What is the name of the domain?
phatreturns.com.au
What is the issue you’re encountering
website offline
phatreturns.com.au
website offline
You don’t have a DNS record for phatreturns.com.au
…
https://cf.sjr.org.uk/tools/check?508e96824c814ac6aeabb8a1d5ffac2f#dns
www
redirects to phatreturns.com.au
so fails for the same reason.