import type { DnsRecord } from "./types.js";
export declare const normalizeDomain: (input: string) => string;
export declare const normalizeName: (input: string) => string;
export declare const normalizeHost: (input: string) => string;
export declare const recordComparableValue: (record: DnsRecord) => string;
export declare const recordFingerprint: (record: DnsRecord, includeTtl: boolean) => string;
export declare const extractComparableFields: (record: DnsRecord) => Record<string, unknown>;
export declare const summarizeByType: (records: DnsRecord[]) => Record<string, number>;
export declare const isLikelyVercelRecord: (record: DnsRecord) => boolean;