IP Blacklist Lookup checks whether a given IP address appears on known malicious IP blocklists. Identifies both inbound threats (attackers, spammers) and outbound threats (C2 servers, malware hosts).

A library for parsing IPv4 and IPv6 IP addresses in node and the browser.

Regular expression for matching IP addresses (IPv4 & IPv6)

A small Node.js module to retrieve the request's IP address

Get your internal IP address

Check if a string is an IP address

Small package to encode or decode IP addresses from buffers to strings.

[](https://www.npmjs.com/package/ip)

Bash-like brace expansion, implemented in JavaScript. Safer than other brace expansion libs, with complete support for the Bash 4.3 braces specification, without sacrificing speed.

Get current machine IP, MAC and DNS servers.

Check whether an IP(v4 or v6) is in an CIDR range

Checks whether given DNS name or IPv4/IPv6 address belongs to a local machine

A TypeScript library for working with IPv4, IPv6 and ASN numbers. It provides representations of these internet protocol numbers with the ability to perform various IP related operations like parsing, validating etc. on them

Check if IP address is private.

Check if a string is an IP address in CIDR notation

Ip filter middleware for koa, support `whitelist` and `blacklist`.

This is a simple module to validate IP address, check ip address version, check if ip is within a range.

Get your public IP address — very fast!

IP address utilities for node.js, forked from `indutny/node-ip`.

Determine the address of a proxied request