diff --git a/jest.config.mjs b/jest.config.mjs
index 557dffd..cd414ef 100644
--- a/jest.config.mjs
+++ b/jest.config.mjs
@@ -13,6 +13,7 @@ export default {
   testMatch: [
     '**/tests/unit/**/*.test.js',
     '**/tests/mock/**/*.test.js',
+    '**/tests/integration/**/*.test.js',
     '**/tests/e2e/**/*.test.js'
   ],
   setupFiles: ['./tests/jest.setup.mjs']
diff --git a/tests/integration/wikipedia-download.test.js b/tests/integration/wikipedia-download.test.js
new file mode 100644
index 0000000..b910ae8
--- /dev/null
+++ b/tests/integration/wikipedia-download.test.js
@@ -0,0 +1,175 @@
+import { createBrowser } from '../../src/browser.js';
+import { convertHtmlToMarkdown } from '../../src/lib.js';
+
+const WIKIPEDIA_URL = 'https://en.wikipedia.org/wiki/Wikipedia';
+
+describe('Wikipedia Page Download Tests', () => {
+  describe('Puppeteer Engine', () => {
+    let browser;
+
+    beforeEach(async () => {
+      browser = await createBrowser('puppeteer');
+    });
+
+    afterEach(async () => {
+      if (browser) {
+        await browser.close();
+      }
+    });
+
+    it('can download Wikipedia page as HTML', async () => {
+      const page = await browser.newPage();
+      await page.setViewport({ width: 1280, height: 800 });
+      await page.goto(WIKIPEDIA_URL, { waitUntil: 'networkidle0', timeout: 60000 });
+
+      // Wait for page to fully load
+      await new Promise(resolve => setTimeout(resolve, 5000));
+
+      const html = await page.content();
+
+      // Verify HTML contains expected Wikipedia content
+      expect(html).toContain('Wikipedia');
+      expect(html).toMatch(/<html/i);
+      expect(html.length).toBeGreaterThan(1000);
+    }, 90000);
+
+    it('can download Wikipedia page as Markdown', async () => {
+      const page = await browser.newPage();
+      await page.setViewport({ width: 1280, height: 800 });
+      await page.goto(WIKIPEDIA_URL, { waitUntil: 'networkidle0', timeout: 60000 });
+
+      // Wait for page to fully load
+      await new Promise(resolve => setTimeout(resolve, 5000));
+
+      const html = await page.content();
+      const markdown = convertHtmlToMarkdown(html, WIKIPEDIA_URL);
+
+      // Verify Markdown contains expected Wikipedia content
+      expect(markdown).toContain('Wikipedia');
+      expect(markdown.length).toBeGreaterThan(500);
+      // Should not contain main HTML structure tags
+      expect(markdown).not.toMatch(/<html/i);
+      expect(markdown).not.toMatch(/<head/i);
+    }, 90000);
+
+    it('can capture Wikipedia page as screenshot (image)', async () => {
+      const page = await browser.newPage();
+      await page.setViewport({ width: 1280, height: 800 });
+      await page.goto(WIKIPEDIA_URL, { waitUntil: 'networkidle0', timeout: 60000 });
+
+      // Wait for page to fully load
+      await new Promise(resolve => setTimeout(resolve, 5000));
+
+      const screenshot = await page.screenshot({ type: 'png' });
+
+      // Verify screenshot is a valid PNG
+      expect(screenshot).toBeInstanceOf(Buffer);
+      expect(screenshot.length).toBeGreaterThan(1000);
+
+      // Verify PNG signature
+      const pngSignature = Buffer.from([0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A]);
+      expect(screenshot.slice(0, 8)).toEqual(pngSignature);
+    }, 90000);
+  });
+
+  describe('Playwright Engine', () => {
+    let browser;
+
+    beforeEach(async () => {
+      browser = await createBrowser('playwright');
+    });
+
+    afterEach(async () => {
+      if (browser) {
+        await browser.close();
+      }
+    });
+
