WebOneWordDNS describes how a name resolves to services. It can help you inspect website routing, mail configuration and published verification text, but it is not a substitute for a registration lookup or a purchase check.
Nameservers and address records
NS records identify authoritative nameservers associated with a DNS name. A records provide IPv4 addresses and AAAA records provide IPv6 addresses. A domain can publish more than one address, and a response from a recursive resolver may reflect cached information.
A website loading at an address does not prove that the person offering a domain controls it. Hosting arrangements and domain ownership are separate matters.
Mail and verification information
MX records describe mail-routing destinations and priorities. TXT records can hold several kinds of text, including service-verification information and email policies. Some records use special subdomain labels, such as _dmarc.example.com, rather than the root domain.
Read the complete record and its context. The presence of a TXT value is not a promise that every related application, mailbox or security control is working correctly.
Certificate authorization
CAA records publish certificate-issuance policies for a name. They can be useful when reviewing a domain's technical setup, but they are not a complete audit of website encryption or application security.
Use the time to live correctly
The time to live, or TTL, describes a caching interval for a DNS answer. It is not the age of the domain or the remaining registration term. Recently changed DNS can appear differently through different resolvers until cached answers are replaced.
The WebOneWord DNS tool queries Google Public DNS over HTTPS and shows the returned records and their TTL values. Google's JSON API documentation explains the response format and available record types.
An empty answer is not an available domain
A registered name may have no record of the type you requested. A resolver can also return NXDOMAIN or a temporary failure. Neither should be turned into an automatic registration-availability claim.
To investigate whether a registration record exists, use the RDAP and WHOIS lookup. To investigate a buying opportunity, confirm the live offer with a registrar or marketplace.
What to record before a transfer
For a domain you control, keep a copy of the relevant DNS settings before changing providers. A domain transfer and a DNS hosting change can be different operations. Confirm the intended process with the providers involved rather than assuming that a registration transfer automatically reproduces all service records.
For a domain you are considering buying, treat public DNS as technical context and complete separate ownership, rights and transaction checks. Our marketplace comparison guide explains the purchase questions that DNS cannot answer.
Maintained by WebOneWord Team. Last reviewed: 2026-10-06.