Subnet Calculator
IPv4 CIDR → network, broadcast, hosts, wildcard.
DNS 레코드 조회.
Enter a value and run.
This tool is not browser-only: your input is sent through toco.tools servers. Private/local destinations are blocked. Results are not stored.
No. DNS resolution runs on the server.
A, AAAA, MX, TXT, CNAME, and NS.