What does the DNS Lookup tool do?

The DNS Lookup tool from PowerSEOTools.online checks DNS records for any domain name, including A, AAAA, MX, CNAME, TXT, NS and SOA records. It shows a quick summary and the full raw details so you can debug, verify and optimize your DNS configuration.

Which DNS record types are supported?

This tool supports the most commonly used DNS record types: A, AAAA, CNAME, MX, TXT, NS and SOA. You can query a single record type or run an ANY-style lookup to see everything at once.

Is the DNS Lookup tool free?

Yes. The DNS Lookup tool is 100 percent free to use, with no registration required. Reasonable rate limiting may apply to keep the service stable for everyone.

Can I use this tool to debug email and DNS issues?

Absolutely. DNS records like MX, SPF and other TXT entries are essential for email delivery, while A, AAAA, CNAME and NS records are critical for website performance and uptime. This tool helps you quickly inspect and verify those records.

Does the DNS lookup run in real-time?

Yes. Each lookup queries live DNS records in real-time from the server running PowerSEOTools.online, giving you an up-to-date view of how your domain resolves on the internet.

DNS Lookup

Check DNS records for any domain name. View A, AAAA, MX, CNAME, TXT, NS and SOA records with a clean summary and full raw details for debugging and optimization.

Domain / Hostname

You can paste a full URL (https://example.com) and we will extract the hostname automatically.

Record type

ANY Default mode queries the most common DNS record types.

Choose a specific record type for focused debugging or use ANY to see a complete picture.

Tips

Use this tool to verify DNS changes, debug email issues (MX, SPF, DKIM), or confirm that your domain resolves correctly from the public internet.

No lookup yet. Enter a domain above and click Run DNS Lookup.

IPv4 (A)

Unique IPv4 addresses found.

IPv6 (AAAA)

Unique IPv6 addresses found.

Name servers (NS)

NS records detected for this domain.

Mail exchangers (MX)

MX records (mail servers) detected.

TXT records

SPF, DKIM and other TXT entries.

TTL range & record count

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Min–max TTL and total record count.

DNS records table

No DNS lookup performed yet.

DNS records will appear here after you run a lookup.

Raw DNS data (JSON)

Free Online DNS Lookup Tool

The DNS Lookup tool from PowerSEOTools.online helps you understand exactly how a domain resolves on the internet. It queries live DNS records for your hostname and displays both a human-friendly summary and the raw data, which is ideal for debugging and technical analysis.

Common Use Cases

Website setup: Confirm that A and AAAA records point to the correct server IPs.
Email deliverability: Inspect MX records and TXT records for SPF, DKIM, and DMARC entries.
DNS migrations: Verify that new name servers (NS) and records are visible after moving hosting or DNS providers.
SEO and uptime checks: Ensure your domain resolves consistently and that DNS is not misconfigured.

How to Read the Results

A / AAAA: These records map your domain to IPv4 and IPv6 addresses.
MX: These records define which mail servers handle email for your domain and in what priority order.
CNAME: Canonical name records point one hostname to another, often used for subdomains.
TXT: Flexible text records used for SPF, DKIM, DMARC, verification codes and other metadata.
NS: Name server records indicate which DNS servers are authoritative for your domain.
SOA: Start of Authority record containing serial, refresh, retry and expiry values for the zone.

Best Practices When Changing DNS

Lower TTL values before major changes so updates propagate more quickly.
Update MX, SPF and DKIM records together when moving email providers.
Use CNAME records for flexible subdomain pointing instead of duplicating A records.
Always verify DNS from an external tool like this after making changes in your DNS provider’s panel.

Combine this DNS Lookup with other Domain & IP tools on PowerSEOTools.online to build a complete picture of your domain’s technical health.