Whois Domain History Checker

With support for 2026 tlds our cloud based api lets you quickly access any domain s whois data through bulk whois lookup newly registered domains dropped deleted domains expiring domains and whois database download. Our tool will allow you to search the whois for most top level domains in order to learn the registrant information as well as the nameservers and associated ip addresses. Lookup ip cidr asn or domain.

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Similar to how all houses are registered with a governing authority all domain name registries maintain a record of information about every domain name purchased through them along with who owns it and the date till which it has been purchased.

Whois domain history checker. Whois history allows domaintools members access to historical whois records. All relevant historical whois changes are recorded in our database and accessible via our domain history checker and other whois history products. Along with whois api we also provide api access to whois history and reverse whois.

Viewing the whois information for any domain name is as simple as typing the domain name in question into the search bar above. Domaintools is a website that offers a number of premium online tools that are very useful to perform research on a domain. Type the query below go our set of lookup tools allow you to research domain names ip addresses autonomous system number asn and ip net block ranges cidr.

Do you want to know if certain domain name was registered before. These records are maintained in the domaintools database and available to subscription members. Whois lets you perform a domain whois search whois ip lookup and search the whois database for relevant information on domain registration and availability.

Since 1995 domaintools has been tracking the whois history of millions of domains. A whois domain lookup allows you to trace the ownership and tenure of a domain name. You can also find more information and contact details for a domain s owner.

Our whois lookup is designed to help you perform a variety of whois lookup functions. We have tracked the history of millions of domain names for more than 10 years. We track nameserver changes since 2002 for all com net org info biz and us domains.

Whois request tools allow you to search in public whois databases about a specific domain name or ip address ipv4 and ipv6. One of the valuable services offered by domaintools is whois history where you can lookup the historical records of the whois information for a domain. This can help provide insight into a domain s history and additional information.