DNS Lookup
1. Enter Domain
Load Sample
2. DNS Records
How to Use DNS Lookup
- Enter a valid domain name or IP address.
- Select the specific DNS record type (A, AAAA, CNAME, TXT, etc.).
- Click lookup to query the authoritative name servers.
Formulas and Technical Logic
DNS translates human-readable domain names into machine-readable IP addresses. A DNS lookup tool queries the Domain Name System hierarchy. It starts at the root servers, moves to the TLD servers, and finally queries the authoritative nameservers for the domain. Results are returned based on the requested record type.
Key Features
- Queries multiple DNS record types.
- Displays Time to Live (TTL) values.
- Reveals authoritative nameservers.
- Troubleshoots DNS propagation issues.
Reference Table: Common DNS Records
| Record Type | Description | Use Case |
|---|---|---|
| A | Address Record | Maps domain to IPv4 address |
| AAAA | IPv6 Address Record | Maps domain to IPv6 address |
| CNAME | Canonical Name | Aliases one name to another |
| TXT | Text Record | Stores arbitrary text data (e.g., SPF, DKIM) |
| NS | Name Server | Delegates a DNS zone to use specific servers |
Frequently Asked Questions
What is TTL?
TTL stands for Time to Live. It indicates how long a DNS record is cached by resolvers before a new query is required.
Why is my new DNS record not showing?
DNS propagation can take time. ISPs cache older records based on their TTL values. Wait for the TTL to expire.