Yes, unfortunately lauxnet.com is down since quite some time (and it doesn't seem it will come back up any time soon).
Much more functionality is available via a Bot on Discord: https://discord.gg/TQhTVB2
Discord is a general chat (and voice) communication platform that many games and their users are using to communicate. The link above sends you to a Discord server (=community) that has many players discuss all aspects of Dominion, on- or offline. Discord works in a browser or desktop and mobile apps. You need to make a free account, then join servers by clicking invite links, like the above.
Disord allows some automation, and user Cave-O-Sapien made "Dombot", a software that can access the player and games database of Dominion Online and show you your latest 20 rated games, among other things, when you give it some text commands.
If you open a private chat with Dombot, it will respond to commands starting with a "!". "!help" is a good start for an overview, getting your own prior rated games would be "!prior <your account name>" (that lists 5 games). If I want to get my last 20 rated games, for example, I'd have to type in "!prior Ingix -n 20".