diff --git a/sitemap.xml b/sitemap.xml
new file mode 100644
index 0000000..e3aa522
--- /dev/null
+++ b/sitemap.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+  <urlset
+      xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
+      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+      xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9
+        http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd">
+  <url>
+    <loc>https://bitpatty.github.io/gctGenerator/</loc>
+    <lastmod>2017-11-10T08:07:19+00:00</lastmod>
+    <changefreq>daily</changefreq>
+    <priority>1.00</priority>
+  </url>
+  <url>
+    <loc>https://bitpatty.github.io/gctGenerator/index.html</loc>
+    <lastmod>2017-11-10T08:07:19+00:00</lastmod>
+    <changefreq>daily</changefreq>
+    <priority>1.00</priority>
+  </url>
+  <url>
+    <loc>https://bitpatty.github.io/gctGenerator/guide.html</loc>
+    <lastmod>2017-11-10T08:07:19+00:00</lastmod>
+    <changefreq>daily</changefreq>
+    <priority>0.80</priority>
+  </url>
+  <url>
+    <loc>https://bitpatty.github.io/gctGenerator/changelog.html</loc>
+    <lastmod>2017-11-10T08:07:19+00:00</lastmod>
+    <changefreq>daily</changefreq>
+    <priority>0.64</priority>
+  </url>
+</urlset>