IPv4 subnet calculator

Effortless IPv4 planning: find subnets, CIDR ranges, and usable IPs in real time for sysadmins and developers.

Calculate subnet

What's my IP

Quickly view your public IP address, location, and connection details for fast setup and diagnostics.

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DNS checker

Test your domain’s DNS records worldwide to troubleshoot issues and ensure proper configuration.

Verify DNS

Browser information

Instantly identify browser, device, and IP details to resolve issues or share with support teams.

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