diff --git a/src/Cdn/Certificates/Provider/Fastly.php b/src/Cdn/Certificates/Provider/Fastly.php
index c55e6f5..3deb7fd 100644
--- a/src/Cdn/Certificates/Provider/Fastly.php
+++ b/src/Cdn/Certificates/Provider/Fastly.php
@@ -115,7 +115,23 @@ public function getCertificateStatus(string $domain, ?string $domainType): strin
 
     public function isRenewRequired(string $domain, ?string $domainType): bool
     {
-        return $this->tls->isRenewRequired(Domain::validate($domain), $domainType);
+        $domain = Domain::validate($domain);
+        $domainInfo = $this->findDomain($domain);
+
+        if ($domainInfo === null) {
+            return true;
+        }
+
+        $serviceId = $domainInfo['service_id'] ?? null;
+        if (!\is_string($serviceId) || $serviceId === '') {
+            return false;
+        }
+
+        if ($serviceId !== $this->serviceId) {
+            return true;
+        }
+
+        return $this->tls->isRenewRequired($domain, $domainType);
     }
 
     public function deleteCertificate(string $domain, ?string $domainType = null): void
diff --git a/tests/Cdn/Certificates/Provider/FastlyTest.php b/tests/Cdn/Certificates/Provider/FastlyTest.php
index edc7d6f..ecbb0d6 100644
--- a/tests/Cdn/Certificates/Provider/FastlyTest.php
+++ b/tests/Cdn/Certificates/Provider/FastlyTest.php
@@ -103,6 +103,46 @@ public function testTlsFailureStopsBeforeVersionlessDomainReassignment(): void
         $this->assertStringStartsWith('https://api.fastly.com/tls/subscriptions?', $client->calls[1]['url']);
     }
 
+    public function testRenewIsRequiredWhenDomainBelongsToAnotherService(): void
+    {
+        $client = new TestClient([
+            $this->json('{"data":[{"id":"domain_1","fqdn":"example.com","service_id":"old_service"}]}'),
+        ]);
+
+        $renewRequired = (new Fastly('token', 'new_service', client: $client))
+            ->isRenewRequired('example.com', null);
+
+        $this->assertTrue($renewRequired);
+        $this->assertCount(1, $client->calls);
+    }
+
+    public function testRenewIsNotRequiredForClassicDomain(): void
+    {
+        $client = new TestClient([
+            $this->json('{"data":[{"id":"domain_1","fqdn":"example.com"}]}'),
+        ]);
+
+        $renewRequired = (new Fastly('token', 'service_1', client: $client))
+            ->isRenewRequired('example.com', null);
+
+        $this->assertFalse($renewRequired);
+        $this->assertCount(1, $client->calls);
+    }
+
+    public function testRenewDelegatesToTlsWhenDomainBelongsToService(): void
+    {
+        $client = new TestClient([
+            $this->json('{"data":[{"id":"domain_1","fqdn":"example.com","service_id":"service_1"}]}'),
+            $this->json('{"data":[{"id":"sub_1","attributes":{"state":"issued"}}]}'),
+        ]);
+
+        $renewRequired = (new Fastly('token', 'service_1', client: $client))
+            ->isRenewRequired('example.com', null);
+
+        $this->assertFalse($renewRequired);
+        $this->assertCount(2, $client->calls);
+    }
+
     public function testDeleteRemovesVersionlessSubscriptionAndDomain(): void
     {
         $client = new TestClient([