diff --git a/Source/domainset/reject.conf b/Source/domainset/reject.conf
index 402f4c0b..604fe443 100644
--- a/Source/domainset/reject.conf
+++ b/Source/domainset/reject.conf
@@ -1292,6 +1292,7 @@ psb.djyde.com
 otel.cua.ai
 stat.i3.dmm.com
 tracking.cds.dmm.co.jp
+u.lessbutbetter.studio # Umami
 
 cdn.perfops.net
 rum-cdn.perfops.net