diff --git a/src/lib/services/catalog-audit.ts b/src/lib/services/catalog-audit.ts
index 99e2a751..8707823b 100644
--- a/src/lib/services/catalog-audit.ts
+++ b/src/lib/services/catalog-audit.ts
@@ -602,6 +602,7 @@ export async function runCatalogAudit(
 
 	const sources = await listSources();
 	for (const source of sources) {
+		if (!source.furnidataUrl) continue;
 		try {
 			const entries = await fetchSourceFurnidata(source.furnidataUrl);
 			for (const entry of entries) {
diff --git a/src/lib/services/clone-import.ts b/src/lib/services/clone-import.ts
index b5aa73eb..c5fce36b 100644
--- a/src/lib/services/clone-import.ts
+++ b/src/lib/services/clone-import.ts
@@ -13,6 +13,7 @@ import {
 	ensureDirectories,
 	getOrCreateCategoryPage,
 } from "@/lib/services/furni-import";
+import { browserHeaders } from "@/lib/services/import/core/browser-headers";
 import { downloadFile } from "@/lib/services/import/core/download";
 import { parseNitroBundle } from "@/lib/services/swf/nitro-builder";
 
@@ -87,7 +88,10 @@ export async function fetchSourceFurnidata(
 ): Promise<SourceFurni[]> {
 	const hit = cache.get(url);
 	if (hit && now && now - hit.ts < TTL) return hit.list;
-	const res = await fetch(url, { signal: AbortSignal.timeout(30000) });
+	const res = await fetch(url, {
+		signal: AbortSignal.timeout(30000),
+		headers: browserHeaders(),
+	});
 	if (!res.ok) throw new Error(`furnidata fetch failed: ${res.status} ${url}`);
 	let list: SourceFurni[];
 	try {
diff --git a/src/lib/services/clone-sources.ts b/src/lib/services/clone-sources.ts
index b37be36b..d07338ed 100644
--- a/src/lib/services/clone-sources.ts
+++ b/src/lib/services/clone-sources.ts
@@ -11,47 +11,50 @@ export interface CloneSource {
 
 const KEY = "clone_sources";
 
-export const DEFAULT_ICON_SOURCES: CloneSource[] = [
+/**
+ * Verified working sources (checked Aug 2026). Used as the default list and
+ * as the fallback when the `clone_sources` site setting is empty.
+ */
+export const DEFAULT_SOURCES: CloneSource[] = [
 	{
-		id: "default-habboassets",
-		name: "HabboAssets",
-		furnidataUrl: "",
+		id: "default-habbo",
+		name: "Habbo",
+		furnidataUrl:
+			"https://raw.githubusercontent.com/Izzxt/habbo-resource/master/gamedata/furnidata.json",
 		nitroBaseUrl: "",
-		iconBaseUrl: "https://www.habboassets.com/assets/furniture",
+		iconBaseUrl: "",
 	},
-	{
-		id: "default-hubbly",
-		name: "Hubbly",
-		furnidataUrl: "",
-		nitroBaseUrl: "",
-		iconBaseUrl: "https://hubbly.pw/swf/dcr/hof_furni/icons",
-	},
-	{
-		id: "default-leet",
-		name: "Leet",
-		furnidataUrl: "",
-		nitroBaseUrl: "",
-		iconBaseUrl: "https://images.leet.city/library/hof_furni/icons",
-	},
-];
-
-export const DEFAULT_NITRO_SOURCES: CloneSource[] = [
 	{
 		id: "default-wibbo",
 		name: "Wibbo",
-		furnidataUrl: "",
+		furnidataUrl: "https://assets.wibbo.org/gamedata/FurnitureData.json",
 		nitroBaseUrl: "https://assets.wibbo.org/bundled/furniture",
+		iconBaseUrl: "https://assets.wibbo.org/icons",
+	},
+	{
+		id: "default-hubba",
+		name: "Hubba.cc",
+		furnidataUrl: "https://nitro.hubba.cc/gamedata/FurnitureData.json",
+		nitroBaseUrl: "https://nitro.hubba.cc/bundled/furniture",
 		iconBaseUrl: "",
 	},
 ];
 
+export const DEFAULT_ICON_SOURCES: CloneSource[] = DEFAULT_SOURCES.filter(
+	(s) => s.iconBaseUrl,
+);
+
+export const DEFAULT_NITRO_SOURCES: CloneSource[] = DEFAULT_SOURCES.filter(
+	(s) => s.nitroBaseUrl,
+);
+
 export async function listSources(): Promise<CloneSource[]> {
 	const raw = (await siteSettings.get(KEY, "[]")) ?? "[]";
 	try {
 		const arr = JSON.parse(raw);
-		return Array.isArray(arr) ? arr : [];
+		return Array.isArray(arr) && arr.length > 0 ? arr : DEFAULT_SOURCES;
 	} catch {
-		return [];
+		return DEFAULT_SOURCES;
 	}
 }
 
