diff --git a/css/style.css b/css/style.css
index 208e5552..b523fd42 100644
--- a/css/style.css
+++ b/css/style.css
@@ -3,6 +3,7 @@
   --color-card: #1e293b;
   --color-primary: #fe0032;
   --color-secondary: #ff93a5;
+  --color-card-critical: #3f0b13;
   --color-text: #f8fafc;
   --color-muted: #94a3b8;
   --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
@@ -74,6 +75,19 @@ header img {
   box-shadow: var(--shadow-md);
 }
 
+.video-card[data-owner-is-viewer="false"][data-url-health-state="offline"][data-stream-health-state="unhealthy"] {
+  display: none;
+}
+
+.video-card[data-owner-is-viewer="true"][data-url-health-state="offline"][data-stream-health-state="unhealthy"] {
+  background-color: var(--color-card-critical);
+  box-shadow: 0 0 0 1px rgba(239, 68, 68, 0.35), var(--shadow-md);
+}
+
+.video-card[data-owner-is-viewer="true"][data-url-health-state="offline"][data-stream-health-state="unhealthy"]:hover {
+  box-shadow: 0 0 0 1px rgba(239, 68, 68, 0.45), var(--shadow-lg);
+}
+
 .video-card--enter {
   opacity: 0;
   animation: video-card-fade-in 220ms ease-out forwards;
diff --git a/js/app.js b/js/app.js
index 7d693751..e379a8d6 100644
--- a/js/app.js
+++ b/js/app.js
@@ -3243,6 +3243,10 @@ class bitvidApp {
     const hadMargin = badgeEl.classList.contains("mt-3");
 
     badgeEl.dataset.urlHealthState = status;
+    const cardEl = badgeEl.closest(".video-card");
+    if (cardEl) {
+      cardEl.dataset.urlHealthState = status;
+    }
     badgeEl.setAttribute("aria-live", "polite");
     badgeEl.setAttribute("role", status === "offline" ? "alert" : "status");
     badgeEl.textContent = message;
@@ -3677,6 +3681,34 @@ class bitvidApp {
       template.innerHTML = cardHtml.trim();
       const cardEl = template.content.firstElementChild;
       if (cardEl) {
+        cardEl.dataset.ownerIsViewer = canEdit ? "true" : "false";
+        if (typeof video.pubkey === "string" && video.pubkey) {
+          cardEl.dataset.ownerPubkey = video.pubkey;
+        } else if (cardEl.dataset.ownerPubkey) {
+          delete cardEl.dataset.ownerPubkey;
+        }
+
+        if (trimmedUrl) {
+          cardEl.dataset.urlHealthState = "checking";
+          if (cardEl.dataset.urlHealthReason) {
+            delete cardEl.dataset.urlHealthReason;
+          }
+        } else {
+          cardEl.dataset.urlHealthState = "offline";
+          cardEl.dataset.urlHealthReason = "missing-source";
+        }
+        if (magnetProvided && magnetSupported) {
+          cardEl.dataset.streamHealthState = "checking";
+          if (cardEl.dataset.streamHealthReason) {
+            delete cardEl.dataset.streamHealthReason;
+          }
+        } else {
+          cardEl.dataset.streamHealthState = "unhealthy";
+          cardEl.dataset.streamHealthReason = magnetProvided
+            ? "unsupported"
+            : "missing-source";
+        }
+
         const thumbnailEl = cardEl.querySelector("[data-video-thumbnail]");
         if (thumbnailEl) {
           const markThumbnailAsLoaded = () => {
diff --git a/js/channelProfile.js b/js/channelProfile.js
index 531d5ad4..c9a08660 100644
--- a/js/channelProfile.js
+++ b/js/channelProfile.js
@@ -360,6 +360,13 @@ async function loadUserVideos(pubkey) {
         "duration-300"
       );
 
+      cardEl.dataset.ownerIsViewer = canEdit ? "true" : "false";
+      if (typeof video.pubkey === "string" && video.pubkey) {
+        cardEl.dataset.ownerPubkey = video.pubkey;
+      } else if (cardEl.dataset.ownerPubkey) {
+        delete cardEl.dataset.ownerPubkey;
+      }
+
       const rawMagnet =
         typeof video.magnet === "string" ? video.magnet : "";
       const trimmedMagnet = rawMagnet ? rawMagnet.trim() : "";
@@ -433,6 +440,27 @@ async function loadUserVideos(pubkey) {
         delete cardEl.dataset.torrentSupported;
       }
 
+      if (trimmedUrl) {
+        cardEl.dataset.urlHealthState = "checking";
+        if (cardEl.dataset.urlHealthReason) {
+          delete cardEl.dataset.urlHealthReason;
+        }
+      } else {
+        cardEl.dataset.urlHealthState = "offline";
+        cardEl.dataset.urlHealthReason = "missing-source";
+      }
+      if (magnetProvided && magnetSupported) {
+        cardEl.dataset.streamHealthState = "checking";
+        if (cardEl.dataset.streamHealthReason) {
+          delete cardEl.dataset.streamHealthReason;
+        }
+      } else {
+        cardEl.dataset.streamHealthState = "unhealthy";
+        cardEl.dataset.streamHealthReason = magnetProvided
+          ? "unsupported"
+          : "missing-source";
+      }
+
       if (magnetProvided) {
         cardEl.dataset.magnet = playbackMagnet;
       } else if (cardEl.dataset.magnet) {
diff --git a/js/gridHealth.js b/js/gridHealth.js
index b2cf13ca..997ce041 100644
--- a/js/gridHealth.js
+++ b/js/gridHealth.js
@@ -358,10 +358,37 @@ function getIntersectionRect(entry) {
 }
 
