diff --git a/internal/handlers/cv_text.go b/internal/handlers/cv_text.go
index 3c1d521..6ba76d5 100644
--- a/internal/handlers/cv_text.go
+++ b/internal/handlers/cv_text.go
@@ -152,6 +152,8 @@ func (h *CVHandler) PlainText(w http.ResponseWriter, r *http.Request) {
 	// Set response headers
 	w.Header().Set(c.HeaderContentType, c.ContentTypePlainText)
 	w.Header().Set(c.HeaderXContentTypeOpts, c.NoSniff)
+	w.Header().Set("X-Robots-Tag", "noindex, nofollow")
+	w.Header().Set("Link", `<https://juan.andres.morenorub.io/?lang=`+langCode+`>; rel="canonical"`)
 
 	// Check if download is requested
 	if r.URL.Query().Get("download") == "true" {
diff --git a/static/robots.txt b/static/robots.txt
index 50a2b32..43e6c22 100644
--- a/static/robots.txt
+++ b/static/robots.txt
@@ -13,6 +13,10 @@ Disallow: /api/internal/
 Disallow: /.git/
 Disallow: /.env
 
+# Plain text version — prevent duplicate content indexing
+# Canonical HTML version at / should be indexed instead
+Disallow: /text
+
 # =============================================================================
 # SITEMAPS & AI CONTENT
 # =============================================================================
diff --git a/static/sitemap.xml b/static/sitemap.xml
index 52fddd3..05c8398 100644
--- a/static/sitemap.xml
+++ b/static/sitemap.xml
@@ -5,7 +5,7 @@
   <!-- English Version -->
   <url>
     <loc>https://juan.andres.morenorub.io/?lang=en</loc>
-    <lastmod>2024-10-18</lastmod>
+    <lastmod>2026-04-09</lastmod>
     <changefreq>monthly</changefreq>
     <priority>1.0</priority>
     <xhtml:link rel="alternate" hreflang="es" href="https://juan.andres.morenorub.io/?lang=es"/>
@@ -15,7 +15,7 @@
   <!-- Spanish Version -->
   <url>
     <loc>https://juan.andres.morenorub.io/?lang=es</loc>
-    <lastmod>2024-10-18</lastmod>
+    <lastmod>2026-04-09</lastmod>
     <changefreq>monthly</changefreq>
     <priority>1.0</priority>
     <xhtml:link rel="alternate" hreflang="es" href="https://juan.andres.morenorub.io/?lang=es"/>
@@ -25,7 +25,7 @@
   <!-- Default (redirects to English) -->
   <url>
     <loc>https://juan.andres.morenorub.io/</loc>
-    <lastmod>2024-10-18</lastmod>
+    <lastmod>2026-04-09</lastmod>
     <changefreq>monthly</changefreq>
     <priority>0.9</priority>
   </url>
@@ -33,7 +33,7 @@
   <!-- Health Check Endpoint -->
   <url>
     <loc>https://juan.andres.morenorub.io/health</loc>
-    <lastmod>2024-10-18</lastmod>
+    <lastmod>2026-04-09</lastmod>
     <changefreq>daily</changefreq>
     <priority>0.3</priority>
   </url>