diff --git a/WebHandler/ADCompareWebHandler.cs b/WebHandler/ADCompareWebHandler.cs
index 7a11cbc..b0ae947 100644
--- a/WebHandler/ADCompareWebHandler.cs
+++ b/WebHandler/ADCompareWebHandler.cs
@@ -44,13 +44,13 @@ namespace Disco.Plugins.ADCompare.WebHandler
             var service = new DeviceCompareService(Database);
             var summary = service.CompareAllDevices();
             var sb = new StringBuilder();
-            sb.AppendLine("SerialNumber,ComputerName,DiscoAssignedUser,DiscoAssignedUserName,ADManagedByUser,ADManagedByName,Match,Reason");
+            sb.AppendLine("SerialNumber,ComputerName,DiscoAssignedUser,DiscoAssignedUserName,ADManagedBy,Match,Reason");
             foreach (var r in summary.Results.Where(r => !r.IsMatch))
             {
                 sb.AppendLine(string.Join(",",
                     CsvEsc(r.SerialNumber), CsvEsc(r.ComputerName),
                     CsvEsc(r.DiscoAssignedUserId), CsvEsc(r.DiscoAssignedUserDisplayName),
-                    CsvEsc(r.ADManagedByUserId), CsvEsc(r.ADManagedByDisplayName),
+                    CsvEsc(r.ADManagedByDisplayName),
                     r.IsMatch.ToString(), CsvEsc(r.MismatchReason)));
             }
             var fileName = "AD_ManagedBy_Compare_" + DateTime.Now.ToString("yyyyMMdd_HHmmss") + ".csv";
@@ -103,14 +103,15 @@ namespace Disco.Plugins.ADCompare.WebHandler
             sb.Append(".green{color:#5cb85c;} .orange{color:#f0ad4e;} .red{color:#d9534f;} .blue{color:#5bc0de;} .grey{color:#999;}");
             sb.Append("table{width:100%;border-collapse:collapse;margin-top:10px;} th{background:#f5f5f5;text-align:left;padding:8px;border-bottom:2px solid #ddd;}");
             sb.Append("td{padding:8px;border-bottom:1px solid #eee;} tr:hover{background:#f9f9f9;}");
-            sb.Append(".warn-row{background:#fcf8e3;} .danger-row{background:#f2dede;}");
+            sb.Append(".warn-row{background:#fcf8e3;}");
             sb.Append(".badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:11px;color:#fff;}");
-            sb.Append(".badge-warn{background:#f0ad4e;} .badge-err{background:#d9534f;}");
+            sb.Append(".badge-warn{background:#f0ad4e;}");
             sb.Append(".muted{color:#999;font-style:italic;} .small{font-size:12px;color:#888;}");
+            sb.Append(".info-bar{margin:10px 0;padding:8px 12px;background:#d9edf7;border-radius:4px;font-size:13px;color:#31708f;}");
             sb.Append("</style></head><body>");
 
             sb.Append("<h2>AD Compare &mdash; Device Managed By</h2>");
-            sb.Append("<p>Compares the AD computer <strong>Managed By</strong> field against the Disco <strong>Assigned User</strong>.</p>");
+            sb.Append("<p>Compares the AD computer <strong>Managed By</strong> field against the Disco <strong>Assigned User</strong> for domain-joined devices found in AD.</p>");
 
             sb.Append("<div style='margin:15px 0;'>");
             sb.Append("<a href='" + pluginUrl + "/Run' class='btn btn-primary'>&#x21bb; Run Comparison</a>");
@@ -122,61 +123,64 @@ namespace Disco.Plugins.ADCompare.WebHandler
 
             if (summary != null)
             {
+                // Summary stats - only devices found in AD
                 sb.Append("<div class='summary'>");
-                sb.Append("<div class='stat'><div class='num'>" + summary.TotalDevices + "</div><div class='lbl'>Total Devices</div></div>");
+                sb.Append("<div class='stat'><div class='num'>" + summary.TotalDevices + "</div><div class='lbl'>Devices Checked</div></div>");
                 sb.Append("<div class='stat'><div class='num green'>" + summary.DevicesMatched + "</div><div class='lbl'>Matched</div></div>");
                 sb.Append("<div class='stat'><div class='num orange'>" + summary.DevicesMismatched + "</div><div class='lbl'>Mismatched</div></div>");
-                sb.Append("<div class='stat'><div class='num red'>" + summary.DevicesNotInAD + "</div><div class='lbl'>Not in AD</div></div>");
                 sb.Append("<div class='stat'><div class='num blue'>" + summary.DevicesNoManagedBy + "</div><div class='lbl'>No ManagedBy</div></div>");
                 sb.Append("<div class='stat'><div class='num grey'>" + summary.DevicesNoAssignment + "</div><div class='lbl'>No Assignment</div></div>");
                 sb.Append("</div>");
 
