diff --git a/VERSION b/VERSION
index 3eba9bd..36a5f6b 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.3.42
+1.3.43
diff --git a/app/Livewire/Admin/CustomerDetail.php b/app/Livewire/Admin/CustomerDetail.php
index 76df2d5..a43cd40 100644
--- a/app/Livewire/Admin/CustomerDetail.php
+++ b/app/Livewire/Admin/CustomerDetail.php
@@ -50,7 +50,17 @@ class CustomerDetail extends Component
 
     public Customer $customer;
 
-    #[Url(except: 'overview')]
+    /**
+     * Which tab is open, in the address bar.
+     *
+     * `history: true`, so each tab is a step the back button can take — and no
+     * `except`, so the parameter is there from the first render rather than
+     * appearing only once somebody leaves the default tab. Hiding it on the
+     * default read as "the tab is not in the URL", which is exactly how it was
+     * reported: a link to this page could not say which tab it meant unless the
+     * tab happened not to be the first one.
+     */
+    #[Url(history: true)]
     public string $tab = 'overview';
 
     // ---- Writing to them ----
diff --git a/app/Livewire/Admin/Integrations.php b/app/Livewire/Admin/Integrations.php
index a9fbcea..bd0f8e7 100644
--- a/app/Livewire/Admin/Integrations.php
+++ b/app/Livewire/Admin/Integrations.php
@@ -76,7 +76,17 @@ class Integrations extends Component
      */
     public const TABS = ['services', 'platform', 'env'];
 
-    #[Url(except: 'services')]
+    /**
+     * Which tab is open, in the address bar.
+     *
+     * `history: true`, so each tab is a step the back button can take — and no
+     * `except`, so the parameter is there from the first render rather than
+     * appearing only once somebody leaves the default tab. Hiding it on the
+     * default read as "the tab is not in the URL", which is exactly how it was
+     * reported: a link to this page could not say which tab it meant unless the
+     * tab happened not to be the first one.
+     */
+    #[Url(history: true)]
     public string $tab = 'services';
 
     use ConfirmsPassword {
diff --git a/app/Livewire/Admin/Settings.php b/app/Livewire/Admin/Settings.php
index 297a8f7..0a369d5 100644
--- a/app/Livewire/Admin/Settings.php
+++ b/app/Livewire/Admin/Settings.php
@@ -64,7 +64,17 @@ class Settings extends Component
      * needs no parameter, and a query string that appears the moment a page
      * loads makes every link to it look different from the one in the menu.
      */
-    #[Url(except: 'installation')]
+    /**
+     * Which tab is open, in the address bar.
+     *
+     * `history: true`, so each tab is a step the back button can take — and no
+     * `except`, so the parameter is there from the first render rather than
+     * appearing only once somebody leaves the default tab. Hiding it on the
+     * default read as "the tab is not in the URL", which is exactly how it was
+     * reported: a link to this page could not say which tab it meant unless the
+     * tab happened not to be the first one.
+     */
+    #[Url(history: true)]
     public string $tab = 'installation';
 
     /** This page changes the signed-in OPERATOR's password, never a portal one. */
diff --git a/tests/Feature/Admin/CustomerDetailTabsTest.php b/tests/Feature/Admin/CustomerDetailTabsTest.php
index 33e3748..2b5b3f1 100644
--- a/tests/Feature/Admin/CustomerDetailTabsTest.php
+++ b/tests/Feature/Admin/CustomerDetailTabsTest.php
@@ -34,7 +34,7 @@ beforeEach(function () {
     ]);
 });
 
-it('opens on the details, and keeps that tab out of the address bar', function () {
+it('opens on the details', function () {
     Livewire::actingAs(operator('Owner'), 'operator')
         ->test(CustomerDetail::class, ['uuid' => $this->customer->uuid])
         ->assertSet('tab', 'overview')
diff --git a/tests/Feature/Admin/SettingsTabsTest.php b/tests/Feature/Admin/SettingsTabsTest.php
index e876cc7..b1809e3 100644
--- a/tests/Feature/Admin/SettingsTabsTest.php
+++ b/tests/Feature/Admin/SettingsTabsTest.php
@@ -13,7 +13,7 @@ use Livewire\Livewire;
  * refreshes itself while an update runs, so a tab kept only in the component
  * would drop them back to the first one mid-deployment.
  */
-it('opens the installation tab by default and keeps it out of the address bar', function () {
+it('opens the installation tab by default', function () {
     Livewire::actingAs(operator('Owner'), 'operator')
         ->test(Settings::class)
         ->assertSet('tab', 'installation')
@@ -133,3 +133,34 @@ it('tabs the integrations page the same way, and keeps the raw file to the Owner
         ->assertSet('tab', 'services')
         ->assertViewHas('tabs', fn (array $tabs) => ! in_array('env', $tabs, true));
 });
+
+it('puts the open tab in the address bar from the first render, on every tabbed page', function () {
+    // Reported as "die Tabs fehlen in der Query beim Kunden". The binding was
+    // there, but `except` hid the parameter while the default tab was open — so
+    // a link to the page could not say which tab it meant unless the tab
+    // happened not to be the first one, and the address bar looked like the
+    // feature was missing.
+    //
+    // Asserted against the rendered page rather than the component: the
+    // parameter is written by Livewire's JS from the `url` memo in the snapshot,
+    // so the memo IS the behaviour.
+    $customer = App\Models\Customer::factory()->create();
+
+    $pages = [
+        route('admin.settings'),
+        route('admin.integrations'),
+        route('admin.customer', $customer->uuid),
+    ];
+
+    foreach ($pages as $url) {
+        $html = html_entity_decode(
+            (string) $this->actingAs(operator('Owner'), 'operator')->get($url)->getContent()
+        );
+
+        expect($html)->toContain('"url":{"tab":')
+            // No `except`: shown even on the default tab.
+            ->and($html)->toMatch('/"tab":\{[^}]*"except":null/')
+            // push, not replace: each tab is a step the back button can take.
+            ->and($html)->toMatch('/"tab":\{[^}]*"use":"push"/');
+    }
+});