diff --git a/layouts/_partials/head/meta.html b/layouts/_partials/head/meta.html
index 06bbbf0..399cbf6 100644
--- a/layouts/_partials/head/meta.html
+++ b/layouts/_partials/head/meta.html
@@ -98,6 +98,11 @@
 <meta name="twitter:url" content="{{ .Permalink }}" />
 <meta property="og:url" content="{{ .Permalink }}" />
 
+<!-- AT Proto URI standard.site -->
+{{ with .Page.Params.atUri }}
+<link rel="site.standard.document" href="{{ safeURL . }}">
+{{ . }}
+
 <!-- Date Tags -->
 <meta property="og:updated_time" content="{{ .Lastmod.Format "2006-01-02T15:04:05Z07:00" }}" />