diff --git a/nixos/roles/monitoring-server/prometheus.nix b/nixos/roles/monitoring-server/prometheus.nix
index 43c32950..c54ef9a5 100644
--- a/nixos/roles/monitoring-server/prometheus.nix
+++ b/nixos/roles/monitoring-server/prometheus.nix
@@ -8,6 +8,9 @@
         enabledCollectors = ["systemd"];
         port = 9002;
       };
+      domain = {
+        enable = true;
+      };
     };
     ruleFiles = [
       ./synapse-v2.rules
@@ -21,6 +24,29 @@
           }
         ];
       }
+      {
+        job_name = "domains";
+        metrics_path = "/probe";
+        relabel_configs = [
+          {
+            source_labels = ["__address__"];
+            target_label = "__param_target";
+          }
+          {
+            target_label = "__address__";
+            replacement = "127.0.0.1:${toString config.services.prometheus.exporters.domain.port}";
+          }
+        ];
+        static_configs = [
+          {
+            targets = [
+              "dork.dev"
+              "inskip.me"
+              "gensokyo.zone"
+            ];
+          }
+        ];
+      }
       {
         job_name = "${config.networking.hostName}-synapse";
         metrics_path = "/_synapse/metrics";