Life & fun · September 28, 2023
Backname.io – every IP address gets its own domain
I was setting up tests involving DNS resolution recently, where something like 127.0.0.1.service.foo would have been tremendously useful. Back in the day, I'd have used xip.io - but sadly that service died. Well, every excuse is a good one when it comes to writing a DNS server! Backname.io joins nip.io and sslip.io in the wildcard DNS game.
In plain words
Backname.io is a wildcard DNS service that automatically resolves IP addresses embedded in domain names to those addresses. Developers and testers use it to set up DNS resolution testing without manual configuration—for example, 127.0.0.1.service.foo resolves to 127.0.0.1. It serves as a replacement for the defunct xip.io service and operates similarly to nip.io and sslip.io.
written from the facts on this page · September 2026
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