diff --git a/public/index.html b/public/index.html
index 642109d..ed1ecf9 100644
--- a/public/index.html
+++ b/public/index.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html>
 <html lang="en">
-    <head>
+    <head profile="https://gmpg.org/xfn/11">
         <meta charset="UTF-8">
         <meta name="referrer" content="no-referrer">
         <link rel="icon" href="/avatar.svg" type="image/svg+xml;charset=UTF-8">
diff --git a/public/xhr.html b/public/xhr.html
index 84e4c41..a15df3b 100644
--- a/public/xhr.html
+++ b/public/xhr.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html>
 <html lang="en">
-    <head>
+    <head profile="https://gmpg.org/xfn/11">
         <meta charset="UTF-8">
         <meta name="referrer" content="no-referrer">
         <link rel="icon" href="/avatar.svg" type="image/svg+xml;charset=UTF-8">
