diff --git a/src/components/Config.tsx b/src/components/Config.tsx
index 2486ce1..91ff0b5 100644
--- a/src/components/Config.tsx
+++ b/src/components/Config.tsx
@@ -6,13 +6,13 @@ type ConfigProps = {
 };
 
 const RelayConfig = () => {
-  const { config, setConfig, addRelay, removeRelay } = useConfig();
+  const { config, addRelay, removeRelay } = useConfig();
 
   const [relayUrlInput, setRelayUrlInput] = createSignal<string>('');
 
   const handleClickAddRelay: JSX.EventHandler<HTMLFormElement, Event> = (ev) => {
     ev.preventDefault();
-    if (relayUrlInput().length > 0) return;
+    if (relayUrlInput().length === 0) return;
     addRelay(relayUrlInput());
     setRelayUrlInput('');
   };
diff --git a/src/components/notification/Reaction.tsx b/src/components/notification/Reaction.tsx
index f1afed9..4ce89b7 100644
--- a/src/components/notification/Reaction.tsx
+++ b/src/components/notification/Reaction.tsx
@@ -44,7 +44,7 @@ const Reaction: Component<ReactionProps> = (props) => {
             </Switch>
           </div>
           <div class="notification-user flex gap-1">
-            <div class="author-icon h-5 w-5 shrink-0">
+            <div class="author-icon h-5 w-5 shrink-0 overflow-hidden object-cover">
               <Show when={profile()?.picture != null}>
                 <img
                   src={profile()?.picture}
diff --git a/src/components/textNote/TextNoteDisplay.tsx b/src/components/textNote/TextNoteDisplay.tsx
index 58bdad8..bb839e3 100644
--- a/src/components/textNote/TextNoteDisplay.tsx
+++ b/src/components/textNote/TextNoteDisplay.tsx
@@ -146,7 +146,7 @@ const TextNoteDisplay: Component<TextNoteDisplayProps> = (props) => {
   return (
     <div class="nostr-textnote flex flex-col">
       <div class="flex w-full gap-1">
-        <div class="author-icon h-10 w-10 shrink-0">
+        <div class="author-icon h-10 w-10 shrink-0 overflow-hidden object-cover">
           <Show when={author()?.picture}>
             {/* TODO 画像は脆弱性回避のためにimgじゃない方法で読み込みたい */}
             <img
diff --git a/src/hooks/usePersistStatus.ts b/src/hooks/usePersistStatus.ts
index 7c5257a..ec34343 100644
--- a/src/hooks/usePersistStatus.ts
+++ b/src/hooks/usePersistStatus.ts
@@ -14,7 +14,7 @@ type UsePersistStatus = {
   loggedIn: () => void;
 };
 
-const InitialLoginStatus = {
+const InitialPersistStatus = {
   loggedIn: false,
   agreeWithNostrBuild: false,
 };
@@ -25,25 +25,21 @@ const deserializer = (json: string): PersistStatus => JSON.parse(json) as Persis
 
 const storage = createStorageWithSerializer(() => window.localStorage, serializer, deserializer);
 
-const [persistStatus, setLoginStatus] = createSignalWithStorage(
-  'RabbitLoginStatus',
-  InitialLoginStatus,
+const [persistStatus, setPersistStatus] = createSignalWithStorage(
+  'RabbitPersistStatus',
+  InitialPersistStatus,
   storage,
 );
 
 const usePersistStatus = (): UsePersistStatus => {
   const loggedIn = () => {
-    setLoginStatus((current) => ({ ...current, loggedIn: true }));
+    setPersistStatus((current) => ({ ...current, loggedIn: true }));
   };
 
   return {
     persistStatus: () => ({
-      get loggedIn() {
-        return persistStatus().loggedIn ?? false;
-      },
-      get agreeWithNostrBuild() {
-        return persistStatus().agreeWithNostrBuild ?? false;
-      },
+      ...InitialPersistStatus,
+      ...persistStatus(),
     }),
     loggedIn,
   };
diff --git a/src/nostr/useConfig.ts b/src/nostr/useConfig.ts
index 1bddc9d..8e2ac48 100644
--- a/src/nostr/useConfig.ts
+++ b/src/nostr/useConfig.ts
@@ -20,7 +20,7 @@ type UseConfig = {
 const InitialConfig: Config = {
   relayUrls: [
     'wss://relay-jp.nostr.wirednet.jp',
-    'wss://nostr.h3z.jp/',
+    'wss://nostr.h3z.jp',
     'wss://relay.damus.io',
     'wss://nos.lol',
     'wss://relay.snort.social',
@@ -55,7 +55,12 @@ const useConfig = (): UseConfig => {
     }));
   };
 
-  return { config, setConfig, addRelay, removeRelay };
+  return {
+    config: () => ({ ...InitialConfig, ...config() }),
+    setConfig,
+    addRelay,
+    removeRelay,
+  };
 };
 
 export default useConfig;
diff --git a/src/utils/imageUrl.ts b/src/utils/imageUrl.ts
index a569ddf..3cc04c8 100644
--- a/src/utils/imageUrl.ts
+++ b/src/utils/imageUrl.ts
@@ -1,8 +1,5 @@
-const domains = ['i.imgur.com', 'imgur.com', 'i.gyazo.com'];
-
 export const isImageUrl = (url: URL): boolean => {
   if (url.pathname.match(/\.(jpeg|jpg|png|gif|webp)$/i)) return true;
-  if (domains.includes(url.host)) return true;
 
   return false;
 };