diff --git a/_Footer.md b/_Footer.md
index 3cbf17c..4a0ee34 100644
--- a/_Footer.md
+++ b/_Footer.md
@@ -2,4 +2,6 @@ Buy me a beer, Donate to **acme.sh** if it saves your time. Your donation makes
 
 如果 acme.sh 帮你节省了时间,请考虑赏我一杯咖啡, 捐助: https://donate.acme.sh/
 你的支持将会使得 **acme.sh** 越来越好.
-感谢
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+感谢
+
+StaticIP.io DDNS [dynamic IP to static IP Address](https://staticIP.io/).
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