DNS Record Lookup - Free DNS Checker Tool

Instantly query any DNS record type for any domain - A, AAAA, MX, CNAME, TXT, PTR, NS, SOA - using Google, Cloudflare, OpenDNS or Quad9. Free, real-time, no signup required.
Record types
Querying DNS records…
Real DNS lookup via Google DNS · Cloudflare · OpenDNS · Quad9 · no signup required

How to Use the DNS Record Lookup Tool

1
Enter a domain name (e.g. example.com) in the input field - the tool strips https:// and trailing paths automatically
2
Select a DNS resolver - Google, Cloudflare, OpenDNS, Quad9, or Global (queries three resolvers and merges unique results)
3
Select which record types to display using the checkboxes - All selects all eight types at once
4
Click Check DNS - results appear grouped by record type with all relevant fields. Toggle checkboxes to filter the view without re-querying

DNS Record Types - What Each One Does

DNS records are instructions stored in the Domain Name System that control how traffic is routed for a domain. Each record type serves a specific purpose - here's a quick reference for all supported types.

Record What it does Relevant for
A Maps a domain name to an IPv4 address Website hosting, server routing
AAAA Maps a domain name to an IPv6 address IPv6-enabled hosting and services
MX Defines which mail servers are responsible for receiving email for the domain Email delivery - missing MX = no email received
CNAME Creates an alias that points one domain name to another Subdomains, CDN, third-party services
TXT Stores arbitrary text data - used for SPF, DKIM, DMARC, and domain ownership verification Email authentication, domain verification
PTR Maps an IP address back to a domain name (reverse DNS lookup) Mail server reputation, spam filtering
NS Specifies the authoritative nameservers responsible for the domain's DNS zone DNS delegation and management
SOA Contains administrative details about the DNS zone - serial number, refresh intervals, and the responsible contact DNS zone management and troubleshooting
→ MX, TXT, and PTR records directly affect email deliverability. Use the dedicated tools: DMARC Checker · SPF Checker · DKIM Checker · MX Record Checker

Why DNS Records Matter for Email & Security

DNS records do more than route web traffic - they are the backbone of email authentication and domain security. Misconfigured or missing DNS records are the most common cause of email deliverability failures and one of the primary attack vectors for domain spoofing.

Email authentication
SPF, DKIM, and DMARC all live in TXT records. Without them, receiving servers can't verify your emails are legitimate.
Mail routing
MX records tell the internet which servers accept email for your domain. A missing or wrong MX record means lost email.
Reverse DNS (PTR)
PTR records map your sending IP back to a hostname. Many spam filters reject email from IPs without a valid PTR record.
Propagation & TTL
DNS changes don't apply instantly - TTL controls how long records are cached. Lower TTL during migrations speeds up rollout.

Frequently Asked Questions

A DNS record lookup queries the Domain Name System to retrieve records associated with a domain or IP address. Records include routing instructions (A, AAAA, MX), aliases (CNAME), authentication data (TXT), reverse DNS (PTR), nameserver information (NS), and zone administration details (SOA). This tool performs live lookups in real time using your choice of DNS resolver.

Enter the domain name in the tool above, select a record type (or All), and click Lookup DNS — results appear instantly grouped by type. Alternatively, you can use nslookup -type=MX example.com in a terminal, though this tool queries all record types at once and displays results in a structured format without needing command-line access.

 

An A record maps a domain name to an IPv4 address (e.g. 93.184.216.34). An AAAA record maps a domain to an IPv6 address (e.g. 2606:2800:220:1:248:1893:25c8:1946). Most domains publish both — A records for IPv4 connectivity and AAAA records for IPv6. If only an A record exists, IPv6-only clients may not be able to reach the domain.
Three record types directly affect email: MX records define which servers receive your email; TXT records publish SPF, DKIM, and DMARC for authentication; PTR records map your sending IP to a hostname, which is checked as a trust signal by receiving mail servers. Missing or misconfigured records in any of these types can cause email to be rejected or land in spam.
nslookup is a command-line tool built into Windows, macOS, and Linux that performs DNS queries from your terminal. This tool provides the same functionality in a browser — no terminal access needed. It also queries multiple record types simultaneously and displays results grouped by type with TTL values, which would require multiple separate nslookup commands to replicate manually.
Different DNS resolvers (Google, Cloudflare, OpenDNS) may return slightly different results due to caching — each resolver caches records for the duration of the TTL and may not yet reflect recent changes. If you’ve recently updated a DNS record and it’s not showing up, try switching resolvers or wait for the TTL to expire. Google and Cloudflare typically refresh faster than older resolvers.

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Monitor Your DNS Records & Email Security Automatically


PowerDMARC alerts you the moment your DNS records change — before misconfiguration affects your email deliverability or domain security.



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