diff --git a/app/Services/PressRelease/PressReleaseService.php b/app/Services/PressRelease/PressReleaseService.php
index ae38bb07..c290f3c6 100644
--- a/app/Services/PressRelease/PressReleaseService.php
+++ b/app/Services/PressRelease/PressReleaseService.php
@@ -383,6 +383,11 @@ class PressReleaseService
         $previous = $pressRelease->status;
 
         $pressRelease->update(['status' => PressReleaseStatus::Archived->value]);
+        // Sichtbarkeitsregel (Roadmap 1b.1/1b.5): Ein Newsroom ist öffentlich
+        // nur mit mindestens einer veröffentlichten Meldung. Fällt die letzte
+        // weg, muss auch seine Seite sofort weg — nicht erst nach Ablauf des
+        // Seiten-Caches.
+        WebCaches::forgetPublicPages();
         $this->logStatusChange($pressRelease, $previous, PressReleaseStatus::Archived, null, 'admin');
     }
 
@@ -439,6 +444,10 @@ class PressReleaseService
             if ($previous !== $status) {
                 $this->logStatusChange($locked, $previous, $status, $reason, 'admin');
             }
+
+            if ($previous === PressReleaseStatus::Published && $status !== PressReleaseStatus::Published) {
+                WebCaches::forgetPublicPages();
+            }
         });
 
         $pressRelease->refresh();
@@ -457,6 +466,7 @@ class PressReleaseService
                 'backlink_url' => null,
                 'no_export' => true,
             ]);
+            WebCaches::forgetPublicPages();
 
             return;
         }
diff --git a/tests/Feature/Web/NewsroomPageTest.php b/tests/Feature/Web/NewsroomPageTest.php
index 0190472a..2ad945fd 100644
--- a/tests/Feature/Web/NewsroomPageTest.php
+++ b/tests/Feature/Web/NewsroomPageTest.php
@@ -1,9 +1,11 @@
 <?php
 
 use App\Enums\Portal;
+use App\Enums\PressReleaseStatus;
 use App\Models\Category;
 use App\Models\Company;
 use App\Models\PressRelease;
+use App\Services\PressRelease\PressReleaseService;
 use Illuminate\Support\Str;
 use Tests\TestCase;
 
@@ -118,6 +120,49 @@ test('the newsroom detail page returns 404 when the company has no published rel
         ->assertNotFound();
 });
 
+test('the newsroom page disappears with its last published release, cache included', function () {
+    /** @var TestCase $this */
+    // Roadmap 1b.1/1b.5: öffentlich nur mit veröffentlichter Meldung — und
+    // der Rückbau greift sofort, nicht erst nach Ablauf des Seiten-Caches.
+    $company = makeNewsroom('Einmalig AG');
+    $release = publishForCompany($company, 'Die einzige Meldung');
+    $url = 'https://businessportal24.test/de/newsroom/'.$company->slug;
+
+    $this->get($url)->assertOk();
+    $this->get('https://businessportal24.test/de/newsrooms')->assertSeeText('Einmalig AG');
+
+    app(PressReleaseService::class)->archive($release);
+
+    $this->get($url)->assertNotFound();
+    $this->get('https://businessportal24.test/de/newsrooms')->assertDontSeeText('Einmalig AG');
+});
+
+test('an admin status change away from published takes the newsroom page down', function () {
+    /** @var TestCase $this */
+    $company = makeNewsroom('Rückzug GmbH');
+    $release = publishForCompany($company, 'Zurückgezogen');
+    $url = 'https://businessportal24.test/de/newsroom/'.$company->slug;
+
+    $this->get($url)->assertOk();
+
+    app(PressReleaseService::class)->changeStatusFromAdmin($release, PressReleaseStatus::Draft);
+
+    $this->get($url)->assertNotFound();
+});
+
+test('deleting the last published release from admin takes the newsroom page down', function () {
+    /** @var TestCase $this */
+    $company = makeNewsroom('Gelöscht KG');
+    $release = publishForCompany($company, 'Wird entfernt');
+    $url = 'https://businessportal24.test/de/newsroom/'.$company->slug;
+
+    $this->get($url)->assertOk();
+
+    app(PressReleaseService::class)->deleteFromAdmin($release);
+
+    $this->get($url)->assertNotFound();
+});
+
 test('the newsrooms pages are available per edition and portal', function () {
     /** @var TestCase $this */
     $this->get('https://businessportal24.test/en/newsrooms')->assertSuccessful();