A command-line utility designed to recursively spider webpages for URLs. It works by actively traversing websites - following links embedded in webpages, parsing resources like sitemaps and robots.txt files, and even processing local files - to uncover every URL.

A command-line utility designed to discover URLs for a given domain in a simple, efficient way. It works by gathering information from a variety of passive sources, meaning it doesn't interact directly with the target but instead gathers data that is already publicly available.

A command-line utility designed to discover subdomains for a given domain in a simple, efficient way. It works by gathering information from a variety of passive sources, meaning it doesn't interact directly with the target but instead gathers data that is already publicly available.

A Go (Golang) package for for generating, managing, and signing X.509 certificates.

A command-line utility for working with URLs.

A Go (Golang) package for rich, structured error handling with full stack-trace support, error wrapping, classification, and formatting.

A Go (Golang) high-quality, concurrency-safe implementation of Round Robin(RR) algorithm for managing and cycling through a collection of items.

A command-line utility for reading from standard input and writing to both standard output and file, providing powerful features for file manipulation and data processing. It combines the functionality of tee, the soaking behavior of sponge, and more.

A Go (Golang) package for robust and flexible HTTP communication. It provides advanced features such as configurable retry policies, automatic fallback between HTTP/1.x and HTTP/2, and fluent request building with connection management.

A Go (Golang) package for flexible and extensible structured logging. It provides a robust logging system with support for customizable log levels, formatters, writers, and colorized console output.