@Tom : As I have the latest version, so I've no more the download page.
The product home page bf62b69b-eb8f-4a2a-b28b-3e82467457bd-image.png is the right / useful one: https://ghostscript.com/releases/gsdnld.html .
I am quite sure that I got https://artifex.com/products/ghostscript/ when using the download button: 8ed43024-8af3-4be4-812d-262ebee9f267-image.png .
I did not think this was a temporary error. When few seconds later after using the button, I used the the download link that I found in my bowser history it worked perfectly.
Hope this helps.