diff --git a/site/public/tools/dot-compliance-check/index.html b/site/public/tools/dot-compliance-check/index.html
index caec281..d1e9436 100644
--- a/site/public/tools/dot-compliance-check/index.html
+++ b/site/public/tools/dot-compliance-check/index.html
@@ -253,6 +253,10 @@ Send reset link
   var labelColor = { green: "text-green-800", yellow: "text-yellow-800", red: "text-red-800", unknown: "text-gray-700" };
 
   function renderResults(data) {
+    if (!data || !data.legal_name) {
+      showError("No data returned. The carrier may not exist or the lookup timed out.");
+      return;
+    }
     var html = '';
 
     // Entity header card