diff --git a/.changeset/empty-garlics-lead.md b/.changeset/empty-garlics-lead.md
new file mode 100644
index 00000000..81f3c74a
--- /dev/null
+++ b/.changeset/empty-garlics-lead.md
@@ -0,0 +1,5 @@
+---
+"@opennextjs/cloudflare": patch
+---
+
+Fix missing SQL parameter bindings in D1NextModeTagCache.getLastRevalidated()
diff --git a/packages/cloudflare/src/api/overrides/tag-cache/d1-next-tag-cache.spec.ts b/packages/cloudflare/src/api/overrides/tag-cache/d1-next-tag-cache.spec.ts
new file mode 100644
index 00000000..f70be6dd
--- /dev/null
+++ b/packages/cloudflare/src/api/overrides/tag-cache/d1-next-tag-cache.spec.ts
@@ -0,0 +1,343 @@
+/**
+ * Author: Copilot (Claude Sonnet 4)
+ */
+import { error } from "@opennextjs/aws/adapters/logger.js";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+import { getCloudflareContext } from "../../cloudflare-context.js";
+import { debugCache, FALLBACK_BUILD_ID, purgeCacheByTags } from "../internal.js";
+import { BINDING_NAME, D1NextModeTagCache, NAME } from "./d1-next-tag-cache.js";
+
+// Mock dependencies
+vi.mock("@opennextjs/aws/adapters/logger.js", () => ({
+	error: vi.fn(),
+}));
+
+vi.mock("../../cloudflare-context.js", () => ({
+	getCloudflareContext: vi.fn(),
+}));
+
+vi.mock("../internal.js", () => ({
+	debugCache: vi.fn(),
+	FALLBACK_BUILD_ID: "fallback-build-id",
+	purgeCacheByTags: vi.fn(),
+}));
+
+describe("D1NextModeTagCache", () => {
+	let tagCache: D1NextModeTagCache;
+	let mockDb: {
+		prepare: ReturnType<typeof vi.fn>;
+		batch: ReturnType<typeof vi.fn>;
+	};
+	let mockPrepare: ReturnType<typeof vi.fn>;
+	let mockBind: ReturnType<typeof vi.fn>;
+	let mockRun: ReturnType<typeof vi.fn>;
+	let mockRaw: ReturnType<typeof vi.fn>;
+	let mockBatch: ReturnType<typeof vi.fn>;
+
+	beforeEach(() => {
+		vi.clearAllMocks();
+
+		// Setup mock database
+		mockRun = vi.fn();
+		mockRaw = vi.fn();
+		mockBind = vi.fn().mockReturnThis();
+		mockPrepare = vi.fn().mockReturnValue({
+			bind: mockBind,
+			run: mockRun,
+			raw: mockRaw,
+		});
+		mockBatch = vi.fn();
+
+		mockDb = {
+			prepare: mockPrepare,
+			batch: mockBatch,
+		};
+
+		// Setup cloudflare context mock
+		vi.mocked(getCloudflareContext).mockReturnValue({
+			env: {
+				[BINDING_NAME]: mockDb,
+			},
+		} as ReturnType<typeof getCloudflareContext>);
+
+		// Reset global config
+		(globalThis as { openNextConfig?: { dangerous?: { disableTagCache?: boolean } } }).openNextConfig = {
+			dangerous: {
+				disableTagCache: false,
+			},
+		};
+
+		// Reset environment variables
+		vi.unstubAllEnvs();
+
+		tagCache = new D1NextModeTagCache();
+	});
+
+	describe("constructor and properties", () => {
+		it("should have correct mode and name", () => {
+			expect(tagCache.mode).toBe("nextMode");
+			expect(tagCache.name).toBe(NAME);
+		});
+	});
+
+	describe("getLastRevalidated", () => {
+		it("should return 0 when cache is disabled", async () => {
+			(
+				globalThis as { openNextConfig?: { dangerous?: { disableTagCache?: boolean } } }
+			).openNextConfig!.dangerous!.disableTagCache = true;
+
+			const result = await tagCache.getLastRevalidated(["tag1", "tag2"]);
+
+			expect(result).toBe(0);
+			expect(mockPrepare).not.toHaveBeenCalled();
+		});
+
+		it("should return 0 when no database is available", async () => {
+			vi.mocked(getCloudflareContext).mockReturnValue({
+				env: {},
+			} as ReturnType<typeof getCloudflareContext>);
+
+			const result = await tagCache.getLastRevalidated(["tag1", "tag2"]);
+
+			expect(result).toBe(0);
+			expect(debugCache).toHaveBeenCalledWith("No D1 database found");
+		});
+
+		it("should return the maximum revalidation time for given tags", async () => {
+			const mockTime = 1234567890;
+			mockRun.mockResolvedValue({
+				results: [{ time: mockTime }],
+			});
+
+			const tags = ["tag1", "tag2"];
+			const result = await tagCache.getLastRevalidated(tags);
+
+			expect(result).toBe(mockTime);
+			expect(mockPrepare).toHaveBeenCalledWith(
+				"SELECT MAX(revalidatedAt) AS time FROM revalidations WHERE tag IN (?, ?)"
