Reminder that the only safe dummy domains to use are:
- example.com
- example.net
- example.org
And nowadays there's also a safe dummy TLD: .example
These are safe because they are reserved by IANA as as special-use domain names for documentation purposes on direction of IETF in RFC 2606 and RFC 6761.
Any other domain can be registered and as such should _never_ be used as a dummy domain for documentation or as eg. an example in default configs.
@voxpelli Funny story, I worked for a company called Canadian Bank Note and they used *.cbn as an internal TLD.
It was super fun when Christian Broadcast Network bought and released the now public *.cbn TLD.
@Routhinator Oh no 😂
We used to use *.dev as an internal TLD back when I worked with PHP and Apache and needed virtual hosts, but that changed when Google bought that and made it a public TLD.
There has been some work on getting *.internal reserved for such uses: https://github.com/wkumari/draft-wkumari-dnsop-internal/issues/6
Pelle Wessman
Chris Routh (He/Him)