diff --git a/roles/prometheus/defaults/main.yml b/roles/prometheus/defaults/main.yml
index 9880d50c57f349f6f45bdb98ce9c161512afb0e5..38a997f4a085dff2f5f645e740647786d0b17767 100644
--- a/roles/prometheus/defaults/main.yml
+++ b/roles/prometheus/defaults/main.yml
@@ -28,16 +28,25 @@ blackbox_targets:
     - https://man.archlinux.org
     - https://master-key.archlinux.org
     - https://matrix.archlinux.org
+    - https://md.archlinux.org
     - https://mirror.pkgbuild.com
     - https://monitoring.archlinux.org
+    - https://mta-sts.archlinux.org/.well-known/mta-sts.txt
+    - https://mta-sts.aur.archlinux.org/.well-known/mta-sts.txt
+    - https://mta-sts.lists.archlinux.org/.well-known/mta-sts.txt
+    - https://mta-sts.master-key.archlinux.org/.well-known/mta-sts.txt
+    - https://openpgpkey.archlinux.org/.well-known/openpgpkey/archlinux.org/policy
     - https://packages.archlinux.org
     - https://patchwork.archlinux.org
+    - https://ping.archlinux.org
     - https://pkgbuild.com
     - https://planet.archlinux.org
     - https://projects.archlinux.org
+    - https://repos.archlinux.org/lastupdate
     - https://reproducible.archlinux.org
     - https://security.archlinux.org
     - https://sources.archlinux.org
+    - https://static.conf.archlinux.org/README.md
     - https://whatcanwedofor.archlinux.org
     - https://wiki.archlinux.org
     - https://www.archlinux.org