, or business.
Precision Geolocation
Leverage our proprietary, continuously refined geolocation engine for superior country and city-level accuracy.
Malicious Traffic
Identify high-risk traffic, including known Tor exit nodes, open proxies, and VPNs, critical for risk management and security.
Frequently Asked Questions
IPDetails.io is a fast and highly accurate IP address API used to retrieve comprehensive metadata about any IPv4 or IPv6 address. Our services provide critical intelligence, including geolocation, network ownership (WHOIS/ASN), traffic classification, and abuse scores, all delivered through a single, lightning-fast endpoint.
Our clients utilize the API for several core purposes:
- Security & Risk: Blocking high-risk traffic, such as data center IPs, Tor exit nodes, proxies, and VPNs, to protect services from malicious access.
- Traffic Analysis: Classifying traffic to understand the composition of visitors (e.g., normal residential ISP traffic vs. hosting provider traffic).
- Targeting & Compliance: Using accurate IP geolocation intelligence for targeted advertising, personalization, or enforcing location-based actions (e.g., GDPR compliance).
The API is designed for speed. A simple IP lookup typically takes around 10 milliseconds of processing time, supporting thousands of requests per second (RPS).
Our infrastructure is hosted in key geographical locations, specifically the USA and Europe, to ensure high availability and distributed load balancing for all users.
The core WHOIS and ASN data is updated on a weekly basis, while specific threat intelligence feeds and real-time abuse scores are updated daily to ensure the highest possible relevance and accuracy.
The overall accuracy is constantly being improved, but specific data points have varying levels of precision:
- WHOIS & ASN Data: Extremely accurate as it is sourced directly from RIRs.
- Hosting/Datacenter Detection: Superior to most competitors due to dedicated crawling and validation techniques.
- Geolocation: Very accurate at the country level, and reliably accurate at the city level.
- Proxy & VPN Detection: Moderately accurate; we reliably detect major commercial services, but not unknown or residential proxies.
We encourage you to test for yourself, but our biggest advantages are:
- 100% Free & No Rate Limits: Accessible to everyone, regardless of volume.
- Superior Classification: Our Hosting/Datacenter detection is market-leading.
- Broad WHOIS Coverage: Extensive data including RWHOIS records from various ISPs.
- High ASN Accuracy: Precise type detection for network classification.
You can contact us for any questions, support requests, or feedback at support@ipdetails.io.
Multiple data sources power an accurate API at ipdetails.io