Network & IP Tools

Find geographic location, ISP, and network details for any public IP address.

Query DNS servers to find A, AAAA, MX, CNAME, TXT, and NS records.

Retrieve domain registration info, expiry dates, registrar info, and owners.

Check latency, estimate packet loss, and trace route hops to any host.

Scan standard ports to audit security profiles of active host domains.

Compute host boundaries, usable ranges, masks, and network IDs.

Identify ASN registrar networks, upstream peers, and IP block allocations.

Determine manufacturer, hardware vendor, and device type allocations.

Convert IP address representations between expanded, compressed, and mapped forms.

Audit status of specific listening ports on target servers or networks.

Compute host boundaries, ranges, and subnets for IPv6 allocations.

Convert arbitrary IP ranges (start-end) into CIDR blocks.

Allocate variable length subnet masks based on required hosts.

Summarize multiple IP ranges and CIDR blocks into a single supernet.

Calculate wildcard (inverse) masks for Cisco access control lists (ACLs).

Calculate TCP Maximum Segment Size (MSS) based on MTU and protocol encapsulation overhead.