diff --git a/frontend-modern/src/components/Alerts/ThresholdsTable.tsx b/frontend-modern/src/components/Alerts/ThresholdsTable.tsx
index 46ba61301..e8e77db9f 100644
--- a/frontend-modern/src/components/Alerts/ThresholdsTable.tsx
+++ b/frontend-modern/src/components/Alerts/ThresholdsTable.tsx
@@ -244,6 +244,12 @@ interface ThresholdsTableProps {
   ) => void;
   dockerIgnoredPrefixes: () => string[];
   setDockerIgnoredPrefixes: (value: string[] | ((prev: string[]) => string[])) => void;
+  ignoredGuestPrefixes: () => string[];
+  setIgnoredGuestPrefixes: (value: string[] | ((prev: string[]) => string[])) => void;
+  guestTagWhitelist: () => string[];
+  setGuestTagWhitelist: (value: string[] | ((prev: string[]) => string[])) => void;
+  guestTagBlacklist: () => string[];
+  setGuestTagBlacklist: (value: string[] | ((prev: string[]) => string[])) => void;
   storageDefault: () => number;
   setStorageDefault: (value: number) => void;
   resetGuestDefaults?: () => void;
@@ -432,6 +438,67 @@ export function ThresholdsTable(props: ThresholdsTableProps) {
     props.setHasUnsavedChanges(true);
   };
 
+  const [ignoredGuestInput, setIgnoredGuestInput] = createSignal(
+    props.ignoredGuestPrefixes().join('\n'),
+  );
+  const [guestTagWhitelistInput, setGuestTagWhitelistInput] = createSignal(
+    props.guestTagWhitelist().join('\n'),
+  );
+  const [guestTagBlacklistInput, setGuestTagBlacklistInput] = createSignal(
+    props.guestTagBlacklist().join('\n'),
+  );
+
+  createEffect(() => {
+    const remote = props.ignoredGuestPrefixes();
+    const local = ignoredGuestInput();
+    const normalizedLocal = normalizeDockerIgnoredInput(local);
+    const isSynced =
+      remote.length === normalizedLocal.length &&
+      remote.every((val, i) => val === normalizedLocal[i]);
+    if (!isSynced) setIgnoredGuestInput(remote.join('\n'));
+  });
+
+  createEffect(() => {
+    const remote = props.guestTagWhitelist();
+    const local = guestTagWhitelistInput();
+    const normalizedLocal = normalizeDockerIgnoredInput(local);
+    const isSynced =
+      remote.length === normalizedLocal.length &&
+      remote.every((val, i) => val === normalizedLocal[i]);
+    if (!isSynced) setGuestTagWhitelistInput(remote.join('\n'));
+  });
+
+  createEffect(() => {
+    const remote = props.guestTagBlacklist();
+    const local = guestTagBlacklistInput();
+    const normalizedLocal = normalizeDockerIgnoredInput(local);
+    const isSynced =
+      remote.length === normalizedLocal.length &&
+      remote.every((val, i) => val === normalizedLocal[i]);
+    if (!isSynced) setGuestTagBlacklistInput(remote.join('\n'));
+  });
+
+  const handleIgnoredGuestChange = (value: string) => {
+    setIgnoredGuestInput(value);
+    const normalized = normalizeDockerIgnoredInput(value);
+    props.setIgnoredGuestPrefixes(normalized);
+    props.setHasUnsavedChanges(true);
+  };
+
+  const handleGuestTagWhitelistChange = (value: string) => {
+    setGuestTagWhitelistInput(value);
+    const normalized = normalizeDockerIgnoredInput(value);
+    props.setGuestTagWhitelist(normalized);
+    props.setHasUnsavedChanges(true);
+  };
+
+  const handleGuestTagBlacklistChange = (value: string) => {
+    setGuestTagBlacklistInput(value);
+    const normalized = normalizeDockerIgnoredInput(value);
+    props.setGuestTagBlacklist(normalized);
+    props.setHasUnsavedChanges(true);
+  };
+
   // Set up keyboard shortcuts
   onMount(() => {
     const isEditableElement = (el: HTMLElement | null | undefined): boolean => {
@@ -2552,6 +2619,59 @@ export function ThresholdsTable(props: ThresholdsTableProps) {
             </CollapsibleSection>
           </Show>
 
+          <Show when={activeTab() === 'proxmox'}>
+            <CollapsibleSection
+              id="guest-filtering"
+              title="Guest Filtering"
+              collapsed={isCollapsed('guest-filtering')}
+              onToggle={() => toggleSection('guest-filtering')}
+              icon={<Monitor class="w-5 h-5" />}
+              emptyMessage="Configure guest filtering rules."
