diff --git a/TaxBaik.Web/Pages/_Layout.cshtml b/TaxBaik.Web/Pages/_Layout.cshtml
index 021f4d4..9463b77 100644
--- a/TaxBaik.Web/Pages/_Layout.cshtml
+++ b/TaxBaik.Web/Pages/_Layout.cshtml
@@ -3,21 +3,57 @@
 <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>@(ViewData["Title"] ?? "백원숙 세무회계")</title>
-    <meta name="description" content="@(ViewData["Description"] ?? "사업자 기장, 부동산 양도세·증여세, 종합소득세 전문 상담.")" />
-    <meta property="og:title" content="@ViewData["Title"]" />
-    <meta property="og:description" content="@ViewData["Description"]" />
-    <meta property="og:image" content="@ViewData["OgImage"]" />
-    <meta property="og:url" content="@ViewData["OgUrl"]" />
+    <title>@(ViewData["Title"] ?? "백원숙 세무회계 - 세무사 전문 상담")</title>
+    <meta name="description" content="@(ViewData["Description"] ?? "백원숙 세무회계 - 사업자 기장, 부동산 양도세·증여세, 종합소득세 전문 상담. 맞춤형 세무 절세 컨설팅 제공.")" />
+    <meta name="keywords" content="백원숙 세무회계, 세무사, 사업자 기장, 양도소득세, 증여세, 상속세, 종합소득세, 절세 상담, 세무 대리" />
+    
+    <!-- Open Graph / Facebook -->
+    <meta property="og:type" content="website" />
+    <meta property="og:title" content="@(ViewData["Title"] ?? "백원숙 세무회계 - 세무사 전문 상담")" />
+    <meta property="og:description" content="@(ViewData["Description"] ?? "백원숙 세무회계 - 사업자 기장, 부동산 양도세·증여세, 종합소득세 전문 상담. 맞춤형 세무 절세 컨설팅 제공.")" />
+    <meta property="og:image" content="@(ViewData["OgImage"] ?? "http://178.104.200.7/taxbaik/images/og-image.jpg")" />
+    <meta property="og:url" content="@(ViewData["OgUrl"] ?? "http://178.104.200.7/taxbaik/")" />
+    
+    <!-- Twitter -->
+    <meta property="twitter:card" content="summary_large_image" />
+    <meta property="twitter:title" content="@(ViewData["Title"] ?? "백원숙 세무회계 - 세무사 전문 상담")" />
+    <meta property="twitter:description" content="@(ViewData["Description"] ?? "백원숙 세무회계 - 사업자 기장, 부동산 양도세·증여세, 종합소득세 전문 상담. 맞춤형 세무 절세 컨설팅 제공.")" />
+    <meta property="twitter:image" content="@(ViewData["OgImage"] ?? "http://178.104.200.7/taxbaik/images/og-image.jpg")" />
+
+    <!-- 검색엔진 등록용 소유권 인증 메타 태그 (발급받으신 토큰이 있으면 아래 content에 넣어 주시면 됩니다) -->
+    <!-- <meta name="naver-site-verification" content="네이버_서치어드바이저_토큰_입력" /> -->
+    <!-- <meta name="google-site-verification" content="구글_서치콘솔_토큰_입력" /> -->
+
     <meta name="robots" content="index, follow" />
     <meta name="theme-color" content="#C89D6E" />
     <link rel="preconnect" href="https://fonts.googleapis.com" />
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
     <link rel="dns-prefetch" href="https://cdn.jsdelivr.net" />
     <link href="https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;500;700&display=swap" rel="stylesheet" />
-    <link rel="canonical" href="@ViewData["CanonicalUrl"]" />
+    <link rel="canonical" href="@(ViewData["CanonicalUrl"] ?? "http://178.104.200.7/taxbaik/")" />
     <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet" />
     <link rel="stylesheet" href="~/css/site.css" asp-append-version="true" />
+
+    <!-- 구조화된 데이터 (JSON-LD Schema Markup) -->
+    <script type="application/ld+json">
+    {
+      "@@context": "https://schema.org",
+      "@@type": "ProfessionalService",
+      "name": "백원숙 세무회계",
+      "description": "사업자 기장, 부동산 양도세·증여세, 종합소득세 전문 상담 세무사",
+      "url": "http://178.104.200.7/taxbaik/",
+      "telephone": "010-4122-8268",
+      "email": "taxbaik5668@gmail.com",
+      "address": {
+        "@@type": "PostalAddress",
+        "addressCountry": "KR"
+      },
+      "sameAs": [
+        "https://www.instagram.com/taxtory5668/",
+        "http://pf.kakao.com/_xoxchTX"
+      ]
+    }
+    </script>
 </head>
 <body class="with-mobile-cta">
     <partial name="_Header" />
diff --git a/TaxBaik.Web/wwwroot/sitemap.xml b/TaxBaik.Web/wwwroot/sitemap.xml
new file mode 100644
index 0000000..a07910c
--- /dev/null
+++ b/TaxBaik.Web/wwwroot/sitemap.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+  <!-- 메인 홈 -->
+  <url>
+    <loc>http://178.104.200.7/taxbaik/</loc>
+    <lastmod>2026-06-29</lastmod>
+    <changefreq>daily</changefreq>
+    <priority>1.0</priority>
+  </url>
+  <!-- 고객 포털 -->
+  <url>
+    <loc>http://178.104.200.7/taxbaik/portal</loc>
+    <lastmod>2026-06-29</lastmod>
+    <changefreq>weekly</changefreq>
+    <priority>0.8</priority>
+  </url>
+  <!-- 이용약관 -->
+  <url>
+    <loc>http://178.104.200.7/taxbaik/terms</loc>
+    <lastmod>2026-06-29</lastmod>
+    <changefreq>monthly</changefreq>
+    <priority>0.3</priority>
+  </url>
+  <!-- 개인정보처리방침 -->
+  <url>
+    <loc>http://178.104.200.7/taxbaik/privacy</loc>
+    <lastmod>2026-06-29</lastmod>
+    <changefreq>monthly</changefreq>
+    <priority>0.3</priority>
+  </url>
+</urlset>
