Hello @thefalcons ,
Thanks for sharing Site Health information.
This is more likely an issue at the host level. It looks like you have a Windows setup, with other users reporting encountering the same issue based on their PHP configuration.
In order to proceed with Site Kit setup can you ask your host provider if there are any restrictions such as WAF rules or PHP/SSL configurations which are not allowing your site to connect to https://sitekit.withgoogle.com?
If your host provide isn’t able to provide any additional insights feel free to share a video or screen recording of your experience, with Chrome developer tools open, showing any console errors which appear. You can use a service such as RecordIt or Loom to share.
Best Regards,