diff --git a/data/geolocation-cn b/data/geolocation-cn
index 2d5bdab4..74cfcfd6 100644
--- a/data/geolocation-cn
+++ b/data/geolocation-cn
@@ -206,6 +206,15 @@ include:segmentfault
 include:tipdm
 include:xueyuanjun
 
+# 信息学
+hihocoder.com
+jisuanke.com
+luogu.com.cn
+oi-wiki.com
+openjudge.cn
+uoj.ac
+vijos.org
+
 # Tech companies & Orginations
 include:alibaba
 include:b3log