diff --git a/.mdox.validate.yaml b/.mdox.validate.yaml
index ba983aadc2..4a3edc4dbb 100644
--- a/.mdox.validate.yaml
+++ b/.mdox.validate.yaml
@@ -47,3 +47,6 @@ validators:
   # Expired certificate
   - regex: 'bestpractices\.coreinfrastructure\.org\/projects\/3048'
     type: 'ignore'
+  # Frequent DNS issues. 
+  - regex: 'build\.thebeat\.co'
+    type: 'ignore'