www.amazon.co.jp blocked

I think this is due to threat intelligence feed. 

I checked "https://github.com/nextdns/metadata/blob/master/security/threat-intelligence-feeds.json" and found that "https://raw.githubusercontent.com/olbat/ut1-blacklists/master/blacklists/malware/domains" blocks www.amazon.co.jp's CNAME which is dtioykqj1u8de.cloudfront.net at this moment.

I just manually added "dtioykqj1u8de.cloudfront.net" to allow list and the problem is resolved.

Now I'm trying to figure out how to contact the maintainer of this malware domain list...

https://github.com/olbat/ut1-blacklists/tree/master/blacklists/malware

and the list seems to be updated and it is all good!