export declare const MAX_HTML_BYTES: number;
export declare function publicCitationUrl(value: unknown): URL;
export declare function isPublicAddress(address: string): boolean;
export declare function parseCitationSiteName(html: string): string | null;
interface Address {
    address: string;
    family: number;
}
export declare function resolvePublicAddress(hostname: string, resolve: (host: string) => Promise<Address[]>): Promise<Address>;
declare function requestPage(url: URL, signal: AbortSignal): Promise<{
    redirect?: string;
    html?: string;
}>;
export declare function fetchCitationSiteName(input: string, request?: typeof requestPage): Promise<string | null>;
export declare function createSiteNameCache(load?: typeof fetchCitationSiteName, now?: () => number): (input: string) => Promise<string | null>;
export {};