+    it('can download Wikipedia page as HTML', async () => {
+      const page = await browser.newPage();
+      await page.setViewport({ width: 1280, height: 800 });
+      await page.goto(WIKIPEDIA_URL, { waitUntil: 'networkidle0', timeout: 60000 });
+
+      // Wait for page to fully load
+      await new Promise(resolve => setTimeout(resolve, 5000));
+
+      const html = await page.content();
+
+      // Verify HTML contains expected Wikipedia content
+      expect(html).toContain('Wikipedia');
+      expect(html).toMatch(/<html/i);
+      expect(html.length).toBeGreaterThan(1000);
+    }, 90000);
+
+    it('can download Wikipedia page as Markdown', async () => {
+      const page = await browser.newPage();
+      await page.setViewport({ width: 1280, height: 800 });
+      await page.goto(WIKIPEDIA_URL, { waitUntil: 'networkidle0', timeout: 60000 });
+
+      // Wait for page to fully load
+      await new Promise(resolve => setTimeout(resolve, 5000));
+
+      const html = await page.content();
+      const markdown = convertHtmlToMarkdown(html, WIKIPEDIA_URL);
+
+      // Verify Markdown contains expected Wikipedia content
+      expect(markdown).toContain('Wikipedia');
+      expect(markdown.length).toBeGreaterThan(500);
+      // Should not contain main HTML structure tags
+      expect(markdown).not.toMatch(/<html/i);
+      expect(markdown).not.toMatch(/<head/i);
+    }, 90000);
+
+    it('can capture Wikipedia page as screenshot (image)', async () => {
+      const page = await browser.newPage();
+      await page.setViewport({ width: 1280, height: 800 });
+      await page.goto(WIKIPEDIA_URL, { waitUntil: 'networkidle0', timeout: 60000 });
+
+      // Wait for page to fully load
+      await new Promise(resolve => setTimeout(resolve, 5000));
+
+      const screenshot = await page.screenshot({ type: 'png' });
+
+      // Verify screenshot is a valid PNG
+      expect(screenshot).toBeInstanceOf(Buffer);
+      expect(screenshot.length).toBeGreaterThan(1000);
+
+      // Verify PNG signature
+      const pngSignature = Buffer.from([0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A]);
+      expect(screenshot.slice(0, 8)).toEqual(pngSignature);
+    }, 90000);
+  });
+
+  describe('Engine Comparison', () => {
+    it('both engines can download Wikipedia content successfully', async () => {
+      const puppeteerBrowser = await createBrowser('puppeteer');
+      const playwrightBrowser = await createBrowser('playwright');
+
+      const puppeteerPage = await puppeteerBrowser.newPage();
+      const playwrightPage = await playwrightBrowser.newPage();
+
+      await puppeteerPage.setViewport({ width: 1280, height: 800 });
+      await playwrightPage.setViewport({ width: 1280, height: 800 });
+
+      await puppeteerPage.goto(WIKIPEDIA_URL, { waitUntil: 'networkidle0', timeout: 60000 });
+      await playwrightPage.goto(WIKIPEDIA_URL, { waitUntil: 'networkidle0', timeout: 60000 });
+
+      // Wait for pages to fully load
+      await new Promise(resolve => setTimeout(resolve, 5000));
+
+      const puppeteerHtml = await puppeteerPage.content();
+      const playwrightHtml = await playwrightPage.content();
+
+      // Both should contain Wikipedia content
+      expect(puppeteerHtml).toContain('Wikipedia');
+      expect(playwrightHtml).toContain('Wikipedia');
+
+      // Both should be substantial HTML
+      expect(puppeteerHtml.length).toBeGreaterThan(1000);
+      expect(playwrightHtml.length).toBeGreaterThan(1000);
+
+      await puppeteerBrowser.close();
+      await playwrightBrowser.close();
+    }, 120000);
+  });
+});