diff --git a/src/client/app/admin/views/instance.vue b/src/client/app/admin/views/instance.vue
index ce3ce16f1c..16bfb9a362 100644
--- a/src/client/app/admin/views/instance.vue
+++ b/src/client/app/admin/views/instance.vue
@@ -6,6 +6,7 @@
 			<ui-input :value="host" readonly>{{ $t('host') }}</ui-input>
 			<ui-input v-model="name">{{ $t('instance-name') }}</ui-input>
 			<ui-textarea v-model="description">{{ $t('instance-description') }}</ui-textarea>
+			<ui-input v-model="iconUrl"><template #icon><fa icon="link"/></template>{{ $t('icon-url') }}</ui-input>
 			<ui-input v-model="mascotImageUrl"><template #icon><fa icon="link"/></template>{{ $t('logo-url') }}</ui-input>
 			<ui-input v-model="bannerUrl"><template #icon><fa icon="link"/></template>{{ $t('banner-url') }}</ui-input>
 			<ui-input v-model="errorImageUrl"><template #icon><fa icon="link"/></template>{{ $t('error-image-url') }}</ui-input>
@@ -157,6 +158,7 @@ export default Vue.extend({
 			mascotImageUrl: null,
 			bannerUrl: null,
 			errorImageUrl: null,
+			iconUrl: null,
 			name: null,
 			description: null,
 			languages: null,
@@ -207,6 +209,7 @@ export default Vue.extend({
 			this.mascotImageUrl = meta.mascotImageUrl;
 			this.bannerUrl = meta.bannerUrl;
 			this.errorImageUrl = meta.errorImageUrl;
+			this.iconUrl = meta.iconUrl;
 			this.name = meta.name;
 			this.description = meta.description;
 			this.languages = meta.langs.join(' ');
@@ -267,6 +270,7 @@ export default Vue.extend({
 				mascotImageUrl: this.mascotImageUrl,
 				bannerUrl: this.bannerUrl,
 				errorImageUrl: this.errorImageUrl,
+				iconImageUrl: this.iconImageUrl,
 				name: this.name,
 				description: this.description,
 				langs: this.languages.split(' '),
diff --git a/src/models/meta.ts b/src/models/meta.ts
index 9e4468032c..5351c17c52 100644
--- a/src/models/meta.ts
+++ b/src/models/meta.ts
@@ -198,6 +198,7 @@ export type IMeta = {
 	mascotImageUrl?: string;
 	bannerUrl?: string;
 	errorImageUrl?: string;
+	iconUrl?: string;
 
 	cacheRemoteFiles?: boolean;
 
diff --git a/src/server/api/endpoints/admin/update-meta.ts b/src/server/api/endpoints/admin/update-meta.ts
index 5d08a6e37e..df7520917c 100644
--- a/src/server/api/endpoints/admin/update-meta.ts
+++ b/src/server/api/endpoints/admin/update-meta.ts
@@ -69,6 +69,13 @@ export const meta = {
 			}
 		},
 
+		iconUrl: {
+			validator: $.optional.nullable.str,
+			desc: {
+				'ja-JP': 'インスタンスのアイコンURL'
+			}
+		},
+
 		name: {
 			validator: $.optional.nullable.str,
 			desc: {
@@ -356,6 +363,10 @@ export default define(meta, async (ps) => {
 		set.bannerUrl = ps.bannerUrl;
 	}
 
+	if (ps.iconUrl !== undefined) {
+		set.iconUrl = ps.iconUrl;
+	}
+
 	if (ps.name !== undefined) {
 		set.name = ps.name;
 	}
diff --git a/src/server/web/index.ts b/src/server/web/index.ts
index f83b364372..923ae69022 100644
--- a/src/server/web/index.ts
+++ b/src/server/web/index.ts
@@ -250,7 +250,10 @@ router.get('/reversi', async ctx => ctx.redirect(override(ctx.URL.pathname, 'gam
 router.get('*', async ctx => {
 	const meta = await fetchMeta();
 	await ctx.render('base', {
-		img: meta.bannerUrl
+		img: meta.bannerUrl,
+		title: meta.name,
+		desc: meta.description,
+		icon: meta.iconUrl
 	});
 	ctx.set('Cache-Control', 'public, max-age=300');
 });
diff --git a/src/server/web/views/base.pug b/src/server/web/views/base.pug
index a71f94e9c9..1d9ff635ca 100644
--- a/src/server/web/views/base.pug
+++ b/src/server/web/views/base.pug
@@ -8,17 +8,18 @@ html
 
 	head
 		meta(charset='utf-8')
-		meta(name='application-name' content='Misskey')
+		meta(name='application-name' content= title || 'Misskey')
 		meta(name='referrer' content='origin')
-		meta(property='og:site_name' content='Misskey')
+		meta(property='og:site_name' content= title || 'Misskey')
+		link(rel='icon' href= icon || '/favicon.ico')
 		link(rel='manifest' href='/manifest.json')
 
 		title
 			block title
-				| Misskey
+				= title || 'Misskey'
 
 		block desc
-			meta(name='description' content='✨🌎✨ A federated blogging platform ✨🚀✨')
+			meta(name='description' content= desc || '✨🌎✨ A federated blogging platform ✨🚀✨')
 
 		block meta