You can play WelshDraco by adding the server in the Minecraft launcher.
On Minecraft Bedrock Edition, open the Minecraft launcher or Minecraft app. Go to the “Servers” tab and press “Add Server.” Enter the WelshDraco IP Address mc.welshdraco.comin the “Server Address” and the WelshDraco port 19132 in the “Port.” Then press “Save” and start playing.