Did you notice Speculoos was a Belgian project with a co.uk domain? Yes, we know, it's weird. And we're almost not Belgian any more, and most of our members never were. So we took the .world extension and speculoos.world it's now our main domain name.
This applies to the website as well as for the viewer settings. Users should refresh their settings in viewer grid manager, but it will still work fine if they don't, we keep the co.uk up and running.
One side effect: when hypergridding, any of both domains may appear on the bubble above our heads, depending of the visited grid cached info (which is actually permanent and never updated, this might deserve a patch).