diff --git a/docs/swagger/paths/v2_domains.json b/docs/swagger/paths/v2_domains.json
index 40448016..d92677c1 100644
--- a/docs/swagger/paths/v2_domains.json
+++ b/docs/swagger/paths/v2_domains.json
@@ -4,8 +4,8 @@
         "tags": [
             "Domains"
         ],
-        "summary": "List existing domains",
-        "description": "Returns the list of all domains ever used, with a flag that tells if they are the default domain",
+        "summary": "List configured domains",
+        "description": "Returns the list of all domains that have been either used for some short URL, or have explicitly configured redirects.<br/>It also includes the domain redirects, plus the default redirects that will be used for any non-explicitly-configured one.",
         "security": [
             {
                 "ApiKey": []
diff --git a/module/Core/src/Domain/DomainService.php b/module/Core/src/Domain/DomainService.php
index 743312b6..d5e5d88c 100644
--- a/module/Core/src/Domain/DomainService.php
+++ b/module/Core/src/Domain/DomainService.php
@@ -50,7 +50,7 @@ class DomainService implements DomainServiceInterface
         /** @var DomainRepositoryInterface $repo */
         $repo = $this->em->getRepository(Domain::class);
         $groups = group(
-            $repo->findDomainsWithout(null, $apiKey), // FIXME Always called with null as first arg
+            $repo->findDomains($apiKey),
             fn (Domain $domain) => $domain->getAuthority() === $this->defaultDomain ? 'default' : 'domains',
         );
 
@@ -73,8 +73,7 @@ class DomainService implements DomainServiceInterface
 
     public function findByAuthority(string $authority, ?ApiKey $apiKey = null): ?Domain
     {
-        $repo = $this->em->getRepository(Domain::class);
-        return $repo->findOneByAuthority($authority, $apiKey);
+        return $this->em->getRepository(Domain::class)->findOneByAuthority($authority, $apiKey);
     }
 
     /**
diff --git a/module/Core/src/Domain/Repository/DomainRepository.php b/module/Core/src/Domain/Repository/DomainRepository.php
index 1741cea7..4de3ea36 100644
--- a/module/Core/src/Domain/Repository/DomainRepository.php
+++ b/module/Core/src/Domain/Repository/DomainRepository.php
@@ -8,7 +8,6 @@ use Doctrine\ORM\Query\Expr\Join;
 use Happyr\DoctrineSpecification\Repository\EntitySpecificationRepository;
 use Happyr\DoctrineSpecification\Spec;
 use Shlinkio\Shlink\Core\Domain\Spec\IsDomain;
-use Shlinkio\Shlink\Core\Domain\Spec\IsNotAuthority;
 use Shlinkio\Shlink\Core\Entity\Domain;
 use Shlinkio\Shlink\Core\Entity\ShortUrl;
 use Shlinkio\Shlink\Core\ShortUrl\Spec\BelongsToApiKey;
@@ -20,7 +19,7 @@ class DomainRepository extends EntitySpecificationRepository implements DomainRe
     /**
      * @return Domain[]
      */
-    public function findDomainsWithout(?string $excludedAuthority, ?ApiKey $apiKey = null): array
+    public function findDomains(?ApiKey $apiKey = null): array
     {
         $qb = $this->createQueryBuilder('d');
         $qb->leftJoin(ShortUrl::class, 's', Join::WITH, 's.domain = d')
@@ -31,7 +30,7 @@ class DomainRepository extends EntitySpecificationRepository implements DomainRe
            ->orHaving($qb->expr()->isNotNull('d.regular404Redirect'))
            ->orHaving($qb->expr()->isNotNull('d.invalidShortUrlRedirect'));
 
-        $specs = $this->determineExtraSpecs($excludedAuthority, $apiKey);
+        $specs = $this->determineExtraSpecs($apiKey);
         foreach ($specs as [$alias, $spec]) {
             $this->applySpecification($qb, $spec, $alias);
         }
@@ -47,7 +46,7 @@ class DomainRepository extends EntitySpecificationRepository implements DomainRe
            ->setParameter('authority', $authority)
            ->setMaxResults(1);
 
-        $specs = $this->determineExtraSpecs(null, $apiKey);
+        $specs = $this->determineExtraSpecs($apiKey);
         foreach ($specs as [$alias, $spec]) {
             $this->applySpecification($qb, $spec, $alias);
         }
@@ -55,12 +54,8 @@ class DomainRepository extends EntitySpecificationRepository implements DomainRe
         return $qb->getQuery()->getOneOrNullResult();
     }
 
-    private function determineExtraSpecs(?string $excludedAuthority, ?ApiKey $apiKey): iterable
+    private function determineExtraSpecs(?ApiKey $apiKey): iterable
     {
-        if ($excludedAuthority !== null) {
-            yield ['d', new IsNotAuthority($excludedAuthority)];
-        }
-
         // FIXME The $apiKey->spec() method cannot be used here, as it returns a single spec which assumes the
         //       ShortUrl is the root entity. Here, the Domain is the root entity.
         //       Think on a way to centralize the conditional behavior and make $apiKey->spec() more flexible.
diff --git a/module/Core/src/Domain/Repository/DomainRepositoryInterface.php b/module/Core/src/Domain/Repository/DomainRepositoryInterface.php
index 123e349d..69e74e5b 100644
--- a/module/Core/src/Domain/Repository/DomainRepositoryInterface.php
+++ b/module/Core/src/Domain/Repository/DomainRepositoryInterface.php
@@ -14,7 +14,7 @@ interface DomainRepositoryInterface extends ObjectRepository, EntitySpecificatio
     /**
      * @return Domain[]
      */
-    public function findDomainsWithout(?string $excludedAuthority, ?ApiKey $apiKey = null): array;
+    public function findDomains(?ApiKey $apiKey = null): array;
 
