diff --git a/e2e/visual.spec.ts b/e2e/visual.spec.ts
index f20fd54..9677bca 100644
--- a/e2e/visual.spec.ts
+++ b/e2e/visual.spec.ts
@@ -1,7 +1,9 @@
 import { test, expect } from '@playwright/test';
+import { pages } from "./pages.ts";
 
-test('example test', async ({ page }) => {
-  await page.goto('http://localhost:8081/blog/02_compiler_parsing/index.html');
-  await expect(page).toHaveScreenshot({ fullPage: true });
-});
-
+for (const pageUrl of pages) {
+    test(`visual regression for ${pageUrl}`, async ({ page }) => {
+      await page.goto(pageUrl);
+      await expect(page).toHaveScreenshot({ fullPage: true });
+    });
+}
diff --git a/functions.bash b/functions.bash
index 796171f..f23d297 100644
--- a/functions.bash
+++ b/functions.bash
@@ -1,3 +1,8 @@
 function cleanurls { for result in $(find . -name "result-*"); do; (cd $result; python3 ../chatgpt-fix-root-URLs.py); done; }
-function htmls { find -s result-$1 -name "*.html" | sed "s|^result-$1/||"; }
+function htmls { find -s result-$1/blog -name "*.html" | sed "s|^result-$1/|http://localhost:8081/|" | awk 'BEGIN { print "export const pages = [" } { printf("  \"%s\",\n", $0); } END { print "]" }'; }
 function commonhtmls { comm -12 <(htmls $1) <(htmls $2); }
+function compare {
+    commonhtmls $1 $2 > e2e/pages.ts;
+    # (cd result-$1 && python -m http.server 8081 & SERVER_PID=$! && trap "kill $SERVER_PID" EXIT && sleep 1 && cd .. && npx playwright test);
+    (cd result-$2 && python -m http.server 8081 & SERVER_PID=$! && trap "kill $SERVER_PID" EXIT && sleep 1 && cd .. && npx playwright test);
+}
diff --git a/playwright.config.ts b/playwright.config.ts
index efd9b88..30bb96d 100644
--- a/playwright.config.ts
+++ b/playwright.config.ts
@@ -14,13 +14,13 @@ import { defineConfig, devices } from '@playwright/test';
 export default defineConfig({
   testDir: './e2e',
   /* Run tests in files in parallel */
-  fullyParallel: true,
+  fullyParallel: false,
   /* Fail the build on CI if you accidentally left test.only in the source code. */
   forbidOnly: !!process.env.CI,
   /* Retry on CI only */
-  retries: process.env.CI ? 2 : 0,
+  retries: process.env.CI ? 2 : 2,
   /* Opt out of parallel tests on CI. */
-  workers: process.env.CI ? 1 : undefined,
+  workers: process.env.CI ? 1 : 1,
   /* Reporter to use. See https://playwright.dev/docs/test-reporters */
   reporter: 'html',
   /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */
@@ -34,10 +34,10 @@ export default defineConfig({
 
   /* Configure projects for major browsers */
   projects: [
-    {
-      name: 'chromium',
-      use: { ...devices['Desktop Chrome'] },
-    },
+    // {
+    //   name: 'chromium',
+    //   use: { ...devices['Desktop Chrome'] },
+    // },
 
     {
       name: 'firefox',