diff --git a/src/db/migrations/001_add_relays.ts b/src/db/migrations/001_add_relays.ts
index a603c2ed..41f73a96 100644
--- a/src/db/migrations/001_add_relays.ts
+++ b/src/db/migrations/001_add_relays.ts
@@ -4,6 +4,7 @@ export async function up(db: Kysely<any>): Promise<void> {
   await db.schema
     .createTable('relays')
     .addColumn('url', 'text', (col) => col.primaryKey())
+    .addColumn('domain', 'text', (col) => col.notNull())
     .execute();
 }
 
diff --git a/src/db/relays.ts b/src/db/relays.ts
index 5b91c682..65b009d7 100644
--- a/src/db/relays.ts
+++ b/src/db/relays.ts
@@ -1,9 +1,14 @@
+import { tldts } from '@/deps.ts';
 import { db } from '@/db.ts';
 
 /** Inserts relays into the database, skipping duplicates. */
 function addRelays(relays: `wss://${string}`[]) {
   if (!relays.length) return Promise.resolve();
-  const values = relays.map((url) => ({ url }));
+
+  const values = relays.map((url) => ({
+    url,
+    domain: tldts.getDomain(url),
+  }));
 
   return db.insertInto('relays')
     .values(values)
diff --git a/src/deps.ts b/src/deps.ts
index d4431c7a..2c7d67d5 100644
--- a/src/deps.ts
+++ b/src/deps.ts
@@ -60,3 +60,4 @@ export {
   sql,
 } from 'npm:kysely@^0.25.0';
 export { DenoSqliteDialect } from 'https://gitlab.com/soapbox-pub/kysely-deno-sqlite/-/raw/v1.0.0/mod.ts';
+export { default as tldts } from 'npm:tldts@^6.0.14';