diff --git a/public/robots.txt b/public/robots.txt
index 1f53798..553ac83 100644
--- a/public/robots.txt
+++ b/public/robots.txt
@@ -1,2 +1,4 @@
 User-agent: *
-Disallow: /
+Allow: /
+
+Sitemap: https://astro-ink.vercel.app/sitemap-index.xml
\ No newline at end of file
diff --git a/src/components/BaseHead.astro b/src/components/BaseHead.astro
index c449140..2dbb178 100644
--- a/src/components/BaseHead.astro
+++ b/src/components/BaseHead.astro
@@ -33,6 +33,7 @@ const { title = SITE.title, description, permalink, image } = Astro.props;
   sizes="16x16"
   href="/favicon-16x16.png"
 />
+<link rel="sitemap" href="/sitemap-index.xml" />
 <link rel="manifest" href="/site.webmanifest" />
 <link rel="mask-icon" href="/safari-pinned-tab.svg" color="#5bbad5" />
 
diff --git a/src/components/SearchModal.svelte b/src/components/SearchModal.svelte
index 7a46e31..c261d87 100644
--- a/src/components/SearchModal.svelte
+++ b/src/components/SearchModal.svelte
@@ -21,10 +21,10 @@
 {/if}
 <style>
     .modal {
-        @apply absolute top-0 left-0 w-full h-full grid justify-center content-center pointer-events-none;
+        @apply fixed top-0 left-0 w-full h-full grid justify-center content-center pointer-events-none;
     }
     .modal__backdrop {
-        @apply absolute top-0 left-0 w-full h-screen opacity-50 bg-gradient-to-tr from-fuchsia-600 to-fuchsia-900 z-0;
+        @apply fixed top-0 left-0 w-full h-screen opacity-50 bg-gradient-to-tr from-fuchsia-600 to-fuchsia-900 z-0;
     }
     .modal__cnt {
         @apply w-full z-10 pointer-events-auto;
diff --git a/src/pages/tags/[tag]/[page].astro b/src/pages/tags/[tag]/[page].astro
index 779c458..efa6d4b 100644
--- a/src/pages/tags/[tag]/[page].astro
+++ b/src/pages/tags/[tag]/[page].astro
@@ -14,7 +14,7 @@ export async function getStaticPaths({ paginate }) {
   const allPosts = await getCollection('blog')
   const allTags = new Set<string>()
   allPosts.map(post => {
-      post.data.tags && post.data.tags.map(tag => allTags.add(tag.toLowerCase()))
+      post.data.tags && post.data.tags.map(tag => allTags.add(tag))
   })
 
   return Array.from(allTags).flatMap((tag) => {
diff --git a/src/pages/tags/[tag]/index.astro b/src/pages/tags/[tag]/index.astro
index a1bff67..4003e88 100644
--- a/src/pages/tags/[tag]/index.astro
+++ b/src/pages/tags/[tag]/index.astro
@@ -9,7 +9,7 @@ export async function getStaticPaths({ }) {
   const allPosts = await getCollection('blog')
   const allTags = new Set()
   allPosts.map(post => {
-      post.data.tags && post.data.tags.map(tag => allTags.add(tag.toLowerCase()))
+      post.data.tags && post.data.tags.map(tag => allTags.add(tag))
   })
 
   return Array.from(allTags).map((tag) => {
diff --git a/tsconfig.json b/tsconfig.json
index 3a10c41..0a7e6f1 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -20,5 +20,5 @@
       "types": ["astro/env"],
       "strictNullChecks": true
     },
-    "include": ["src/**/*.d.ts", "src/**/*.js", "src/**/*.ts"],
+    "include": ["src/**/*.d.ts", "src/**/*.js", "src/**/*.ts", "src/pages/rss.xml.js"],
 }