 function setBadge(card, state, details) {
+  if (!(card instanceof HTMLElement)) {
+    return;
+  }
+
+  const normalizedState =
+    typeof state === "string" && state ? state : "unknown";
+  const peersValue =
+    details && Number.isFinite(details.peers)
+      ? Math.max(0, Number(details.peers))
+      : 0;
+  const hasPeerCount = details ? Number.isFinite(details.peers) : false;
+  const peersTextValue = hasPeerCount ? String(peersValue) : "";
+
+  card.dataset.streamHealthState = normalizedState;
+  if (hasPeerCount) {
+    card.dataset.streamHealthPeers = peersTextValue;
+  } else if (card.dataset.streamHealthPeers) {
+    delete card.dataset.streamHealthPeers;
+  }
+
+  if (details && typeof details.reason === "string" && details.reason) {
+    card.dataset.streamHealthReason = details.reason;
+  } else if (card.dataset.streamHealthReason) {
+    delete card.dataset.streamHealthReason;
+  }
+
   const badge = card.querySelector(".torrent-health-badge");
   if (!badge) {
     return;
   }
+
   const hadMargin = badge.classList.contains("mt-3");
 
   const baseClasses = [
@@ -409,22 +436,19 @@ function setBadge(card, state, details) {
     },
   };
 
-  const entry = map[state] || map.unknown;
+  const entry = map[normalizedState] || map.unknown;
   entry.classes.forEach((cls) => badge.classList.add(cls));
 
-  const peers =
-    details && Number.isFinite(details.peers)
-      ? Math.max(0, Number(details.peers))
-      : 0;
-  const peersText = state === "healthy" && peers > 0 ? ` (${peers})` : "";
+  const peersText =
+    normalizedState === "healthy" && peersValue > 0 ? ` (${peersValue})` : "";
 
   const iconPrefix = entry.icon ? `${entry.icon} ` : "";
   badge.textContent = `${iconPrefix}WebTorrent${peersText}`;
   const tooltip =
-    state === "checking" || state === "unknown"
+    normalizedState === "checking" || normalizedState === "unknown"
       ? entry.aria
       : buildTooltip({
-          peers,
+          peers: peersValue,
           checkedAt: details?.checkedAt,
           reason: details?.reason,
         });
@@ -432,9 +456,9 @@ function setBadge(card, state, details) {
   badge.setAttribute("title", tooltip);
   badge.setAttribute("aria-live", entry.role === "alert" ? "assertive" : "polite");
   badge.setAttribute("role", entry.role);
-  badge.dataset.streamHealthState = state;
-  if (Number.isFinite(peers)) {
-    badge.dataset.streamHealthPeers = String(peers);
+  badge.dataset.streamHealthState = normalizedState;
+  if (hasPeerCount) {
+    badge.dataset.streamHealthPeers = peersTextValue;
   } else if (badge.dataset.streamHealthPeers) {
     delete badge.dataset.streamHealthPeers;
   }
@@ -446,13 +470,13 @@ function handleCardVisible({ card, pendingByCard, priority = 0 }) {
   }
   const magnet = card.dataset.magnet || "";
   if (!magnet) {
-    setBadge(card, "unknown");
+    setBadge(card, "unhealthy", { reason: "missing-source" });
     return;
   }
 
   const infoHash = infoHashFromMagnet(magnet);
   if (!infoHash) {
-    setBadge(card, "unknown");
+    setBadge(card, "unhealthy", { reason: "invalid" });
     return;
   }
 
@@ -523,7 +547,7 @@ export function attachHealthBadges(container) {
     state.observedCards.add(card);
     state.observer.observe(card);
     if (!card.dataset.magnet) {
-      setBadge(card, "unknown");
+      setBadge(card, "unhealthy", { reason: "missing-source" });
     }
   });
   processObserverEntries(state.observer.takeRecords(), state);
diff --git a/js/subscriptions.js b/js/subscriptions.js
index 68b42102..9a55fef9 100644
--- a/js/subscriptions.js
+++ b/js/subscriptions.js
@@ -467,6 +467,34 @@ class SubscriptionsManager {
       t.innerHTML = cardHtml.trim();
       const cardEl = t.content.firstElementChild;
       if (cardEl) {
+        cardEl.dataset.ownerIsViewer = canEdit ? "true" : "false";
+        if (typeof video.pubkey === "string" && video.pubkey) {
+          cardEl.dataset.ownerPubkey = video.pubkey;
+        } else if (cardEl.dataset.ownerPubkey) {
+          delete cardEl.dataset.ownerPubkey;
+        }
+
+        if (trimmedUrl) {
+          cardEl.dataset.urlHealthState = "checking";
+          if (cardEl.dataset.urlHealthReason) {
+            delete cardEl.dataset.urlHealthReason;
+          }
+        } else {
+          cardEl.dataset.urlHealthState = "offline";
+          cardEl.dataset.urlHealthReason = "missing-source";
+        }
+        if (magnetProvided && magnetSupported) {
+          cardEl.dataset.streamHealthState = "checking";
+          if (cardEl.dataset.streamHealthReason) {
+            delete cardEl.dataset.streamHealthReason;
+          }
+        } else {
+          cardEl.dataset.streamHealthState = "unhealthy";
+          cardEl.dataset.streamHealthReason = magnetProvided
+            ? "unsupported"
+            : "missing-source";
+        }
+
         // Leave the data-play-* attributes empty in the literal markup so we can
         // assign the raw URL/magnet strings post-parsing without HTML entity
         // escaping, mirroring the approach in app.js. The URL is encoded so that