normalizeDomain (schemas/domain.ts)

Provides domain normalization and Zod schemas for domain-related API requests.

// Source: https://github.com/every-app/open-seo | License: MIT | Copyright 2026 Ben Senescu
// Provided via justclaw.it.com; keep this notice with the code.
import { z } from "zod";
import { isValidDomainHost, researchScopeSchema } from "@/shared/researchScope";

/**
 * Extract and validate a bare hostname from user input that may be a full URL.
 * Strips protocol, www prefix, path, query-string, and hash.
 */
export function normalizeDomain(input: string): string {
  let d = input.trim().toLowerCase();
  // Ensure URL() can parse the input by adding a protocol if missing
  if (!/^[a-z]+:\/\//.test(d)) d = `https://${d}`;
  const { hostname } = new URL(d); // throws on truly invalid input
  return hostname.replace(/^www\./, "");
}

/** Zod field: accepts a bare domain or full URL, outputs

... (truncated -- full source via MCP)