Running dig geoffha.co.uk @1.1.1.1 or dig www.geoffha.co.uk @1.1.1.1, I do not see any DNS A or AAA records.
Can you share a screenshot of your DNS configuration (with any sensitive information obfuscated), and how you’re attempting to host this website? Are you using a website host?
I’m a little out of my depth (but not computer illiterate). I’ve not set up any DNS records, I assumed this would be done automatically. At the moment I have no host set up. I’m trying to make a Cloudflared link to my Home Assistant but assumed the domain would be contactable in order for me to do this. The documentation I am following assumes a basic level of knowledge of Cloudflare, which I don’t yet have!! I will find the DNS records and come back.