As per MBS-12298, existing Triple J Unearthed URLs should be converted from:

• Old: https://www.triplejunearthed.com/artist/sampa-great
• New: https://www.abc.net.au/triplejunearthed/artist/sampa-great/

So, https://www.triplejunearthed.com to https://www.abc.net.au/triplejunearthed