+			);
+			expect(mockBind).toHaveBeenCalledWith(`${FALLBACK_BUILD_ID}/tag1`, `${FALLBACK_BUILD_ID}/tag2`);
+		});
+
+		it("should return 0 when no results are found", async () => {
+			mockRun.mockResolvedValue({
+				results: [],
+			});
+
+			const result = await tagCache.getLastRevalidated(["tag1"]);
+
+			expect(result).toBe(0);
+		});
+
+		it("should return 0 when database query throws an error", async () => {
+			const mockError = new Error("Database error");
+			mockRun.mockRejectedValue(mockError);
+
+			const result = await tagCache.getLastRevalidated(["tag1"]);
+
+			expect(result).toBe(0);
+			expect(error).toHaveBeenCalledWith(mockError);
+		});
+
+		it("should use custom build ID when NEXT_BUILD_ID is set", async () => {
+			const customBuildId = "custom-build-id";
+			vi.stubEnv("NEXT_BUILD_ID", customBuildId);
+
+			mockRun.mockResolvedValue({
+				results: [{ time: 123 }],
+			});
+
+			await tagCache.getLastRevalidated(["tag1"]);
+
+			expect(mockBind).toHaveBeenCalledWith(`${customBuildId}/tag1`);
+		});
+	});
+
+	describe("hasBeenRevalidated", () => {
+		it("should return false when cache is disabled", async () => {
+			(
+				globalThis as { openNextConfig?: { dangerous?: { disableTagCache?: boolean } } }
+			).openNextConfig!.dangerous!.disableTagCache = true;
+
+			const result = await tagCache.hasBeenRevalidated(["tag1"], 1000);
+
+			expect(result).toBe(false);
+			expect(mockPrepare).not.toHaveBeenCalled();
+		});
+
+		it("should return false when no database is available", async () => {
+			vi.mocked(getCloudflareContext).mockReturnValue({
+				env: {},
+			} as ReturnType<typeof getCloudflareContext>);
+
+			const result = await tagCache.hasBeenRevalidated(["tag1"], 1000);
+
+			expect(result).toBe(false);
+		});
+
+		it("should return true when tags have been revalidated after lastModified", async () => {
+			mockRaw.mockResolvedValue([{ "1": 1 }]); // Non-empty result
+
+			const tags = ["tag1", "tag2"];
+			const lastModified = 1000;
+			const result = await tagCache.hasBeenRevalidated(tags, lastModified);
+
+			expect(result).toBe(true);
+			expect(mockPrepare).toHaveBeenCalledWith(
+				"SELECT 1 FROM revalidations WHERE tag IN (?, ?) AND revalidatedAt > ? LIMIT 1"
+			);
+			expect(mockBind).toHaveBeenCalledWith(
+				`${FALLBACK_BUILD_ID}/tag1`,
+				`${FALLBACK_BUILD_ID}/tag2`,
+				lastModified
+			);
+		});
+
+		it("should return false when no tags have been revalidated", async () => {
+			mockRaw.mockResolvedValue([]); // Empty result
+
+			const result = await tagCache.hasBeenRevalidated(["tag1"], 1000);
+
+			expect(result).toBe(false);
+		});
+
+		it("should use current time as default when lastModified is not provided", async () => {
+			const currentTime = Date.now();
+			vi.spyOn(Date, "now").mockReturnValue(currentTime);
+			mockRaw.mockResolvedValue([]);
+
+			await tagCache.hasBeenRevalidated(["tag1"]);
+
+			expect(mockBind).toHaveBeenCalledWith(`${FALLBACK_BUILD_ID}/tag1`, currentTime);
+		});
+
+		it("should return false when database query throws an error", async () => {
+			const mockError = new Error("Database error");
+			mockRaw.mockRejectedValue(mockError);
+
+			const result = await tagCache.hasBeenRevalidated(["tag1"], 1000);
+
+			expect(result).toBe(false);
+			expect(error).toHaveBeenCalledWith(mockError);
+		});
+	});
+
+	describe("writeTags", () => {
+		it("should do nothing when cache is disabled", async () => {
+			(
+				globalThis as { openNextConfig?: { dangerous?: { disableTagCache?: boolean } } }
+			).openNextConfig!.dangerous!.disableTagCache = true;
+
+			await tagCache.writeTags(["tag1", "tag2"]);
+
+			expect(mockBatch).not.toHaveBeenCalled();
+			expect(purgeCacheByTags).not.toHaveBeenCalled();
+		});
+
+		it("should do nothing when no database is available", async () => {
+			vi.mocked(getCloudflareContext).mockReturnValue({
+				env: {},
+			} as ReturnType<typeof getCloudflareContext>);
+
+			await tagCache.writeTags(["tag1", "tag2"]);
+
+			expect(mockBatch).not.toHaveBeenCalled();
+			expect(purgeCacheByTags).not.toHaveBeenCalled();
+		});
+
+		it("should do nothing when tags array is empty", async () => {
+			await tagCache.writeTags([]);
+
+			expect(mockBatch).not.toHaveBeenCalled();
+			expect(purgeCacheByTags).not.toHaveBeenCalled();
+		});
+
+		it("should write tags to database and purge cache", async () => {
+			const currentTime = Date.now();
+			vi.spyOn(Date, "now").mockReturnValue(currentTime);
+
+			const tags = ["tag1", "tag2"];
+			await tagCache.writeTags(tags);
+
+			expect(mockBatch).toHaveBeenCalledWith([
+				expect.objectContaining({
+					bind: expect.any(Function),
+				}),
+				expect.objectContaining({
+					bind: expect.any(Function),
+				}),
+			]);
+
+			// Verify the prepared statements were created correctly
+			expect(mockPrepare).toHaveBeenCalledTimes(2);
+			expect(mockPrepare).toHaveBeenCalledWith(
+				"INSERT INTO revalidations (tag, revalidatedAt) VALUES (?, ?)"
