diff --git a/robots.txt b/robots.txt
new file mode 100644
index 0000000..831620b
--- /dev/null
+++ b/robots.txt
@@ -0,0 +1,3 @@
+User-agent: *
+Disallow:
+Sitemap: https://gong.gp/sitemap.xml
diff --git a/sitemap.xml b/sitemap.xml
new file mode 100644
index 0000000..3d946d6
--- /dev/null
+++ b/sitemap.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+  <url>
+    <loc>https://gong.gp</loc>
+  </url>
+</urlset>
\ No newline at end of file