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Dangers of placeholder domains
Post Reply RetroFed Forums Forum Index » Sysadmin
AuthorMessage
wewbull
feddit.uk
wewbull@feddit.uk
Joined: 2023-06-22
Posted:   Subject: Dangers of placeholder domains Quote
Link: https://infosec.exchange/@SecureOwl/116404712213309413

Great example of why using placeholders like xxx@deleteduser.com is a bad idea.
17   Original
slazer2au
lemmy.world
slazer2au@lemmy.world
Joined: 2023-06-30
#2 Posted:   Subject: Re: Dangers of placeholder domains Quote Reply

Apart from example.com are their any documentation only domains?

Credit cards have test numbers, IP addresses have TEST-NET1,2,and 3 for ipv4 and 2001:db8:: for V6.
8
einkorn
feddit.org

einkorn@feddit.org
Joined: 2024-06-21
#3 Posted:   Subject: Re: Dangers of placeholder domains Quote Reply

There was a talk at 39C3 about abandoned (German) government domains (scroll down for an English audio track).
1
frongt
lemmy.zip
frongt@lemmy.zip
Joined: 2025-07-31
#4 Posted:   Subject: Re: Dangers of placeholder domains Quote Reply
slazer2au wrote:
Apart from example.com are their any documentation only domains? Credit cards have test numbers, IP addresses have TEST-NET1,2,and 3 for ipv4 and 2001:db8:: for V6.

https://www.iana.org/assignments/special-use-domain-names/special-use-domain-names.xhtml
7
slazer2au
lemmy.world
slazer2au@lemmy.world
Joined: 2023-06-30
#5 Posted:   Subject: Re: Dangers of placeholder domains Quote Reply
frongt wrote:
https://www.iana.org/assignments/special-use-domain-names/special-use-domain-names.xhtml

.onion or arpa are good ones.
1
SkaveRat
discuss.tchncs.de
SkaveRat@discuss.tchncs.de
Joined: 2023-07-09
#6 Posted:   Subject: Re: Dangers of placeholder domains Quote Reply
slazer2au wrote:
Apart from example.com are their any documentation only domains? Credit cards have test numbers, IP addresses have TEST-NET1,2,and 3 for ipv4 and 2001:db8:: for V6.

example.net and example.org
6
hactar42
lemmy.world
hactar42@lemmy.world
Joined: 2023-06-12
#7 Posted:   Subject: Re: Dangers of placeholder domains Quote Reply

That's why I stick with contoso and fabrikam.
1
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