+			);
+
+			expect(purgeCacheByTags).toHaveBeenCalledWith(tags);
+		});
+
+		it("should handle single tag", async () => {
+			const currentTime = Date.now();
+			vi.spyOn(Date, "now").mockReturnValue(currentTime);
+
+			await tagCache.writeTags(["single-tag"]);
+
+			expect(mockBatch).toHaveBeenCalledWith([
+				expect.objectContaining({
+					bind: expect.any(Function),
+				}),
+			]);
+
+			expect(purgeCacheByTags).toHaveBeenCalledWith(["single-tag"]);
+		});
+	});
+
+	describe("getCacheKey", () => {
+		it("should generate cache key with build ID and tag", () => {
+			const key = "test-tag";
+			const cacheKey = (tagCache as unknown as { getCacheKey: (key: string) => string }).getCacheKey(key);
+
+			expect(cacheKey).toBe(`${FALLBACK_BUILD_ID}/${key}`);
+		});
+
+		it("should use custom build ID when NEXT_BUILD_ID is set", () => {
+			const customBuildId = "custom-build-id";
+			vi.stubEnv("NEXT_BUILD_ID", customBuildId);
+
+			const key = "test-tag";
+			const cacheKey = (tagCache as unknown as { getCacheKey: (key: string) => string }).getCacheKey(key);
+
+			expect(cacheKey).toBe(`${customBuildId}/${key}`);
+		});
+
+		it("should handle double slashes by replacing them with single slash", () => {
+			vi.stubEnv("NEXT_BUILD_ID", "build//id");
+
+			const key = "test-tag";
+			const cacheKey = (tagCache as unknown as { getCacheKey: (key: string) => string }).getCacheKey(key);
+
+			expect(cacheKey).toBe("build/id/test-tag");
+		});
+	});
+
+	describe("getBuildId", () => {
+		it("should return NEXT_BUILD_ID when set", () => {
+			const customBuildId = "custom-build-id";
+			vi.stubEnv("NEXT_BUILD_ID", customBuildId);
+
+			const buildId = (tagCache as unknown as { getBuildId: () => string }).getBuildId();
+
+			expect(buildId).toBe(customBuildId);
+		});
+
+		it("should return fallback build ID when NEXT_BUILD_ID is not set", () => {
+			// Environment variables are cleared by vi.unstubAllEnvs() in beforeEach
+
+			const buildId = (tagCache as unknown as { getBuildId: () => string }).getBuildId();
+
+			expect(buildId).toBe(FALLBACK_BUILD_ID);
+		});
+	});
+});
diff --git a/packages/cloudflare/src/api/overrides/tag-cache/d1-next-tag-cache.ts b/packages/cloudflare/src/api/overrides/tag-cache/d1-next-tag-cache.ts
index 03beb66c..040032e4 100644
--- a/packages/cloudflare/src/api/overrides/tag-cache/d1-next-tag-cache.ts
+++ b/packages/cloudflare/src/api/overrides/tag-cache/d1-next-tag-cache.ts
@@ -21,6 +21,7 @@ export class D1NextModeTagCache implements NextModeTagCache {
 				.prepare(
 					`SELECT MAX(revalidatedAt) AS time FROM revalidations WHERE tag IN (${tags.map(() => "?").join(", ")})`
 				)
+				.bind(...tags.map((tag) => this.getCacheKey(tag)))
 				.run();
 
 			if (result.results.length === 0) return 0;