Top 5 Free Online WHOIS Lookup Tools

In the vast online world, finding detailed information about a specific domain or IP address can be challenging. WHOIS Lookup tools come in handy to provide you with the necessary information. Here are five free online WHOIS Lookup tools that can help you retrieve the details you need: provides a simple and straightforward WHOIS domain lookup service. You can trace the ownership and tenure of a domain name, just like how all houses are registered with a governing authority. The WHOIS database contains details such as the registration date of the domain name, when it expires, ownership and contact information, nameserver information of the domain, the registrar via which the domain was purchased, and more. An IP lookup service is also available, allowing you to track details for a specific IP address​.

CentralOps offers a collection of free online network tools, including WHOIS, traceroute, nslookup, dig, ping, and their own Domain Dossier and Email Dossier. It is compatible with IPv6, making it a versatile tool for modern networking tasks​​.

Pentest-Tools offers a WHOIS Lookup tool that allows you to find information about an Internet resource, be it a domain name or an IP address. It gives you useful information including the name of the owner company, address of the owner company, the IP range that a certain IP belongs to, contact phone number, contact email, administrator’s name, and name servers​​.

HackerTarget provides an online WHOIS lookup tool that can find the registered owner, netblock, ASN, and registration dates of a domain or IP address. This tool is particularly useful in the information security sector, helping to track down attackers or find targets for assessments or planned attacks. It displays the results in your web browser for easy access​.

FreeOnlineTools offers a WHOIS Lookup tool that identifies the owner of a website or domain name. It provides insights such as the domain’s registration and expiry dates, server locations, owner’s contact details, and more. Some sites also offer additional features like email alerts for new domains registered with similar keywords that could potentially infringe upon your brand’s identity. This tool is beneficial for businesses looking to protect their brands from potential infringement issues and individuals wanting extra information about certain websites before visiting them online​.

These tools are invaluable resources when you need to get information about a specific domain or IP address. Whether you are a business owner, a cybersecurity professional, or a curious internet user, these free WHOIS lookup tools can provide the information you need in a matter of seconds.

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