     public function findOneByAuthority(string $authority, ?ApiKey $apiKey = null): ?Domain;
 }
diff --git a/module/Core/src/Domain/Spec/IsNotAuthority.php b/module/Core/src/Domain/Spec/IsNotAuthority.php
deleted file mode 100644
index 0f0f0653..00000000
--- a/module/Core/src/Domain/Spec/IsNotAuthority.php
+++ /dev/null
@@ -1,22 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Shlinkio\Shlink\Core\Domain\Spec;
-
-use Happyr\DoctrineSpecification\Filter\Filter;
-use Happyr\DoctrineSpecification\Spec;
-use Happyr\DoctrineSpecification\Specification\BaseSpecification;
-
-class IsNotAuthority extends BaseSpecification
-{
-    public function __construct(private string $authority, ?string $context = null)
-    {
-        parent::__construct($context);
-    }
-
-    protected function getSpec(): Filter
-    {
-        return Spec::not(Spec::eq('authority', $this->authority));
-    }
-}
diff --git a/module/Core/test-db/Domain/Repository/DomainRepositoryTest.php b/module/Core/test-db/Domain/Repository/DomainRepositoryTest.php
index 1eaf6ea9..382e58dd 100644
--- a/module/Core/test-db/Domain/Repository/DomainRepositoryTest.php
+++ b/module/Core/test-db/Domain/Repository/DomainRepositoryTest.php
@@ -50,27 +50,7 @@ class DomainRepositoryTest extends DatabaseTestCase
 
         $this->getEntityManager()->flush();
 
-        self::assertEquals(
-            [$barDomain, $bazDomain, $detachedWithRedirects, $fooDomain],
-            $this->repo->findDomainsWithout(null),
-        );
-        self::assertEquals(
-            [$barDomain, $bazDomain, $detachedWithRedirects],
-            $this->repo->findDomainsWithout('foo.com'),
-        );
-        self::assertEquals(
-            [$bazDomain, $detachedWithRedirects, $fooDomain],
-            $this->repo->findDomainsWithout('bar.com'),
-        );
-        self::assertEquals(
-            [$barDomain, $detachedWithRedirects, $fooDomain],
-            $this->repo->findDomainsWithout('baz.com'),
-        );
-        self::assertEquals(
-            [$barDomain, $bazDomain, $fooDomain],
-            $this->repo->findDomainsWithout('detached-with-redirects.com'),
-        );
-
+        self::assertEquals([$barDomain, $bazDomain, $detachedWithRedirects, $fooDomain], $this->repo->findDomains());
         self::assertEquals($barDomain, $this->repo->findOneByAuthority('bar.com'));
         self::assertEquals($detachedWithRedirects, $this->repo->findOneByAuthority('detached-with-redirects.com'));
         self::assertNull($this->repo->findOneByAuthority('does-not-exist.com'));
@@ -121,14 +101,11 @@ class DomainRepositoryTest extends DatabaseTestCase
 
         $this->getEntityManager()->flush();
 
-        self::assertEquals([$fooDomain], $this->repo->findDomainsWithout(null, $fooDomainApiKey));
-        self::assertEquals([$barDomain], $this->repo->findDomainsWithout(null, $barDomainApiKey));
-        self::assertEquals(
-            [$detachedWithRedirects],
-            $this->repo->findDomainsWithout(null, $detachedWithRedirectsApiKey),
-        );
-        self::assertEquals([$bazDomain, $fooDomain], $this->repo->findDomainsWithout(null, $authorApiKey));
-        self::assertEquals([], $this->repo->findDomainsWithout(null, $authorAndDomainApiKey));
+        self::assertEquals([$fooDomain], $this->repo->findDomains($fooDomainApiKey));
+        self::assertEquals([$barDomain], $this->repo->findDomains($barDomainApiKey));
+        self::assertEquals([$detachedWithRedirects], $this->repo->findDomains($detachedWithRedirectsApiKey));
+        self::assertEquals([$bazDomain, $fooDomain], $this->repo->findDomains($authorApiKey));
+        self::assertEquals([], $this->repo->findDomains($authorAndDomainApiKey));
 
         self::assertEquals($fooDomain, $this->repo->findOneByAuthority('foo.com', $authorApiKey));
         self::assertNull($this->repo->findOneByAuthority('bar.com', $authorApiKey));
diff --git a/module/Core/test/Domain/DomainServiceTest.php b/module/Core/test/Domain/DomainServiceTest.php
index 71922fe3..ea3cfe02 100644
--- a/module/Core/test/Domain/DomainServiceTest.php
+++ b/module/Core/test/Domain/DomainServiceTest.php
@@ -41,7 +41,7 @@ class DomainServiceTest extends TestCase
     {
         $repo = $this->prophesize(DomainRepositoryInterface::class);
         $getRepo = $this->em->getRepository(Domain::class)->willReturn($repo->reveal());
-        $findDomains = $repo->findDomainsWithout(null, $apiKey)->willReturn($domains);
+        $findDomains = $repo->findDomains($apiKey)->willReturn($domains);
 
         $result = $this->domainService->listDomains($apiKey);