import type { AuthorityProvider } from "./provider.js";
/**
 * Authority from a pre-processed Common Crawl host-webgraph table
 * (registrable domain -> harmonic-centrality rank normalized to 0–100).
 * Owned/permissive data (CC license; attribution courtesy). The table is built
 * offline (gated); this provider is a pure lookup. Empty table -> null.
 */
export declare class CommonCrawlProvider implements AuthorityProvider {
    private readonly table;
    constructor(table: ReadonlyMap<string, number>);
    authorityFor(domain: string): Promise<number | null>;
}
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