diff --git a/index.html b/index.html
index 19fa4e5..e95f4f1 100644
--- a/index.html
+++ b/index.html
@@ -6,20 +6,42 @@
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <link rel="stylesheet" as="style" crossorigin href="https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css" />
   <link rel="icon" href="/src/assets/icons/favicon.svg" />
-
   <meta charset="UTF-8" />
-  <meta name="title" content="자세공작소(ALIGNLAB) - 바른 자세 유지와 습관 형성" />
-  <meta name="description" content="자세공작소와 함께하는 일상의 변화, 바른 자세 유지와 습관 형성을 도와드려요." />
-  
-  <meta property="og:title" content="자세공작소(ALIGNLAB) - 바른 자세 유지와 습관 형성">
+
+  <!-- Korean Meta Tags -->
+  <meta name="title" content="자세공작소 | 바른 자세 유지와 습관 형성" lang="ko" />
+  <meta name="description" content="자세공작소와 함께하는 일상의 변화, 바른 자세 유지와 습관 형성을 도와드려요." lang="ko"/>
+  <meta name="keywords" content="자세, 허리, 바른자세, 자세트래킹, 목통증, 크루, 자세모니터링, 자세통계, 거북목, 턱괴기, 꼬리뼈앉기, 어깨기울기" lang="ko">
+
+  <!-- English Meta Tags -->
+  <meta name="title" content="ALIGNLAB | Maintain Proper Posture and Build Habits" lang="en" />
+  <meta name="description" content="Transform your daily life with ALIGNLAB. We help you maintain proper posture and build healthy habits." lang="en"/>
+  <meta name="keywords" content="Posture, Back, ProperPosture, PostureTracking, NeckPain, Crew, PostureMonitoring, PostureStatistics, ForwardHead, ChinResting, TailboneSitting, ShoulderTilt" lang="en">
+
+  <!-- Korean Open Graph Tags -->
+  <meta property="og:locale" content="ko_KR">
+  <meta property="og:locale:alternate" content="en_US">
+  <meta property="og:title" content="자세공작소(ALIGNLAB) | 바른 자세 유지와 습관 형성" >
   <meta property="og:description" content="자세공작소와 함께하는 일상의 변화, 바른 자세 유지와 습관 형성을 도와드려요.">
   <meta property="og:image" content="/images/og-image.png">
-  <meta property="og:image.alt" content="alignlab">
+  <meta property="og:image.alt" content="자세공작소 한국어 대표 이미지">
   <meta property="og:type" content="website">
-  <meta property="og:locale" content="ko_KR">
   <meta property="og:url" content="https://alignlab.site" />
 
-  <title>자세공작소</title>
+  <!-- English Open Graph Tags -->
+  <meta property="og:title:en_US" content="ALIGNLAB | Maintain Proper Posture and Build Habits" >
+  <meta property="og:description:en_US" content="Transform your daily life with ALIGNLAB. We help you maintain proper posture and build healthy habits.">
+  <meta property="og:image:en_US" content="/images/og-image.png">
+  <meta property="og:image.alt:en_US" content="ALIGNLAB English representative image">
+
+  <!-- Twitter Card Meta Tags -->
+  <meta name="twitter:card" content="summary_large_image" >
+  <meta name="twitter:title" content="자세공작소 | 바른 자세 유지와 습관 형성" lang="ko" >
+  <meta name="twitter:title" content="ALIGNLAB | Maintain Proper Posture and Build Habits" lang="en" >
+  <meta name="twitter:description" content="자세공작소와 함께하는 일상의 변화, 바른 자세 유지와 습관 형성을 도와드려요." lang="ko" >
+  <meta name="twitter:description" content="Transform your daily life with ALIGNLAB. We help you maintain proper posture and build healthy habits." lang="en" >
+
+  <title>자세공작소(ALIGNLAB) | 바른 자세 유지와 습관 형성</title>
 </head>
 <body>
   <div id="root"></div>
