Configure a Chinese domain name for nginx

I started to configure a Chinese domain name that was directly written, but I couldn't parse the correct server. Then google finally found the reason. When I typed www in the browser. moon blog. com, the browser will convert to www.xn--9kRq6Qw2Iu2A.com
In fact, a Chinese domain name is an encoded English domain name (Chinese domain name --> punycode code --> English domain name)
Chinese domain name transcoding online conversion address http://www.cnkuai.cn/zhuanma.asp? Act = save
Configuration:

Listen 80; server_name www.xn--9kRq6Qw2Iu2A.com; index index.html;