diff --git a/hosts/monitoring-3/prometheus.nix b/hosts/monitoring-3/prometheus.nix
index ccfbdf0..86a2e06 100644
--- a/hosts/monitoring-3/prometheus.nix
+++ b/hosts/monitoring-3/prometheus.nix
@@ -236,7 +236,15 @@ in {
               "achtbaan.nikhef.nl"
               "www.fem.tu-ilmenau.de"
               "www.heise.de"
+              "pe10-fd2.nodes.nethinks.com"
+              "pe20-fd2.nodes.nethinks.com"
+              "pe10-pet1.nodes.nethinks.com"
+              "pe20-pet1.nodes.nethinks.com"
+              "pe10-ffm1.nodes.nethinks.com"
               "ie10-ffm2.nodes.nethinks.com"
+              "pe10-ffm2.nodes.nethinks.com"
+              "ie10-due1.nodes.nethinks.com"
+              "pe10-due1.nodes.nethinks.com"
               "matrix.bau-ha.us"
             ];
           }