@Kaetsu ,
Thank you for reaching out to the Microsoft Q&A platform. Community members can't find such information if at all the website is hosted on Azure. I recommend you reach out to your company's global admin to know who hosted this website on Azure, or you can raise an Azure support request from the Azure portal so that the concerned team member can help you. Thanks.
----------
Please "Accept as Answer" and Upvote if any of the above helped so that, it can help others in the community looking for remediation for similar issues.