DNS Check
Reverse DNS
DNS Lookup is a tool that queries Domain Name System (DNS) servers to retrieve information about domain names. It translates human-readable domain names into IP addresses and provides detailed information about how domains are configured.
DNS Record Types:
- A: Maps domain to IPv4 address (e.g., example.com → 192.168.1.1)
- AAAA: Maps domain to IPv6 address
- CNAME: Creates alias pointing to another domain
- MX: Mail exchange servers for email delivery
- NS: Name servers that manage the domain
- TXT: Text records for verification and configuration
- SRV: Service records for specific services
Common uses:
- • Verify domain configuration and DNS settings
- • Troubleshoot website connectivity issues
- • Check email server configuration (MX records)
- • Verify domain ownership and security settings
- • Debug DNS propagation issues
How it works: Sends queries to DNS servers to retrieve specific record types. The DNS system is hierarchical, with root servers, TLD servers, and authoritative servers working together to resolve domain names.