1) Australian Computing Research & Education (CORE, 2020): A (top 19%)

http://portal.core.edu.au/conf-ranks/?search=ISSRE&;by=all&source=CORE2020&sort=atitle&page=1

2) Chinese Computer Federation (CCF, 2019): B

https://www.ccf.org.cn/Academic_Evaluation/TCSE_SS_PDL/

B rank: Very famous and important international conference with significant impact, encourage Chinese scholars to submit papers