+            >
+              <div class="grid grid-cols-1 gap-6 p-4 xl:grid-cols-3">
+                <Card padding="md" tone="glass">
+                  <div class="mb-2">
+                    <h3 class="text-sm font-semibold text-gray-900 dark:text-gray-100">Ignored Prefixes</h3>
+                    <p class="text-xs text-gray-600 dark:text-gray-400">Skip metrics for guests starting with:</p>
+                  </div>
+                  <textarea
+                    value={ignoredGuestInput()}
+                    onInput={(e) => handleIgnoredGuestChange(e.currentTarget.value)}
+                    rows={6}
+                    class="w-full rounded-md border border-gray-300 bg-white p-2 text-sm text-gray-900 shadow-sm focus:border-sky-500 focus:outline-none focus:ring-2 focus:ring-sky-200 dark:border-gray-700 dark:bg-gray-800 dark:text-gray-100"
+                    placeholder="dev-"
+                  />
+                </Card>
+                <Card padding="md" tone="glass">
+                  <div class="mb-2">
+                    <h3 class="text-sm font-semibold text-gray-900 dark:text-gray-100">Tag Whitelist</h3>
+                    <p class="text-xs text-gray-600 dark:text-gray-400">Only monitor guests with at least one of these tags (leave empty to disable whitelist):</p>
+                  </div>
+                  <textarea
+                    value={guestTagWhitelistInput()}
+                    onInput={(e) => handleGuestTagWhitelistChange(e.currentTarget.value)}
+                    rows={6}
+                    class="w-full rounded-md border border-gray-300 bg-white p-2 text-sm text-gray-900 shadow-sm focus:border-sky-500 focus:outline-none focus:ring-2 focus:ring-sky-200 dark:border-gray-700 dark:bg-gray-800 dark:text-gray-100"
+                    placeholder="production"
+                  />
+                </Card>
+                <Card padding="md" tone="glass">
+                  <div class="mb-2">
+                    <h3 class="text-sm font-semibold text-gray-900 dark:text-gray-100">Tag Blacklist</h3>
+                    <p class="text-xs text-gray-600 dark:text-gray-400">Ignore guests with any of these tags:</p>
+                  </div>
+                  <textarea
+                    value={guestTagBlacklistInput()}
+                    onInput={(e) => handleGuestTagBlacklistChange(e.currentTarget.value)}
+                    rows={6}
+                    class="w-full rounded-md border border-gray-300 bg-white p-2 text-sm text-gray-900 shadow-sm focus:border-sky-500 focus:outline-none focus:ring-2 focus:ring-sky-200 dark:border-gray-700 dark:bg-gray-800 dark:text-gray-100"
+                    placeholder="maintenance"
+                  />
+                </Card>
+              </div>
+            </CollapsibleSection>
+          </Show>
+
           <Show when={hasSection('backups')}>
             <CollapsibleSection
               id="backups"
diff --git a/frontend-modern/src/pages/Alerts.tsx b/frontend-modern/src/pages/Alerts.tsx
index 813bfd6a3..b9b8d7597 100644
--- a/frontend-modern/src/pages/Alerts.tsx
+++ b/frontend-modern/src/pages/Alerts.tsx
@@ -1033,6 +1033,9 @@ export function Alerts() {
         setDockerPoweredOffSeverity(FACTORY_DOCKER_STATE_SEVERITY);
