diff --git a/lib/harAnalyzer.js b/lib/harAnalyzer.js
index ec89251..4d6cc86 100644
--- a/lib/harAnalyzer.js
+++ b/lib/harAnalyzer.js
@@ -100,6 +100,32 @@ export class HarAnalyzer {
             return knowledgeData;
         }
 
+        if (!('htmls' in analyzedData)) {
+            return knowledgeData;
+        }
+
+        if (analyzedData['htmls'].length === 0) {
+            knowledgeData['issues'] = {
+                'no-network': {
+                    'rule': 'no-network',
+                    'category': 'technical',
+                    'severity': 'warning',
+                    'subIssues': [
+                        {
+                            'url': url,
+                            'rule': 'no-network',
+                            'category': 'standard',
+                            'severity': 'warning',
+                            'text': `No HTML content found in the HAR file.`,
+                            'line': 0,
+                            'column': 0
+                        }
+                    ]
+                }
+            };
+            return knowledgeData;
+        }
+
         if (!('all-scripts' in analyzedData)) {
             return knowledgeData;
         }