diff --git a/Changes b/Changes
index 7166dbde3..12f02194e 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,14 @@
 Release history for Zonemaster component Zonemaster-Backend
 
+
+v9.0.1 2022-07-08 (public fix release)
+
+ [Fixes]
+ - Corrects a bug where Zonemaster-Backend does not respect the IPv4 or
+   IPV6 setting in a custom profile (#1046, #1039)
+ - Updates the Danish translation (#1034)
+
+
 v9.0.0 2022-06-09 (public release release)
 
  [Deprecation]
diff --git a/Makefile.PL b/Makefile.PL
index 247069fda..de48397a1 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -33,7 +33,7 @@ requires
   'Starman'                     => 0,
   'String::ShellQuote'          => 0,
   'Try::Tiny'                   => 0.12,
-  'Zonemaster::Engine'          => 4.005,
+  'Zonemaster::Engine'          => 4.005001,
   'Zonemaster::LDNS'            => 2.002002,
   'Plack::Middleware::ReverseProxy' => 0,
   'Locale::TextDomain'          => 1.20,
diff --git a/lib/Zonemaster/Backend.pm b/lib/Zonemaster/Backend.pm
index a1d6443ff..ade20f5e2 100644
--- a/lib/Zonemaster/Backend.pm
+++ b/lib/Zonemaster/Backend.pm
@@ -1,6 +1,6 @@
 package Zonemaster::Backend;
 
-our $VERSION = '9.0.0';
+our $VERSION = '9.0.1';
 
 use strict;
 use warnings;
diff --git a/lib/Zonemaster/Backend/Config.pm b/lib/Zonemaster/Backend/Config.pm
index b7ab31532..fa0f0fcce 100644
--- a/lib/Zonemaster/Backend/Config.pm
+++ b/lib/Zonemaster/Backend/Config.pm
@@ -17,7 +17,7 @@ use Zonemaster::Backend::DB;
 
 Readonly my @SIG_NAME => split ' ', $Config{sig_name};
 
-=head1 STATIC METHODS
+=head1 CLASS METHODS
 
 =head2 get_default_path
 
@@ -63,6 +63,50 @@ sub get_default_path {
     return $path // croak "File not found: backend_config.ini\n";
 }
 
+=head2 load_profiles
+
+Loads and returns a set of named profiles.
+
+    my %all_profiles = (
+        $config->PUBLIC_PROFILES,
+        $config->PRIVATE_PROFILES,
+    );
+    my %profiles = %{ Zonemaster::Backend::Config->load_profiles( %all_profiles ) };
+
+Takes a hash mapping profile names to profile paths.
+An `undef` path value means the default profile.
+
+Returns a hashref mapping profile names to profile objects.
+
+The returned profiles have omitted values filled in with defaults from the
+default profile.
+
+Dies if any of the given paths cannot be read or their contents cannot be parsed
+as JSON.
+
+=cut
+
+sub load_profiles {
+    my ( $class, %profile_paths ) = @_;
+
+    my %profiles;
+    foreach my $name ( keys %profile_paths ) {
+        my $path = $profile_paths{$name};
+
+        my $full_profile = Zonemaster::Engine::Profile->default;
+        if ( defined $path ) {
+            my $json = eval { read_file( $path, err_mode => 'croak' ) }    #
+              // die "Error loading profile '$name': $@";
+            my $named_profile = eval { Zonemaster::Engine::Profile->from_json( $json ) }    #
+              // die "Error loading profile '$name' at '$path': $@";
+            $full_profile->merge( $named_profile );
+        }
+        $profiles{$name} = $full_profile;
+    }
+
+    return \%profiles;
+}
+
 =head1 CONSTRUCTORS
 
 =head2 load_config
diff --git a/lib/Zonemaster/Backend/DB.pm b/lib/Zonemaster/Backend/DB.pm
index a2b6ecc85..1252d1c66 100644
--- a/lib/Zonemaster/Backend/DB.pm
+++ b/lib/Zonemaster/Backend/DB.pm
@@ -14,7 +14,6 @@ use Log::Any qw( $log );
 use POSIX qw( strftime );
 use Try::Tiny;
 
-use Zonemaster::Engine::Profile;
 use Zonemaster::Backend::Errors;
 
 requires qw(
@@ -612,13 +611,11 @@ sub _normalize_domain {
 sub _project_params {
     my ( $self, $params ) = @_;
 
-    my $profile = Zonemaster::Engine::Profile->effective;
-
     my %projection = ();
 
