DNS Lookup Tool

The DNS Lookup Tool queries the live Domain Name System and shows you the records that are actually published for a domain right now. You enter a hostname such as example.com, pick the record type you care about, and the tool returns the matching records in a clear table listing the name, type, time-to-live and value for each answer. It is the online equivalent of running the classic nslookup or dig commands, but it works from any browser with no install and no command line.

DNS is the address book of the internet: it maps human-friendly names to the servers, mail hosts and verification strings that make a domain work. This tool exposes the most important record types in one place. A and AAAA records point a name at IPv4 and IPv6 addresses, MX records route email to the correct mail servers, TXT records hold SPF, DKIM and domain-verification strings, NS records list the authoritative name servers, CNAME records alias one name to another, SOA records describe the zone, and CAA records declare which certificate authorities may issue certificates.

Because the lookup happens against a live DNS-over-HTTPS resolver, the answers reflect the current state of the domain rather than a cached snapshot. That makes the tool ideal for confirming that a change you just made has propagated, for diagnosing why email is bouncing, or for auditing the DNS footprint of a domain you are about to work with. The domain you type is only used to build the query; nothing is stored.

Features

• Queries eight common record types: A, AAAA, MX, TXT, NS, CNAME, SOA and CAA.
• Uses fast, encrypted DNS-over-HTTPS so lookups are private and reflect live data.
• Displays the record name, resolved type, TTL and value for every answer in a table.
• Cleans up quoted TXT values and trailing dots so records are easy to read.
• Reports how many records were returned and which type you queried as quick stats.
• Validates the domain in your browser before sending a query, catching typos early.
• Exports the record table to CSV or XLSX, or copies it for tickets and documentation.

How to use DNS Lookup Tool

1. Enter a domain name such as example.com; any protocol, path or www prefix is stripped for you.
2. Choose the record type you want to inspect from the dropdown, for example MX for mail routing.
3. Press the Lookup button to send the live DNS-over-HTTPS query.
4. Read the results table, checking the value column for the addresses, hosts or strings returned.
5. Note the TTL column to understand how long each record is cached before it refreshes.
6. Export or copy the table to attach the evidence to a change request or support ticket.

Benefits

• Administrators confirm that DNS changes have propagated before flipping traffic to a new host.
• Email teams verify MX, SPF and DKIM TXT records when diagnosing deliverability problems.
• Developers check where a hostname resolves without leaving the browser or using a terminal.
• Security reviewers audit CAA and NS records to understand a domain's certificate and hosting setup.
• Support staff quickly gather DNS evidence to escalate an issue with a hosting provider.
• Anyone learning how the internet works sees real DNS records explained by type.

Each DNS record type answers a different question about a domain. If email is not arriving, the MX records tell you which servers should receive it, and the TXT records hold the SPF and DKIM policies that decide whether messages are trusted. If a website will not load, the A and AAAA records show where the name points, and the NS records reveal which name servers are authoritative for the zone. Looking at the right type turns a vague outage into a specific, fixable finding.

TTL, the time-to-live value, is easy to overlook but very useful. It tells resolvers how many seconds they may cache a record before asking again. A high TTL means a change you make will take longer to be seen everywhere, while a low TTL lets updates propagate quickly at the cost of more lookups. Watching the TTL helps you plan migrations and understand why an old value might still be appearing for some visitors.

This tool performs genuine live lookups over an encrypted DNS-over-HTTPS connection, so the answers are current rather than a stored copy. Only the domain and record type you choose are sent as part of the query, and no results are retained after the page shows them. If a lookup fails, it is almost always a temporary network issue or a domain that simply has no records of the type you selected, in which case trying another type usually clarifies the picture.