+                // Info bar for filtered items
+                if (summary.DevicesNotInAD > 0 || summary.SkippedDevices > 0)
+                {
+                    sb.Append("<div class='info-bar'>");
+                    sb.Append("<strong>Filtered out:</strong> ");
+                    if (summary.DevicesNotInAD > 0)
+                    {
+                        sb.Append(summary.DevicesNotInAD + " device(s) not found in AD");
+                    }
+                    if (summary.DevicesNotInAD > 0 && summary.SkippedDevices > 0)
+                    {
+                        sb.Append(", ");
+                    }
+                    if (summary.SkippedDevices > 0)
+                    {
+                        sb.Append(summary.SkippedDevices + " device(s) without valid domain ID");
+                    }
+                    sb.Append("</div>");
+                }
+
+                // Results table - mismatches only (all results are AD-found devices)
                 var mismatches = summary.Results.Where(r => !r.IsMatch).ToList();
 
                 if (mismatches.Count == 0)
                 {
                     sb.Append("<div style='padding:20px;background:#dff0d8;border-radius:4px;margin-top:15px;'>");
-                    sb.Append("<strong>&#x2713; All devices match!</strong> Every device's Disco assigned user matches the AD Managed By field.");
+                    sb.Append("<strong>&#x2713; All devices match!</strong> Every device found in AD has its Managed By matching the Disco assigned user.");
                     sb.Append("</div>");
                 }
                 else
                 {
                     sb.Append("<h3 style='margin-top:20px;'>Mismatches (" + mismatches.Count + ")</h3>");
                     sb.Append("<table><thead><tr>");
-                    sb.Append("<th>Status</th><th>Serial Number</th><th>Computer Name</th>");
+                    sb.Append("<th>Serial Number</th><th>Computer Name</th>");
                     sb.Append("<th>Disco Assigned User</th><th>AD Managed By</th><th>Reason</th>");
                     sb.Append("</tr></thead><tbody>");
 
                     foreach (var r in mismatches)
                     {
-                        string rowClass = r.FoundInAD ? "warn-row" : "danger-row";
-                        string badge = r.FoundInAD
-                            ? "<span class='badge badge-warn'>Mismatch</span>"
-                            : "<span class='badge badge-err'>Not in AD</span>";
-
                         string discoUser = !string.IsNullOrEmpty(r.DiscoAssignedUserId)
                             ? H(r.DiscoAssignedUserId) + (r.DiscoAssignedUserDisplayName != null
                                 ? "<br/><span class='small'>" + H(r.DiscoAssignedUserDisplayName) + "</span>" : "")
                             : "<span class='muted'>Not assigned</span>";
 
-                        string adUser;
-                        if (!string.IsNullOrEmpty(r.ADManagedByUserId))
-                        {
-                            adUser = H(r.ADManagedByUserId);
-                            if (r.ADManagedByDisplayName != null)
-                                adUser = adUser + "<br/><span class='small'>" + H(r.ADManagedByDisplayName) + "</span>";
-                        }
-                        else if (r.FoundInAD)
-                        {
-                            adUser = "<span class='muted'>Empty</span>";
-                        }
-                        else
-                        {
-                            adUser = "<span class='muted'>N/A</span>";
-                        }
+                        string adUser = !string.IsNullOrEmpty(r.ADManagedByDisplayName)
+                            ? H(r.ADManagedByDisplayName)
+                            : "<span class='muted'>Empty</span>";
 
-                        sb.Append("<tr class='" + rowClass + "'>");
-                        sb.Append("<td>" + badge + "</td>");
+                        sb.Append("<tr class='warn-row'>");
                         sb.Append("<td>" + H(r.SerialNumber) + "</td>");
                         sb.Append("<td>" + H(r.ComputerName) + "</td>");
                         sb.Append("<td>" + discoUser + "</td>");

Status	Serial Number	Computer Name	Serial Number	Computer Name	Disco Assigned User	AD Managed By	Reason
" + badge + "
" + H(r.SerialNumber) + "	" + H(r.ComputerName) + "	" + discoUser + "