diff --git a/.gitignore b/.gitignore
index ae1006d..c047ee8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,7 +7,14 @@ package
 .vscode
 .env.local
 .env.*.local
-*.pem 
+
+# Playwright
+/test-results
+/playwright-report
+/blob-report
+/playwright/.cache
+
+*.pem
 *.pub
 *.sec
 
diff --git a/.prettierignore b/.prettierignore
index 8dd6d8c..2e053a6 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -7,6 +7,8 @@ build/
 .svelte-kit/
 dist/
 node_modules/
+test-results/
+playwright-report/
 
 # Lockfiles
 package-lock.json
diff --git a/src/routes/(marketing)/+layout.svelte b/src/routes/(marketing)/+layout.svelte
index 0d74cf7..d961424 100644
--- a/src/routes/(marketing)/+layout.svelte
+++ b/src/routes/(marketing)/+layout.svelte
@@ -19,6 +19,17 @@
     })
 </script>
 
+<svelte:head>
+    <!-- Site-wide RSS autodiscovery so feed readers pointed at any marketing
+         page (including the root domain) find the blog feed. -->
+    <link
+        rel="alternate"
+        type="application/rss+xml"
+        title="PostGuard Blog RSS Feed"
+        href="/blog/rss.xml"
+    />
+</svelte:head>
+
 {#if !$isLoading}
     <a class="sr-only sr-only-focusable skip-link" href="#main-content">
         {$_('common.skipToMain', { default: 'Skip to main content' })}
diff --git a/src/routes/(marketing)/blog/+page.svelte b/src/routes/(marketing)/blog/+page.svelte
index 929410c..d216b07 100644
--- a/src/routes/(marketing)/blog/+page.svelte
+++ b/src/routes/(marketing)/blog/+page.svelte
@@ -54,15 +54,6 @@
     jsonLd={blogJsonLd}
 />
 
-<svelte:head>
-    <link
-        rel="alternate"
-        type="application/rss+xml"
-        title="PostGuard Blog RSS Feed"
-        href="/blog/rss.xml"
-    />
-</svelte:head>
-
 <div class="blog-index">
     <div class="header">
         <h1>Blog</h1>
diff --git a/src/routes/(marketing)/blog/[slug]/+page.svelte b/src/routes/(marketing)/blog/[slug]/+page.svelte
index dbf279d..25847d5 100644
--- a/src/routes/(marketing)/blog/[slug]/+page.svelte
+++ b/src/routes/(marketing)/blog/[slug]/+page.svelte
@@ -64,15 +64,6 @@
     jsonLd={articleJsonLd}
 />
 
-<svelte:head>
-    <link
-        rel="alternate"
-        type="application/rss+xml"
-        title="PostGuard Blog RSS Feed"
-        href="/blog/rss.xml"
-    />
-</svelte:head>
-
 <article class="blog-post">
     <header>
         <div class="meta">
diff --git a/tests/rss-autodiscovery.test.ts b/tests/rss-autodiscovery.test.ts
new file mode 100644
index 0000000..06ec806
--- /dev/null
+++ b/tests/rss-autodiscovery.test.ts
@@ -0,0 +1,30 @@
+import { expect, test } from '@playwright/test'
+
+const RSS_LINK =
+    'head > link[rel="alternate"][type="application/rss+xml"][href="/blog/rss.xml"]'
+
+// Regression test for the site-wide RSS autodiscovery link (issue
+// encryption4all/postguard-business#58). The autodiscovery <link> lives in the
+// marketing layout head, so every public page must advertise the blog feed
+// exactly once — including non-blog pages and blog pages, which must not carry
+// a leftover per-page duplicate.
+for (const path of ['/', '/about/', '/blog/']) {
+    test(`RSS autodiscovery link is present exactly once on ${path}`, async ({
+        page,
+    }) => {
+        await page.goto(path)
+        await expect(page.locator(RSS_LINK)).toHaveCount(1)
+    })
+}
+
+test('RSS autodiscovery link is present exactly once on a blog post page', async ({
+    page,
+}) => {
+    await page.goto('/blog/')
+    const firstPost = page.locator('a.post-card').first()
+    const href = await firstPost.getAttribute('href')
+    expect(href, 'expected at least one blog post link on /blog/').toBeTruthy()
+
+    await page.goto(href as string)
+    await expect(page.locator(RSS_LINK)).toHaveCount(1)
+})
diff --git a/tests/test.ts b/tests/test.ts
deleted file mode 100644
index 1ce937c..0000000
--- a/tests/test.ts
+++ /dev/null
@@ -1,6 +0,0 @@
-import { expect, test } from '@playwright/test'
-
-test('index page has expected h1', async ({ page }) => {
-    await page.goto('/')
-    expect(await page.textContent('h1')).toBe('Welcome to SvelteKit')
-})