What Is a DNS Lookup?
A DNS lookup checks the Domain Name System records associated with a domain or hostname. These records tell browsers, mail systems and other network services how a domain should be resolved.
GIMSEO DNS Lookup provides a quick way to inspect common DNS records online. Results include the record name, type, TTL and returned value, making the tool useful for SEO professionals, developers, site owners and troubleshooting.
Supported DNS Record Types
- A: Maps a hostname to an IPv4 address.
- AAAA: Maps a hostname to an IPv6 address.
- CNAME: Points a hostname to another canonical hostname.
- MX: Identifies mail servers responsible for receiving email.
- NS: Identifies authoritative name servers.
- PTR: Performs reverse DNS lookups for IP addresses.
- SRV: Publishes service location, priority, weight and port information.
- SOA: Provides zone authority and DNS timing information.
- TXT: Stores text records commonly used for verification and email policies.
- CAA: Specifies certificate authorities permitted to issue certificates.
- DS: Contains DNSSEC delegation information.
- DNSKEY: Publishes DNSSEC public keys.
How to Use the DNS Lookup Tool
- Enter a domain such as example.com or paste a full URL.
- Choose Google DNS or Cloudflare DNS.
- Select a DNS record type, or keep ALL selected.
- Click Lookup DNS.
- Review the returned records, TTL values and resolver status.
DNS Lookup FAQs
Can I enter a full URL?
Yes. The tool extracts the hostname from a URL such as https://www.example.com/page and performs the DNS lookup for that hostname.
Can I perform a reverse DNS lookup?
Yes. Select PTR and enter an IPv4 or IPv6 address. The tool converts the address into the appropriate reverse DNS query name.
What does TTL mean?
TTL, or Time to Live, indicates how long a DNS response may be cached before it should be queried again.
Why does ALL perform multiple queries?
DNS-over-HTTPS resolvers query record types individually. ALL therefore checks each supported record type and combines the responses into one result.