Parse and Validate Any URL Instantly Validate URL format and structure with protocol, domain, path, and query string analysis.

The tool works under the hood by utilizing the React framework and its hooks, specifically useState and useCallback, to manage state and handle user interactions. When a URL is input, it trims the string to remove any whitespace and then attempts to create a new URL object using the browser's native URL API. If successful, it extracts various components such as protocol, hostname, port, pathname, search query, and fragment from the URL object. The tool also uses regular expressions to check if the hostname is an IPv4 address and splits the hostname string to identify the top-level domain (TLD).

It checks for security by verifying if the URL's protocol is 'https:', in which case it adds a note indicating that the URL uses HTTPS, or 'http:', where it warns about the lack of security. The tool then constructs an array of strings containing details about each component, including whether they are valid or not. If any part of this process fails, such as when trying to create a new URL object with an invalid format, it catches the error and returns an array with notes on what went wrong, along with suggestions for fixing common issues like missing protocols or domain names without TLDs.

The input is processed character by character using JavaScript's built-in string methods like trim, replace, and split. Error handling is also implemented to catch any exceptions that may occur during the validation process, providing informative error messages instead of crashing. The URL API provides a standardized way to work with URLs across different browsers and platforms, ensuring consistent results regardless of the environment in which it's used.

The use of TypeScript interface UrlResult allows for strong typing of the validation result object, ensuring that it always contains the expected properties: valid, indicating whether the URL is valid or not, and details, an array of strings providing a breakdown of the URL components. This typed approach helps catch potential errors early in development, making the code more maintainable and reliable. The React hooks useState and useCallback enable efficient management of state changes and function re-renders, optimizing performance by minimizing unnecessary computations and DOM updates.