     $projection{domain}   = _normalize_domain( $$params{domain} // "" );
-    $projection{ipv4}     = $$params{ipv4}       // $profile->get( 'net.ipv4' );
-    $projection{ipv6}     = $$params{ipv6}       // $profile->get( 'net.ipv6' );
+    $projection{ipv4}     = $$params{ipv4};
+    $projection{ipv6}     = $$params{ipv6};
     $projection{profile}  = lc( $$params{profile} // "default" );
 
     my $array_ds_info = $$params{ds_info} // [];
diff --git a/lib/Zonemaster/Backend/RPCAPI.pm b/lib/Zonemaster/Backend/RPCAPI.pm
index 244de734f..6f3bf811f 100644
--- a/lib/Zonemaster/Backend/RPCAPI.pm
+++ b/lib/Zonemaster/Backend/RPCAPI.pm
@@ -23,6 +23,7 @@ use Encode;
 
 # Zonemaster Modules
 use Zonemaster::Engine;
+use Zonemaster::Engine::Profile;
 use Zonemaster::Engine::Recursor;
 use Zonemaster::Backend;
 use Zonemaster::Backend::Config;
@@ -59,6 +60,11 @@ sub new {
 
     $self->_init_db($dbtype);
 
+    $self->{_profiles} = Zonemaster::Backend::Config->load_profiles(    #
+        $self->{config}->PUBLIC_PROFILES,
+        $self->{config}->PRIVATE_PROFILES,
+    );
+
     return ( $self );
 }
 
@@ -257,8 +263,13 @@ sub start_domain_test {
 
         die "No domain in parameters\n" unless ( defined $params->{domain} && length($params->{domain}) );
 
-        $params->{priority}  //= 10;
-        $params->{queue}     //= 0;
+        $params->{profile}  //= "default";
+        $params->{priority} //= 10;
+        $params->{queue}    //= 0;
+
+        my $profile = $self->{_profiles}{ $params->{profile} };
+        $params->{ipv4} //= $profile->get( "net.ipv4" );
+        $params->{ipv6} //= $profile->get( "net.ipv6" );
 
         $result = $self->{db}->create_new_test( $params->{domain}, $params, $self->{config}->ZONEMASTER_age_reuse_previous_test );
     };
@@ -514,8 +525,13 @@ sub add_batch_job {
 
     my $results;
     eval {
-        $params->{test_params}->{priority} //= 5;
-        $params->{test_params}->{queue}    //= 0;
+        $params->{test_params}{profile}  //= "default";
+        $params->{test_params}{priority} //= 5;
+        $params->{test_params}{queue}    //= 0;
+
+        my $profile = $self->{_profiles}{ $params->{test_params}{profile} };
+        $params->{test_params}{ipv4} //= $profile->get( "net.ipv4" );
+        $params->{test_params}{ipv6} //= $profile->get( "net.ipv6" );
 
         $results = $self->{db}->add_batch_job( $params );
     };
diff --git a/lib/Zonemaster/Backend/TestAgent.pm b/lib/Zonemaster/Backend/TestAgent.pm
index fcf4fedf0..514818f5e 100644
--- a/lib/Zonemaster/Backend/TestAgent.pm
+++ b/lib/Zonemaster/Backend/TestAgent.pm
@@ -40,20 +40,10 @@ sub new {
     my $dbclass = Zonemaster::Backend::DB->get_db_class( $dbtype );
     $self->{_db} = $dbclass->from_config( $config );
 
-    my %all_profiles = ( $config->PUBLIC_PROFILES, $config->PRIVATE_PROFILES );
-    foreach my $name ( keys %all_profiles ) {
-        my $path = $all_profiles{$name};
-
-        my $full_profile = Zonemaster::Engine::Profile->default;
-        if ( defined $path ) {
-            my $json = eval { read_file( $path, err_mode => 'croak' ) }    #
-              // die "Error loading profile '$name': $@";
-            my $named_profile = eval { Zonemaster::Engine::Profile->from_json( $json ) }    #
-              // die "Error loading profile '$name' at '$path': $@";
-            $full_profile->merge( $named_profile );
-        }
-        $self->{_profiles}{$name} = $full_profile;
-    }
+    $self->{_profiles} = Zonemaster::Backend::Config->load_profiles(    #
+        $config->PUBLIC_PROFILES,
+        $config->PRIVATE_PROFILES,
+    );
 
