diff --git a/hosts/caddy/default.nix b/hosts/caddy/default.nix
index dea75b5..230fcea 100644
--- a/hosts/caddy/default.nix
+++ b/hosts/caddy/default.nix
@@ -118,6 +118,12 @@ in
           host = p.hosts.metrics;
         };
       };
+
+      uptime-kuma.proxy = {
+        enable = true;
+        domain = p.domains.public;
+        host = p.hosts.portainer;
+      };
     };
 
     networking = {
diff --git a/hosts/portainer/default.nix b/hosts/portainer/default.nix
index e72deef..a1bdd38 100644
--- a/hosts/portainer/default.nix
+++ b/hosts/portainer/default.nix
@@ -16,6 +16,9 @@ in
       commons.enable = true;
       lxc-standard.enable = true;
     };
+
+    monitoring.uptime-kuma.enable = true;
+
     virtualisation = {
       proxmox.enable = true;
       portainer = {
diff --git a/modules/monitoring/uptime-kuma.nix b/modules/monitoring/uptime-kuma.nix
index b615b6a..9095a42 100644
--- a/modules/monitoring/uptime-kuma.nix
+++ b/modules/monitoring/uptime-kuma.nix
@@ -24,6 +24,14 @@ in
         '';
       };
 
+      subdomain = lib.mkOption {
+        default = "up";
+        type = lib.types.str;
+        description = ''
+          The subdomain where Prometheus is reachable
+        '';
+      };
+
       host = lib.mkOption {
         default = "localhost";
         type = lib.types.str;
@@ -41,17 +49,23 @@ in
       services.uptime-kuma = {
         enable = true;
         settings = {
-          HOST = "::";
+          HOST = "0.0.0.0";
           PORT = toString port;
         };
       };
 
+      systemd.services.uptime-kuma.serviceConfig = {
+        SupplementaryGroups = "docker";
+      };
+
+      networking.firewall.allowedTCPPorts = [ port ];
+
     })
 
     (lib.mkIf cfg.proxy.enable {
       services.caddy = with cfg.proxy; {
-        virtualHosts."up.${domain}".extraConfig = ''
-          reverse_proxy http://${host}:${port}
+        virtualHosts."${subdomain}.${domain}".extraConfig = ''
+          reverse_proxy http://${host}:${toString port}
           import cloudflare_${domain}
         '';
       };