“dns.toys is a DNS server that takes creative liberties with the DNS protocol to offer handy utilities and services that are easily accessible via the command line.”
Type dig mumbai.weather @dns.toys and the weather comes back in a TXT record. Time zones, unit conversion and currency rates work the same way. No app, no account, no tracking pixel. Every SaaS that wants a login to tell you the time should be embarrassed by a protocol from 1983.