Web Tools

Browse a category or open a tool below to get started.

Categories

• Network ToolsUse practical network tools for subnet calculations, DNS lookups, public IP address checks, network planning, and troubleshooting.

Tools

• What Is My IP Address? (IPv4 & IPv6)Automatically check your public IPv4 and IPv6 addresses. View and copy the country, region, city, AS organization, time zone and ASN of your normal connection.
• IP Subnet Calculator — CIDR & Subnet MaskFree IPv4 subnet calculator to instantly calculate CIDR, subnet masks, network addresses, usable IP ranges, broadcast addresses, and host counts.
• DNS LookupLook up a domain's DNS records, copy the results, and learn how to read them with command examples.