Hi, I can provide more details, the error message was from Azure CDN Pop in "KHH" (Kaohsiung). So traffic through this PoP may got 504 Gateway Timeout Error. Other PoP like "TPE" (Taipei) still works.
```
$ curl -sSD - -o /dev/null https://www.minecraft.net/en-us/
HTTP/2 504
content-type: text/html
date: Tue, 03 Dec 2019 15:06:34 GMT
server: ECAcc (khh/CD1C)
content-length: 357
```
It works here! Thank you very much.
```
$ curl -sSD - -o /dev/null https://www.minecraft.net/en-us/
HTTP/2 200
age: 710
cache-control: public, max-age=300
content-type: text/html;charset=utf-8
date: Wed, 29 Jan 2020 07:44:51 GMT
last-modified: Wed, 29 Jan 2020 07:33:02 GMT
server: ECAcc (khh/CD1C)
strict-transport-security: max-age=31536000; includeSubDomains
vary: Accept-Encoding
x-cache: HIT
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
x-frame-options: SAMEORIGIN
content-length: 323794
```