     bless( $self, $class );
     return $self;
diff --git a/share/da.po b/share/da.po
index 8ea1dd935..1f6853e63 100644
--- a/share/da.po
+++ b/share/da.po
@@ -2,8 +2,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: 1.0.0\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2021-12-07 15:34+0000\n"
-"PO-Revision-Date: 2021-10-14 11:25+0200\n"
+"POT-Creation-Date: 2022-06-08 14:31+0000\n"
+"PO-Revision-Date: 2022-06-08 14:26+0000\n"
 "Last-Translator: haarbo@dk-hostmaster.dk\n"
 "Language-Team: Zonemaster project\n"
 "Language: da\n"
@@ -11,29 +11,54 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 
+msgid "Invalid method parameter(s)."
+msgstr "Invalid metodeparametre"
+
+msgid "Missing property"
+msgstr "Manglende egenskab"
+
+msgid ""
+"Warning: Zonemaster::LDNS not compiled with IDN support, cannot handle non-"
+"ASCII names correctly."
+msgstr ""
+"Advarsel: Zonemaster::LDNS ikke kompileret med IDN-support, og kan derfor "
+"ikke håndtere ikke-ascii-navne korrekt"
+
+msgid "Invalid digest format"
+msgstr "Invalid digest-format"
+
+msgid "Algorithm must be a positive integer"
+msgstr "Algoritmen skal være et positivt heltal"
+
+msgid "Digest type must be a positive integer"
+msgstr "Digest type skal være et positivt heltal"
+
+msgid "Keytag must be a positive integer"
+msgstr "Keytag skal være et positivt heltal"
+
 msgid "Domain name required"
 msgstr "Domænenavn påkrævet"
 
+msgid "The domain name is IDNA invalid"
+msgstr "Domænenavnet er IDNA ugyldigt"
+
 msgid ""
-"The domain name is not a valid IDNA string and cannot be converted to an A-"
-"label"
+"The domain name contains non-ascii characters and IDNA support is not "
+"installed"
 msgstr ""
-"Domænenavnet er ikke en valid IDNA-streng og kan ikke konverteres til en A-label"
-
-msgid "The domain name contains non-ascii characters and IDNA is not installed"
-msgstr "Domænenavnet indeholder ikke-ascii-tegn og IDNA er ikke installeret"
+"Domænenavnet indeholder ikke-ascii-tegn og IDNA-support er ikke installeret"
 
 msgid "The domain name character(s) are not supported"
 msgstr "Domænenavnets tegn er ikke understøttet"
 
+msgid "The domain name contains consecutive dots"
+msgstr "Domænenavnet indeholder flere dots (.) efter hinanden"
+
 msgid "The domain name or label is too long"
 msgstr "Domænenavnet eller labelen er for lang"
 
-msgid "Unknown profile"
-msgstr "Ukendt profil"
-
-msgid "Invalid IP address"
-msgstr "Invalid IP-adresse"
+msgid "Invalid language tag format"
+msgstr "Invalidt sprogkode-format"
 
 msgid "Unkown language string"
 msgstr "Ukendt sprogstreng"
@@ -41,32 +66,11 @@ msgstr "Ukendt sprogstreng"
 msgid "Language string not unique"
 msgstr "Sprogstreng ikke unik"
 
-msgid "Invalid method parameter(s)."
-msgstr "Invalid metodeparametre"
-
-msgid "Missing property"
-msgstr "Manglende egenskab"
-
-msgid ""
-"Warning: Zonemaster::LDNS not compiled with libidn2, cannot handle non-ASCII "
-"names correctly."
-msgstr "Advarsel: Zonemaster::LDNS ikke kompileret med libidn2 - kan ikke "
-"håndtere ikke-ascii-navne korrekt"
-
-msgid "The domain name contains a character or characters not supported"
-msgstr "Domænenavnet indeholder et eller flere ikke understøttede tegn"
-
-msgid "Invalid digest format"
-msgstr "Invalid digest format"
-
-msgid "Algorithm must be a positive integer"
-msgstr "Algoritmen skal være et positivt heltal"
-
-msgid "Digest type must be a positive integer"
-msgstr "Digest type skal være et positivt heltal"
+msgid "Invalid IP address"
+msgstr "Invalid IP-adresse"
 
-msgid "Keytag must be a positive integer"
-msgstr "Keytag skal være et positivt heltal"
+msgid "Invalid profile format"
+msgstr "Invalidt profil-format"
 
-msgid "Invalid language tag format"
-msgstr "Invalidt sprogkodeformat"
+msgid "Unknown profile"
+msgstr "Ukendt profil"
diff --git a/t/db.t b/t/db.t
index 865831734..6d85faed8 100644
--- a/t/db.t
+++ b/t/db.t
@@ -20,18 +20,18 @@ sub encode_and_fingerprint {
 subtest 'encoding and fingerprint' => sub {
 
     subtest 'missing properties' => sub {
-        my $expected_encoded_params = '{"domain":"example.com","ds_info":[],"ipv4":true,"ipv6":true,"nameservers":[],"profile":"default"}';
-
         my %params = ( domain => "example.com" );
 
