As a temporary workaround, if you are using a VPN, try setting it to the United States. I notice if I set my VPN to the UK, then the domain virology.ws isn't resolving.
Update: Setting my VPN service to the US or UK doesn't work anymore. But if I set it to Australia, virology.ws resolves. For now. Been having intermittent issues like this ever since Virology moved their server.