diff --git a/site-modules/profile/manifests/icinga2/objects/static_checks.pp b/site-modules/profile/manifests/icinga2/objects/static_checks.pp
index 250ba4e7..9287de4a 100644
--- a/site-modules/profile/manifests/icinga2/objects/static_checks.pp
+++ b/site-modules/profile/manifests/icinga2/objects/static_checks.pp
@@ -1,49 +1,70 @@
 # Static checks on the icinga master
 class profile::icinga2::objects::static_checks {
 
   $checks_file = '/etc/icinga2/conf.d/static-checks.conf'
 
   ::icinga2::object::host {'www.softwareheritage.org':
     import        => ['generic-host'],
     check_command => 'hostalive4',
     address       => 'www.softwareheritage.org',
     target        => $checks_file,
     vars          => {
       ping_wrta => 150,
       ping_crta => 300,
     },
   }
 
   ::icinga2::object::service {'Software Heritage Homepage':
     import        => ['generic-service'],
     host_name     => 'www.softwareheritage.org',
     check_command => 'http',
     target        => $checks_file,
     vars          => {
       http_vhost  => 'www.softwareheritage.org',
       http_uri    => '/',
       http_ssl    => true,
       http_sni    => true,
       http_string => '<title>Software Heritage</title>',
     },
   }
 
   ::icinga2::object::host {'swh-logging-prod':
     check_command => 'hostalive4',
     address       => '127.0.0.1',
     target        => $checks_file,
   }
 
   ::icinga2::object::service {'swh-logging-prod cluster':
     host_name     => 'swh-logging-prod',
     check_command => 'check_escluster',
     target        => $checks_file,
   }
 
   ::icinga2::object::checkcommand {'check_escluster':
     import        => ['plugin-check-command'],
     command       => '/usr/lib/nagios/plugins/icinga_check_elasticsearch.sh',
     target        => $checks_file,
   }
 
+  ::icinga2::object::host {'DNS resolvers':
+    check_command => 'hostalive4',
+    address       => '127.0.0.1',
+    target        => $checks_file,
+  }
+
+  ::icinga2::object::service {'SOA':
+    host_name     => 'DNS resolvers',
+    check_command => 'check_resolvers',
+    target        => $checks_file,
+  }
+
+  ::icinga2::object::checkcommand {'check_resolvers':
+    import        => ['plugin-check-command'],
+    command       => [
+	'/usr/lib/nagios/plugins/dsa-nagios-checks_checks_dsa-check-soas.txt',
+	'internal.softwareheritage.org',
+    ],
+    target        => $checks_file,
+  }
+
 }