Auth tokens may be specified for one of the following:
- `abc123@deno.land`: `deno.land`, `www.deno.land`, etc
- `abc123@deno.land:8080`: `deno.land:8080`, `www.deno.land:8080`, etc
- `abc123@1.1.1.1`: IP `1.1.1.1` only
- `abc123@1.1.1.1:8080`: IP `1.1.1.1`, port 8080 only
- `abc123@[ipv6]`: IPv6 `[ipv6]` only
- `abc123@[ipv6]:8080`: IPv6 `[ipv6]`, port 8080 only
Leading dots are ignored, so `.deno.dev` is equivalent to `deno.dev`.
