diff --git a/lib/domains/kr/hs/sshs.txt b/lib/domains/kr/hs/sshs.txt
index 551e6b213c..18b157b3ea 100644
--- a/lib/domains/kr/hs/sshs.txt
+++ b/lib/domains/kr/hs/sshs.txt
@@ -1,2 +1,7 @@
 Seoul Science High School
 서울과학고등학교
+
+official website(Korean): https://sshs.sen.hs.kr/
+official website(English): http://en.sshs.hs.kr/html/index.php
+curriculum: download "2022교육계획서_서울과학고(0421).pdf" at https://sshs.sen.hs.kr/120316/subMenu.do. Then, look at the page 26.
+proof of official domain(screenshot): https://drive.google.com/file/d/18r7TRVlMpuGLb7Dgfif3kFZ9FZurm0Jp/view?usp=sharing