xip.name
The service was shut down on 2021-05-17 after Google marked the entire domain as “Social engineering content” since (working as intended) you could link to for example http://1.1.1.1.xip.name/ and getting redirected to http://1.1.1.1/
A simple wildcard DNS inspired by xip.io (which seems to have been shut down now)
10.0.0.1.xip.name resolves to 10.0.0.1
www.10.0.0.2.xip.name resolves to 10.0.0.2
foo.10.0.0.3.xip.name resolves to 10.0.0.3
bar.baz.10.0.0.4.xip.name resolves to 10.0.0.4How does it work?
xip.name runs a custom Domain Name Server which extracts any IP address found in the requested domain name and sends it back in the response.
Credits
xip.name is built on top of Miek’s lovely dns package for Go.