About IP.CD
Free, fast, and accurate IP address lookup service
What is IP.CD?
IP.CD is a free IP address lookup service that leverages Cloudflare's global edge network to provide fast and accurate IP geolocation information. Whether you're a regular user wanting to check your IP address, or a developer needing to integrate IP lookup functionality, IP.CD has you covered.
Key Features
Dual-Stack Support
Supports both IPv4 and IPv6 address lookups. Use dedicated subdomains 4.ip.cd and 6.ip.cd to force specific protocols.
Rich Geolocation Data
Provides detailed location information including country, region, city, coordinates, and timezone.
Network Information
Displays ASN, ISP, datacenter, and other network-related information to help you understand your connection details.
Developer Friendly
Offers multiple API formats including JSON, plain text, and JSONP for easy integration into your applications.
Technical Architecture
IP.CD is built on Cloudflare Pages and Workers, utilizing Cloudflare's 300+ data centers worldwide to ensure fast response times no matter where you are. All data comes directly from Cloudflare's edge network, with no additional third-party API calls required.
Open Source
IP.CD is an open-source project hosted on GitHub. We welcome community contributions, whether it's reporting issues, making suggestions, or submitting code.
GitHubContact Us
If you have any questions, suggestions, or collaboration inquiries, please reach out to us via GitHub Issues.