       }
       setDockerIgnoredPrefixes(config.dockerIgnoredContainerPrefixes ?? []);
+      setIgnoredGuestPrefixes(config.ignoredGuestPrefixes ?? []);
+      setGuestTagWhitelist(config.guestTagWhitelist ?? []);
+      setGuestTagBlacklist(config.guestTagBlacklist ?? []);
 
       if (config.storageDefault) {
         setStorageDefault(getTriggerValue(config.storageDefault) ?? 85);
@@ -1434,6 +1437,9 @@ export function Alerts() {
     FACTORY_DOCKER_STATE_SEVERITY,
   );
   const [dockerIgnoredPrefixes, setDockerIgnoredPrefixes] = createSignal<string[]>([]);
+  const [ignoredGuestPrefixes, setIgnoredGuestPrefixes] = createSignal<string[]>([]);
+  const [guestTagWhitelist, setGuestTagWhitelist] = createSignal<string[]>([]);
+  const [guestTagBlacklist, setGuestTagBlacklist] = createSignal<string[]>([]);
 
   const [storageDefault, setStorageDefault] = createSignal(FACTORY_STORAGE_DEFAULT);
   const [backupDefaults, setBackupDefaults] = createSignal<BackupAlertConfig>({
@@ -1748,6 +1754,15 @@ export function Alerts() {
                       dockerIgnoredContainerPrefixes: dockerIgnoredPrefixes()
                         .map((prefix) => prefix.trim())
                         .filter((prefix) => prefix.length > 0),
+                      ignoredGuestPrefixes: ignoredGuestPrefixes()
+                        .map((prefix) => prefix.trim())
+                        .filter((prefix) => prefix.length > 0),
+                      guestTagWhitelist: guestTagWhitelist()
+                        .map((tag) => tag.trim())
+                        .filter((tag) => tag.length > 0),
+                      guestTagBlacklist: guestTagBlacklist()
+                        .map((tag) => tag.trim())
+                        .filter((tag) => tag.length > 0),
                       storageDefault: createHysteresisThreshold(storageDefault()),
                       minimumDelta: 2.0,
                       suppressionWindow: 5,
@@ -2034,6 +2049,12 @@ export function Alerts() {
                   setDockerDefaults={setDockerDefaults}
                   dockerIgnoredPrefixes={dockerIgnoredPrefixes}
                   setDockerIgnoredPrefixes={setDockerIgnoredPrefixes}
+                  ignoredGuestPrefixes={ignoredGuestPrefixes}
+                  setIgnoredGuestPrefixes={setIgnoredGuestPrefixes}
+                  guestTagWhitelist={guestTagWhitelist}
+                  setGuestTagWhitelist={setGuestTagWhitelist}
+                  guestTagBlacklist={guestTagBlacklist}
+                  setGuestTagBlacklist={setGuestTagBlacklist}
                   storageDefault={storageDefault}
                   setStorageDefault={setStorageDefault}
                   resetGuestDefaults={resetGuestDefaults}
@@ -2192,7 +2213,7 @@ function OverviewTab(props: {
     if (!status) return false;
     return !status.features?.['ai_alerts'];
   });
-  const aiAlertsUpgradeURL = createMemo(() => licenseFeatures()?.upgrade_url || 'https://pulsemonitor.app/pro');
+  const aiAlertsUpgradeURL = createMemo(() => licenseFeatures()?.upgrade_url || 'https://pulserelay.pro');
   // Live streaming state for running patrol
   const [expandedLiveStream, setExpandedLiveStream] = createSignal(false);
