Describes the cause and action for error messages.
Error Message(English)：
fastly error unknown domain github.com
registry.npmjs.org host 151.101.36.162 is down ・ Issue ... - GitHub
https://github.com/npm/npm/issues/20817
curl response ・ GitHub
https://gist.github.com/marcdavi-es/1e3d183333423c85aa4baf086f27e26f
500 Internal Server Error ・ Issue #20818 ・ npm/npm ・ GitHub
https://github.com/npm/npm/issues/20818
Connection to IP on Firefox startup ・ Issue #1065 ・ EFForg ... - GitHub
https://github.com/EFForg/privacybadger/issues/1065
Domain not found during npm install ・ Issue #20792 ・ npm/npm ・ GitHub
https://github.com/npm/npm/issues/20792
Troubleshooting custom domains - GitHub Help
https://help.github.com/en/articles/troubleshooting-custom-domains
Fastly ・ Issue #2 ・ antichown/subdomain-takeover ・ GitHub
https://github.com/antichown/subdomain-takeover/issues/2
Damian Janowski on Twitter: "https://t.co/0r3Ep6cER4 "Fastly error ...
https://twitter.com/djanowski/status/774416208812707840
npm install -g npm returns registry error parsing - Stack Overflow
https://stackoverflow.com/questions/52127731/npm-install-g-npm-returns-registry-error-parsing