diff --git a/src/lib/services/habbo-furnidata-cache.test.ts b/src/lib/services/habbo-furnidata-cache.test.ts
index fe6e254d..56d9ff25 100644
--- a/src/lib/services/habbo-furnidata-cache.test.ts
+++ b/src/lib/services/habbo-furnidata-cache.test.ts
@@ -72,7 +72,11 @@ describe("official Habbo furnidata cache", () => {
 		expect(fetchMock).toHaveBeenNthCalledWith(
 			2,
 			"https://www.habbo.nl/gamedata/furnidata_json/1",
-			expect.objectContaining({ headers: { Accept: "application/json" } }),
+			expect.objectContaining({
+				headers: expect.objectContaining({
+					Accept: expect.stringContaining("application/json"),
+				}),
+			}),
 		);
 	});
 });
diff --git a/src/lib/services/habbo-furnidata-cache.ts b/src/lib/services/habbo-furnidata-cache.ts
index 065b0ed5..b4e5f11c 100644
--- a/src/lib/services/habbo-furnidata-cache.ts
+++ b/src/lib/services/habbo-furnidata-cache.ts
@@ -11,6 +11,7 @@ import {
 } from "@/lib/habbo-gamedata-hotel";
 import { logger } from "@/lib/logger";
 import { getHabboGamedataHotel } from "@/lib/services/habbo-gamedata-hotel";
+import { browserHeaders } from "@/lib/services/import/core/browser-headers";
 import type { OfficialHabboFurniEntry } from "@/types/furni";
 
 const CACHE_TTL = 30 * 60 * 1000; // 30 minutes
@@ -42,7 +43,7 @@ export async function getOfficialHabboFurnidata(): Promise<
 			console.debug(`[habbo-furnidata] Fetching furnidata from ${url}...`);
 			const res = await fetch(url, {
 				signal: AbortSignal.timeout(20000),
-				headers: { Accept: "application/json" },
+				headers: browserHeaders(),
 			});
 
 			if (!res.ok) {
diff --git a/src/lib/services/import/core/browser-headers.ts b/src/lib/services/import/core/browser-headers.ts
new file mode 100644
index 00000000..1a1013b2
--- /dev/null
+++ b/src/lib/services/import/core/browser-headers.ts
@@ -0,0 +1,49 @@
+export type BrowserFetchDest =
+	| "document"
+	| "image"
+	| "script"
+	| "style"
+	| "empty";
+
+const CHROME_UA =
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36";
+
+const SEC_CH_UA =
+	'"Google Chrome";v="125", "Chromium";v="125", "Not.A/Brand";v="24"';
+
+/**
+ * Realistic browser request headers so CDNs (Cloudflare, etc.) treat the
+ * server-side fetches as a normal browser instead of a bot/curl and block us.
+ */
+export function browserHeaders(
+	dest: BrowserFetchDest = "empty",
+	extra: Record<string, string> = {},
+): Record<string, string> {
+	const accept =
+		dest === "document"
+			? "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8"
+			: dest === "image"
+				? "image/avif,image/webp,image/apng,image/png,image/svg+xml,image/*;q=0.8,*/*;q=0.5"
+				: dest === "script"
+					? "*/*"
+					: "application/json,text/plain,*/*;q=0.9";
+
+	const headers: Record<string, string> = {
+		"User-Agent": CHROME_UA,
+		"sec-ch-ua": SEC_CH_UA,
+		"sec-ch-ua-mobile": "?0",
+		"sec-ch-ua-platform": '"Windows"',
+		Accept: accept,
+		"Accept-Language": "en-US,en;q=0.9",
+		"Sec-Fetch-Site": "cross-site",
+		"Sec-Fetch-Mode":
+			dest === "document" ? "navigate" : dest === "image" ? "no-cors" : "cors",
+		"Sec-Fetch-Dest": dest,
+		"Cache-Control": "no-cache",
+		Pragma: "no-cache",
+	};
+
+	if (dest === "document") headers["Upgrade-Insecure-Requests"] = "1";
+
+	return { ...headers, ...extra };
+}
diff --git a/src/lib/services/import/core/download.ts b/src/lib/services/import/core/download.ts
index 38573968..e6987b28 100644
--- a/src/lib/services/import/core/download.ts
+++ b/src/lib/services/import/core/download.ts
@@ -1,5 +1,7 @@
 import { promises as fs } from "node:fs";
 
+import { browserHeaders } from "./browser-headers";
+
 export function validateSwfBytes(buffer: Buffer): boolean {
 	if (buffer.length < 8) return false;
 	const sig = buffer.toString("ascii", 0, 3);
@@ -31,11 +33,9 @@ export async function downloadFile(
 			}
 			const res = await fetch(url, {
 				signal: AbortSignal.timeout(15000),
-				headers: {
-					"User-Agent":
-						"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0 Safari/537.36",
+				headers: browserHeaders("image", {
 					Accept: "image/png,image/*,*/*;q=0.8",
-				},
+				}),
 			});
 			if (!res.ok) {
 				const deterministic =
diff --git a/src/lib/services/import/core/gordon.ts b/src/lib/services/import/core/gordon.ts
index 28d44ebb..834a304c 100644
--- a/src/lib/services/import/core/gordon.ts
+++ b/src/lib/services/import/core/gordon.ts
@@ -1,3 +1,5 @@
+import { browserHeaders } from "./browser-headers";
+
 const EXTERNAL_VARIABLES_URL =
 	"https://www.habbo.com/gamedata/external_variables/1";
 const CACHE_TTL = 30 * 60 * 1000;
@@ -14,6 +16,7 @@ export async function resolveGordonBuildUrl(): Promise<string> {
 	if (gordonCache && now - gordonCache.ts < CACHE_TTL) return gordonCache.url;
 	const res = await fetch(EXTERNAL_VARIABLES_URL, {
 		signal: AbortSignal.timeout(20000),
+		headers: browserHeaders("document"),
 	});
 	if (!res.ok)
 		throw new Error(`external_variables fetch failed: ${res.status}`);