   // Track streaming blocks for sequential display (like AI chat)
@@ -2205,7 +2226,7 @@ function OverviewTab(props: {
   const [currentThinking, setCurrentThinking] = createSignal('');
   let liveStreamUnsubscribe: (() => void) | null = null;
   const patrolRequiresLicense = createMemo(() => patrolStatus()?.license_required === true);
-  const patrolUpgradeURL = createMemo(() => patrolStatus()?.upgrade_url || 'https://pulsemonitor.app/pro');
+  const patrolUpgradeURL = createMemo(() => patrolStatus()?.upgrade_url || 'https://pulserelay.pro');
   const patrolLicenseNote = createMemo(() => {
     if (!patrolRequiresLicense()) return '';
     const status = patrolStatus()?.license_status;
@@ -4078,6 +4099,9 @@ interface ThresholdsTabProps {
   dockerDisableConnectivity: () => boolean;
   dockerPoweredOffSeverity: () => 'warning' | 'critical';
   dockerIgnoredPrefixes: () => string[];
+  ignoredGuestPrefixes: () => string[];
+  guestTagWhitelist: () => string[];
+  guestTagBlacklist: () => string[];
   storageDefault: () => number;
   timeThresholds: () => { guest: number; node: number; storage: number; pbs: number };
   metricTimeThresholds: () => Record<string, Record<string, number>>;
@@ -4146,6 +4170,9 @@ interface ThresholdsTabProps {
   setDockerDisableConnectivity: (value: boolean) => void;
   setDockerPoweredOffSeverity: (value: 'warning' | 'critical') => void;
   setDockerIgnoredPrefixes: (value: string[] | ((prev: string[]) => string[])) => void;
+  setIgnoredGuestPrefixes: (value: string[] | ((prev: string[]) => string[])) => void;
+  setGuestTagWhitelist: (value: string[] | ((prev: string[]) => string[])) => void;
+  setGuestTagBlacklist: (value: string[] | ((prev: string[]) => string[])) => void;
   setStorageDefault: (value: number) => void;
   setMetricTimeThresholds: (
     value:
@@ -4258,6 +4285,12 @@ function ThresholdsTab(props: ThresholdsTabProps) {
       setDockerPoweredOffSeverity={props.setDockerPoweredOffSeverity}
       dockerIgnoredPrefixes={props.dockerIgnoredPrefixes}
       setDockerIgnoredPrefixes={props.setDockerIgnoredPrefixes}
+      ignoredGuestPrefixes={props.ignoredGuestPrefixes}
+      setIgnoredGuestPrefixes={props.setIgnoredGuestPrefixes}
+      guestTagWhitelist={props.guestTagWhitelist}
+      setGuestTagWhitelist={props.setGuestTagWhitelist}
+      guestTagBlacklist={props.guestTagBlacklist}
+      setGuestTagBlacklist={props.setGuestTagBlacklist}
       storageDefault={props.storageDefault}
       setStorageDefault={props.setStorageDefault}
       timeThresholds={props.timeThresholds}
diff --git a/frontend-modern/src/types/alerts.ts b/frontend-modern/src/types/alerts.ts
index eba2e758a..fd9cfb4a9 100644
--- a/frontend-modern/src/types/alerts.ts
+++ b/frontend-modern/src/types/alerts.ts
@@ -121,6 +121,9 @@ export interface AlertConfig {
   storageDefault: HysteresisThreshold;
   dockerDefaults?: DockerThresholdConfig;
   dockerIgnoredContainerPrefixes?: string[];
+  ignoredGuestPrefixes?: string[];
+  guestTagWhitelist?: string[];
+  guestTagBlacklist?: string[];
   pmgDefaults?: PMGThresholdDefaults;
   snapshotDefaults?: SnapshotAlertConfig;
   backupDefaults?: BackupAlertConfig;
diff --git a/internal/alerts/alerts.go b/internal/alerts/alerts.go
