import type { LinkValidatorConfig } from './config';
export interface LinkCheckResult {
    exists: boolean;
    status: number;
    url: string;
}
type Opts = LinkValidatorConfig;
type WithDetailsConfig = Opts & {
    details: true;
};
/**
 * Checks if a URL responds on the network. Returns true when a response is received.
 * Returns false for bad URLs, timeouts, and network errors.
 * Throws only if `link` is not a string or if a config field has the wrong type.
 *
 * If `config.details` is true, you get an object with `exists`, `status`, and `url`.
 * If `details` is false or missing, you get a boolean like before.
 *
 * @param link - The URL string to check.
 * @param config - Optional settings. See `LinkValidatorConfig`.
 * @returns A promise with true or false, or with a result object when `details` is true.
 *
 * @example
 * await linkExists('https://example.com');
 *
 * @example
 * await linkExists('example.com', { ignoreProtocol: true });
 *
 * @example
 * await linkExists('https://example.com', { details: true });
 */
export declare function linkExists(link: string, config?: Opts): Promise<boolean>;
export declare function linkExists(link: string, config: WithDetailsConfig): Promise<LinkCheckResult>;
export {};