Add link safety 51.md

51.md

@@ -151,6 +151,49 @@ Some clients have used these lists in the past, but they should work on transiti
 }
 ```
 
+### Link Safety
+
+A kind `10099` replaceable event for storing user domain preferences. If a client automatically loads content links, these provide settings to the user to change their preferences. Aggregating kind `10099` from other users can be useful in informing users should they change the default settings.
+
+```jsonc
+{
+  "kind": 10099,
+  "content": "",
+  "tags": [
+    ["d", "domain_lists"], // identifier 
+    ["white", "nostr.build"],
+    ["white", "void.cat"],
+    ["black", "malicious-site.net"],
+    ["black", "scam-domain.com"]
+    ["unknown", "ask"]  // Options: "load" | "block" | "ask"
+  ]
+}
+```
+
+### Report Event Extension
+
+Extend kind `1984` events to include domain reporting:
+
+```jsonc
+{
+  "kind": 1984,
+  "tags": [
+    ["u", "https://malicious-site.net", "malware"],
+    ["L", "security.domain.safety"],
+    ["l", "NS-mal", "security.domain.safety"]
+  ],
+  "content": "Domain distributes malware",
+}
+```
+
+Example Report Types
+----------------------
+Add the following report types for domains:
+- `ip_grab` - Sites attempting to collect IP addresses
+- `redirect` - Unexpected redirects to other domains
+- `nsfw_content` - Adult or explicit content
+- `phishing` - Fraudulent sites imitating legitimate services
+
 ## Encryption process pseudocode
 
 ```scala