diff --git a/layouts/partials/extended_head.html b/layouts/partials/extended_head.html
index 567fc01..ec1e9cd 100644
--- a/layouts/partials/extended_head.html
+++ b/layouts/partials/extended_head.html
@@ -1,2 +1,6 @@
 <script async src="//busuanzi.ibruce.info/busuanzi/2.3/busuanzi.pure.mini.js"></script>
-<style type="text/css">body {font-weight: unset !important;font-family: -apple-system, "Noto Sans", "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Source Han Sans SC", "Source Han Sans CN", "Microsoft YaHei", "Wenquanyi Micro Hei", "WenQuanYi Zen Hei", "ST Heiti", SimHei, "WenQuanYi Zen Hei Sharp", sans-serif !important;}</style>
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+<style type="text/css">body {font-weight: unset !important;font-family: -apple-system, "Noto Sans", "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Source Han Sans SC", "Source Han Sans CN", "Microsoft YaHei", "Wenquanyi Micro Hei", "WenQuanYi Zen Hei", "ST Heiti", SimHei, "WenQuanYi Zen Hei Sharp", sans-serif !important;}</style>
+<meta http-equiv="x-dns-prefetch-control" content="on">
+<link rel="dns-prefetch" href="//api.github.com" />
+<link rel="icon" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22>
+    <text y=%22.9em%22 font-size=%2290%22>👋</text></svg>">
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