diff --git a/src/generators/html.cpp b/src/generators/html.cpp
index 2ac3eb5..c8b6fe2 100644
--- a/src/generators/html.cpp
+++ b/src/generators/html.cpp
@@ -85,6 +85,7 @@ void write_html(ostream &out, const vector<entry_type> &entries)
   <head>
     <title>FediBlock prototype</title>
     <meta charset="utf-8">
+    <meta name="robots" content="noindex, nofollow">
   </head>
   <body>
     <h1>Blocklist</h1>
