WHOIS Lookup
Look up domain registration information
Frequently Asked Questions
What is WHOIS?
WHOIS is a query protocol that allows you to check information about a domain registration on the internet. Through it, you can find out who registered the domain, when it was registered, when it expires, what the DNS servers are, and other relevant information about domain ownership.
What is TLD (Top-Level Domain)?
TLD (Top-Level Domain) is the final extension of a domain, such as .com, .br, .gov.br, .edu.br. Different TLDs have different registration requirements: .gov.br domains can only be registered by government agencies, .edu.br by educational institutions, .org.br by non-profit organizations. Brazilian commercial domains (.com.br, .tec.br) are regulated by Registro.br.
What are the days until expiration?
The days until expiration indicate how much time is left before the domain needs to be renewed. If a domain is not renewed before it expires, it may become unavailable and eventually be released for registration by others. It's important to pay attention to this date, especially if you're considering doing business with a website.
What is DNSSEC?
DNSSEC (Domain Name System Security Extensions) is a DNS security extension that adds an authentication layer to DNS responses. It protects against DNS spoofing attacks, ensuring you are accessing the correct website and not a fraudulent version.
Why don't some registrant details appear?
Many registrars offer privacy services that hide the domain owner's personal information. This is done to protect the owner from spam, phishing attempts, and other forms of abuse. For Brazilian domains (.br), some information is always public due to Registro.br regulations.
What does each domain status mean?
The statuses indicate the current state of the domain: 'published' or 'active' means it is active and working; 'clientTransferProhibited' indicates transfers are blocked; 'clientDeleteProhibited' protects against accidental deletion. These statuses are set by the registrar to protect the domain.
How to lookup company data by CNPJ?
For Brazilian domains, our tool automatically searches and validates the CNPJ associated with the domain through the Federal Revenue Service API. You will see information such as legal name, trade name, registration status, activities, and company address. This helps verify the legitimacy of a website.