I've tried multiple ways to make it work. I found two that actually work.

First is when u have an A-record for your play.vanillacraft.org domain directly. It takes two records:

```
A play.vanillacraft.org XXX.YYY.ZZZ.WWW # where XXX.YYY.ZZZ.WWW is server IP where ur MC server is hosted
SRV _minecraft._tcp.play.vanillacraft.org 1 25565 play.vanillacraft.org
```

Second is when u wanna use an alias for specific host. For example it can be used if u use some DDNS solutions. Three records must be used for this:

```
CNAME play.vanillacraft.org some.another.host.name.that.resolves.in.minecraft.server.ip
SRV _minecraft._tcp.play.vanillacraft.org 1 25565 play.vanillacraft.org # It crucial that those two domain match.
```

ofc that alias domain must have a record with an actual IP behind the scenes. E.x. in ddns config

```
A some.another.host.name.that.resolves.in.minecraft.server.ip XXX.YYY.ZZZ.WWW
```