Hi Tommy, Robin and Jesfer,
How are things going? Can you access to the public website now?
In regard to the issue, I’ve tested for the website you’ve provided and found out I can access to them without issues now. In this situation, I suggest you check the service health and planned maintenance for Office 365 in MOP (Microsoft Online Portal), to see if there is any info related to the issue. For more details, please refer to: View the status of your services.