diff --git a/packages/backend/src/server/web/ClientServerService.ts b/packages/backend/src/server/web/ClientServerService.ts
index 50b23a0682..12369c927c 100644
--- a/packages/backend/src/server/web/ClientServerService.ts
+++ b/packages/backend/src/server/web/ClientServerService.ts
@@ -35,8 +35,8 @@ import { RoleService } from '@/core/RoleService.js';
 import manifest from './manifest.json' assert { type: 'json' };
 import { FeedService } from './FeedService.js';
 import { UrlPreviewService } from './UrlPreviewService.js';
-import type { FastifyInstance, FastifyPluginOptions, FastifyReply } from 'fastify';
 import { ClientLoggerService } from './ClientLoggerService.js';
+import type { FastifyInstance, FastifyPluginOptions, FastifyReply } from 'fastify';
 
 const _filename = fileURLToPath(import.meta.url);
 const _dirname = dirname(_filename);
@@ -423,6 +423,10 @@ export class ClientServerService {
 					: [];
 
 				reply.header('Cache-Control', 'public, max-age=15');
+				if (profile.preventAiLarning) {
+					reply.header('X-Robots-Tag', 'noimageai');
+					reply.header('X-Robots-Tag', 'noai');
+				}
 				return await reply.view('user', {
 					user, profile, me,
 					avatarUrl: user.avatarUrl ?? this.userEntityService.getIdenticonUrl(user),
@@ -467,6 +471,10 @@ export class ClientServerService {
 				const profile = await this.userProfilesRepository.findOneByOrFail({ userId: note.userId });
 				const meta = await this.metaService.fetch();
 				reply.header('Cache-Control', 'public, max-age=15');
+				if (profile.preventAiLarning) {
+					reply.header('X-Robots-Tag', 'noimageai');
+					reply.header('X-Robots-Tag', 'noai');
+				}
 				return await reply.view('note', {
 					note: _note,
 					profile,
@@ -506,6 +514,10 @@ export class ClientServerService {
 				} else {
 					reply.header('Cache-Control', 'private, max-age=0, must-revalidate');
 				}
+				if (profile.preventAiLarning) {
+					reply.header('X-Robots-Tag', 'noimageai');
+					reply.header('X-Robots-Tag', 'noai');
+				}
 				return await reply.view('page', {
 					page: _page,
 					profile,
@@ -530,6 +542,10 @@ export class ClientServerService {
 				const profile = await this.userProfilesRepository.findOneByOrFail({ userId: flash.userId });
 				const meta = await this.metaService.fetch();
 				reply.header('Cache-Control', 'public, max-age=15');
+				if (profile.preventAiLarning) {
+					reply.header('X-Robots-Tag', 'noimageai');
+					reply.header('X-Robots-Tag', 'noai');
+				}
 				return await reply.view('flash', {
 					flash: _flash,
 					profile,
@@ -554,6 +570,10 @@ export class ClientServerService {
 				const profile = await this.userProfilesRepository.findOneByOrFail({ userId: clip.userId });
 				const meta = await this.metaService.fetch();
 				reply.header('Cache-Control', 'public, max-age=15');
+				if (profile.preventAiLarning) {
+					reply.header('X-Robots-Tag', 'noimageai');
+					reply.header('X-Robots-Tag', 'noai');
+				}
 				return await reply.view('clip', {
 					clip: _clip,
 					profile,
@@ -576,6 +596,10 @@ export class ClientServerService {
 				const profile = await this.userProfilesRepository.findOneByOrFail({ userId: post.userId });
 				const meta = await this.metaService.fetch();
 				reply.header('Cache-Control', 'public, max-age=15');
+				if (profile.preventAiLarning) {
+					reply.header('X-Robots-Tag', 'noimageai');
+					reply.header('X-Robots-Tag', 'noai');
+				}
 				return await reply.view('gallery-post', {
 					post: _post,
 					profile,