DomainWho

About

Uncover the data behind any website with a single click.

Instantly check public WHOIS records, domain age, and server IP geolocation in a clean, developer-friendly dashboard. 100% Free.

DomainWho is a lightning-fast, privacy-first Chrome extension designed to give you instant insights into the website you are currently visiting. Whether you are doing SEO competitor research, cybersecurity analysis, or OSINT investigations, DomainWho pulls accurate server and domain registration data without ever leaving your browser.

No more messy, hard-to-read WHOIS terminal outputs. DomainWho automatically parses complex ICANN RDAP data into a beautiful, easy-to-read dashboard, while keeping the raw JSON available for developers who need to dig deeper.

🚀 Key Features:

Instant WHOIS & Domain Lookup: Discover the domain registrar, creation date, expiration date, and registration status of any website in milliseconds.

Server IP Geolocation: Instantly resolve the domain’s IPv4 address via Google DNS and map it to its physical server location (City, Region, Country, Timezone, and ISP/Organization).

Dual-View Dashboard: Switch effortlessly between a beautifully formatted Key-Value table for quick reading, and a Raw JSON terminal view for advanced technical analysis.

Smart Local Caching: Queries are cached locally in your browser for 24 hours. If you visit the same domain twice, the data loads instantly without wasting API bandwidth.

100% Free & No Login Required: Built entirely on public, open APIs (GeoJS and ICANN RDAP). There are no premium tiers, no API keys to configure, and absolutely no hidden fees.

🎯 Who is DomainWho For?

Web Developers & IT Admins: Quickly verify DNS propagation and check hosting environments.

SEO Professionals: Analyze competitor domain age, hosting locations, and registrar history to inform your search engine optimization strategy.

Cybersecurity & OSINT Researchers: Safely footprint websites, investigate suspicious domains, and verify server geographic locations.

Domain Flippers: Easily check when a valuable domain name is set to expire.

🔒 Privacy First
Your privacy is guaranteed. DomainWho operates entirely within your browser. It does not track your browsing history, does not use analytics scripts, and only communicates directly with public, secure APIs to fetch the data you request.

⚡️ How to Use:

Navigate to any website.
Click the DomainWho icon in your Chrome toolbar.
Instantly view Domain related information.