diff --git a/app/app.vue b/app/app.vue
index 15827d6..61ed4b8 100644
--- a/app/app.vue
+++ b/app/app.vue
@@ -1,4 +1,6 @@
 <script setup lang="ts">
+import { killianPerson } from '~/utils/seo-person'
+
 const { locale } = useI18n()
 const head = useLocaleHead({ seo: true })
 
@@ -7,6 +9,14 @@ useHead({
   link: computed(() => head.value.link || []),
   meta: computed(() => head.value.meta || []),
 })
+
+useSchemaOrg([
+  definePerson(killianPerson),
+  defineWebSite({
+    name: "Killian' Dal-Cin — Hytale Plugin Developer",
+    inLanguage: ['fr-FR', 'en-US'],
+  }),
+])
 </script>
 
 <template>
diff --git a/app/utils/seo-person.ts b/app/utils/seo-person.ts
new file mode 100644
index 0000000..df55ff5
--- /dev/null
+++ b/app/utils/seo-person.ts
@@ -0,0 +1,18 @@
+/**
+ * Global Person identity for schema.org (Killian Dal-Cin).
+ * Consumed by: app/app.vue (definePerson global) and app/pages/blog/[slug].vue (author/publisher @id ref).
+ * Derives URLs from siteConfig — single source of truth.
+ */
+import { siteConfig } from '~/data/site'
+
+export const KILLIAN_PERSON_ID = '#killian'
+
+export const killianPerson = {
+  '@id': KILLIAN_PERSON_ID,
+  name: "Killian' Dal-Cin",
+  url: siteConfig.url,
+  jobTitle: siteConfig.jobTitle,
+  sameAs: siteConfig.social
+    .filter((s) => s.name !== 'Email')
+    .map((s) => s.url),
+} as const
diff --git a/nuxt.config.ts b/nuxt.config.ts
index aa80a2a..cab589d 100644
--- a/nuxt.config.ts
+++ b/nuxt.config.ts
@@ -9,6 +9,7 @@ export default defineNuxtConfig({
     '@nuxt/eslint',
     '@nuxtjs/i18n',
     '@nuxtjs/sitemap',
+    'nuxt-schema-org',
     'nuxt-gtag',
   ],
   components: [
@@ -31,6 +32,9 @@ export default defineNuxtConfig({
     url: 'https://killiandalcin.fr',
     name: "Killian' DAL-CIN - Developpeur Full Stack",
   },
+  sitemap: {
+    sources: ['/api/__sitemap__/urls'],
+  },
   i18n: {
     strategy: 'prefix',
     defaultLocale: 'fr',