+        my $expected_encoded_params = '{"domain":"example.com","ds_info":[],"ipv4":null,"ipv6":null,"nameservers":[],"profile":"default"}';
         my ( $encoded_params, $fingerprint ) = encode_and_fingerprint( \%params );
         is $encoded_params, $expected_encoded_params, 'domain only: the encoded strings should match';
         #diag ($fingerprint);
 
+        my $expected_encoded_params_v4_true = '{"domain":"example.com","ds_info":[],"ipv4":true,"ipv6":null,"nameservers":[],"profile":"default"}';
         $params{ipv4} = JSON::PP->true;
         my ( $encoded_params_ipv4, $fingerprint_ipv4 ) = encode_and_fingerprint( \%params );
-        is $encoded_params_ipv4, $expected_encoded_params, 'add ipv4: the encoded strings should match';
-        is $fingerprint_ipv4, $fingerprint, 'fingerprints should match';
+        is $encoded_params_ipv4, $expected_encoded_params_v4_true, 'add ipv4: the encoded strings should match';
+        isnt $fingerprint_ipv4, $fingerprint, 'fingerprints should not match';
     };
 
     subtest 'array properties' => sub {
@@ -121,7 +121,7 @@ subtest 'encoding and fingerprint' => sub {
     };
 
     subtest 'garbage properties set' => sub {
-        my $expected_encoded_params = '{"client":"GUI v3.3.0","domain":"example.com","ds_info":[],"ipv4":true,"ipv6":true,"nameservers":[],"profile":"default"}';
+        my $expected_encoded_params = '{"client":"GUI v3.3.0","domain":"example.com","ds_info":[],"ipv4":null,"ipv6":null,"nameservers":[],"profile":"default"}';
         my %params1 = (
             domain => "example.com",
         );
@@ -174,6 +174,8 @@ subtest 'encoding and fingerprint' => sub {
         my $expected_fingerprint = '8c64f7feaa3f13b77e769720991f2a79';
 
         my %params = ( domain => "café.example" );
+        $params{ipv4} = JSON::PP->true;
+        $params{ipv6} = JSON::PP->true;
 
         my ( $encoded_params, $fingerprint ) = encode_and_fingerprint( \%params );
         is $encoded_params, $expected_encoded_params, 'IDN domain: the encoded strings should match';
@@ -184,7 +186,7 @@ subtest 'encoding and fingerprint' => sub {
         subtest 'in domain' => sub {
             my %params1 = ( domain => "example.com" );
             my %params2 = ( domain => "example.com." );
-            my $expected_encoded_params = encode_utf8( '{"domain":"example.com","ds_info":[],"ipv4":true,"ipv6":true,"nameservers":[],"profile":"default"}' );
+            my $expected_encoded_params = encode_utf8( '{"domain":"example.com","ds_info":[],"ipv4":null,"ipv6":null,"nameservers":[],"profile":"default"}' );
 
             my ( $encoded_params1, $fingerprint1 ) = encode_and_fingerprint( \%params1 );
             my ( $encoded_params2, $fingerprint2 ) = encode_and_fingerprint( \%params2 );
@@ -196,7 +198,7 @@ subtest 'encoding and fingerprint' => sub {
         subtest 'in nameserver' => sub {
             my %params1 = ( domain => "example.com", nameservers => [ { ns => "ns1.example.com." } ] );
             my %params2 = ( domain => "example.com", nameservers => [ { ns => "ns1.example.com" } ] );
-            my $expected_encoded_params = encode_utf8( '{"domain":"example.com","ds_info":[],"ipv4":true,"ipv6":true,"nameservers":[{"ns":"ns1.example.com"}],"profile":"default"}' );
+            my $expected_encoded_params = encode_utf8( '{"domain":"example.com","ds_info":[],"ipv4":null,"ipv6":null,"nameservers":[{"ns":"ns1.example.com"}],"profile":"default"}' );
 
             my ( $encoded_params1, $fingerprint1 ) = encode_and_fingerprint( \%params1 );
             my ( $encoded_params2, $fingerprint2 ) = encode_and_fingerprint( \%params2 );
@@ -207,7 +209,7 @@ subtest 'encoding and fingerprint' => sub {
 
         subtest 'root is not modified' => sub {
             my %params = ( domain => "." );
-            my $expected_encoded_params = encode_utf8( '{"domain":".","ds_info":[],"ipv4":true,"ipv6":true,"nameservers":[],"profile":"default"}' );
+            my $expected_encoded_params = encode_utf8( '{"domain":".","ds_info":[],"ipv4":null,"ipv6":null,"nameservers":[],"profile":"default"}' );
 
             my ( $encoded_params, $fingerprint ) = encode_and_fingerprint( \%params );
             is $encoded_params, $expected_encoded_params, 'the encoded strings should match';