diff --git a/public/apple-touch-icon.png b/public/apple-touch-icon.png
new file mode 100644
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diff --git a/src/layouts/Layout.astro b/src/layouts/Layout.astro
index e408cef..07a77f2 100644
--- a/src/layouts/Layout.astro
+++ b/src/layouts/Layout.astro
@@ -4,7 +4,7 @@ import Navbar from "@components/Navbar.astro";
 import "../styles/global.scss";
 import type { ImageMetadata } from "astro";
 import type { BlogData } from "src/content.config";
-import { getLocaleFromUrl, useTranslatedPaths } from "@i18n";
+import { getLocaleFromUrl, useTranslatedPaths, useTranslations } from "@i18n";
 
 type Props = {
   title: string;
@@ -17,6 +17,7 @@ type Props = {
 const { title, description, image, post, index = true } = Astro.props;
 
 const lang = getLocaleFromUrl(Astro.url);
+const t = useTranslations(lang);
 const translatePaths = useTranslatedPaths(lang);
 ---
 
@@ -47,7 +48,7 @@ const translatePaths = useTranslatedPaths(lang);
     <!-- search engine indexing -->
     <meta
       name="”robots”"
-      content={index ? "”follow,index”" : "”nofollow,noindex”"}
+      content={index ? "follow,index" : "nofollow,noindex"}
     />
     <link rel="canonical" href={Astro.url.href} />
     <link rel="sitemap" href="/sitemap-index.xml" />
@@ -63,7 +64,7 @@ const translatePaths = useTranslatedPaths(lang);
     <!-- theming/icons -->
     <meta property="theme-color" content="#2850de" />
 
-    <!-- <link rel="apple-touch-icon" href="" /> -->
+    <link rel="apple-touch-icon" href="/apple-touch-icon.png" />
     <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
 
     <!-- image -->
@@ -72,7 +73,11 @@ const translatePaths = useTranslatedPaths(lang);
         <>
           <meta name="image" content={image.src} />
           <meta property="og:image" content={image.src} />
+          <meta property="og:image:width" content={image.width.toString()} />
+          <meta property="og:image:height" content={image.height.toString()} />
           <meta name="twitter:image" content={image.src} />
+          <meta name="twitter:image:width" content={image.width.toString()} />
+          <meta name="twitter:image:height" content={image.height.toString()} />
           <meta name="twitter:card" content="summary_large_image" />
         </>
       )
@@ -83,13 +88,19 @@ const translatePaths = useTranslatedPaths(lang);
       post && (
         <>
           <meta name="byl" content="By Clément Voisin" />
-          <meta name="article:author" content="Clément Voisin" />
           <meta name="pubdate" content={post.createdAt.toISOString()} />
+          <meta property="article:author" content="Clément Voisin" />
           <meta
             property="article:published_time"
             content={post.createdAt.toISOString()}
           />
-          <meta property="article:section" content="Blog" />
+          {post.lastEditedAt &&
+            <meta
+              property="article:modified_time"
+              content={post.lastEditedAt.toISOString()}
+            />
+          }
+          <meta property="article:section" content={t(`blog.category.${post.category}`)} />
           {/* <link
             rel="alternate"
             type="application/json+oembed"
@@ -102,14 +113,20 @@ const translatePaths = useTranslatedPaths(lang);
 
     <!-- language alternates -->
     {
-      ["en-us", "fr-fr"].map((l) => (
-        <link
+      ["en-us", "fr-fr"].map((l) => {
+        const [language, territory] = l.split("-");
+        
+        return (
+          <link
           rel="alternate"
           hreflang={l}
-          href={`${Astro.url.origin}/${translatePaths(Astro.url.pathname, l.split("-")[0])}`}
-        />
-      ))
+          href={`${Astro.url.origin}${translatePaths(Astro.url.pathname, language)}`}
+          />
+          <meta property={`og:locale${language === lang ? '' : ':alternate'}`} content={`${language}_${territory.toUpperCase()}`} />
+      )}
+    )
     }
+    
   </head>
 
   <body>