index 37fdd9b20..58db7e82f 100644
--- a/internal/alerts/alerts.go
+++ b/internal/alerts/alerts.go
@@ -377,6 +377,9 @@ type AlertConfig struct {
 	StorageDefault                 HysteresisThreshold        `json:"storageDefault"`
 	DockerDefaults                 DockerThresholdConfig      `json:"dockerDefaults"`
 	DockerIgnoredContainerPrefixes []string                   `json:"dockerIgnoredContainerPrefixes,omitempty"`
+	IgnoredGuestPrefixes           []string                   `json:"ignoredGuestPrefixes,omitempty"`
+	GuestTagWhitelist              []string                   `json:"guestTagWhitelist,omitempty"`
+	GuestTagBlacklist              []string                   `json:"guestTagBlacklist,omitempty"`
 	PMGDefaults                    PMGThresholdConfig         `json:"pmgDefaults"`
 	SnapshotDefaults               SnapshotAlertConfig        `json:"snapshotDefaults"`
 	BackupDefaults                 BackupAlertConfig          `json:"backupDefaults"`
@@ -2097,6 +2100,9 @@ func (m *Manager) CheckGuest(guest interface{}, instanceName string) {
 	enabled := m.config.Enabled
 	disableAllGuests := m.config.DisableAllGuests
 	disableAllGuestsOffline := m.config.DisableAllGuestsOffline
+	ignoredGuestPrefixes := m.config.IgnoredGuestPrefixes
+	guestTagWhitelist := m.config.GuestTagWhitelist
+	guestTagBlacklist := m.config.GuestTagBlacklist
 	m.mu.RUnlock()
 
 	if !enabled {
@@ -2166,6 +2172,18 @@ func (m *Manager) CheckGuest(guest interface{}, instanceName string) {
 		return
 	}
 
+
+
+	// Check ignored prefixes
+	for _, prefix := range ignoredGuestPrefixes {
+		if prefix != "" && strings.HasPrefix(name, prefix) {
+			if cleared := m.suppressGuestAlerts(guestID); cleared {
+				m.saveActiveAlertsAsync("ignored-prefix")
+			}
+			return
+		}
+	}
+
 	settings := parsePulseTags(tags)
 	if settings.Suppress {
 		if cleared := m.suppressGuestAlerts(guestID); cleared {
@@ -2177,6 +2195,44 @@ func (m *Manager) CheckGuest(guest interface{}, instanceName string) {
 		return
 	}
 
+	// Custom Tag Filtering
+	if len(guestTagBlacklist) > 0 || len(guestTagWhitelist) > 0 {
+		// Normalize tags once for checking
+		normalizedTags := make(map[string]bool)
+		for _, tag := range tags {
+			normalizedTags[strings.ToLower(strings.TrimSpace(tag))] = true
+		}
+
+		// Check Blacklist
+		for _, block := range guestTagBlacklist {
+			if normalizedTags[strings.ToLower(strings.TrimSpace(block))] {
+				if cleared := m.suppressGuestAlerts(guestID); cleared {
+					m.saveActiveAlertsAsync("tag-blacklist")
+				}
+				log.Debug().Str("guestID", guestID).Msg("Guest suppressed by tag blacklist")
+				return
+			}
+		}
+
+		// Check Whitelist
+		if len(guestTagWhitelist) > 0 {
+			found := false
+			for _, allow := range guestTagWhitelist {
+				if normalizedTags[strings.ToLower(strings.TrimSpace(allow))] {
+					found = true
+					break
+				}
+			}
+			if !found {
+				if cleared := m.suppressGuestAlerts(guestID); cleared {
+					m.saveActiveAlertsAsync("tag-whitelist")
+				}
+				log.Debug().Str("guestID", guestID).Msg("Guest suppressed by tag whitelist (required tag not found)")
+				return
+			}
+		}
+	}
+
 	monitorOnly := settings.MonitorOnly
 	if monitorOnly || m.guestHasMonitorOnlyAlerts(guestID) {
 		log.Debug().