What is wrong with icloud.com ? Http/1.1 Service Unavailable

Hi at2008rus,

I'm sorry to hear you are or were having this issue with iCloud. Per the Apple System Status page, it does appear there was a limited short-term outage of some services on the morning of the 27th. You may find the following page helpful:

Apple - Support - System Status

If you are still having issues accessing iCloud.com, you may find the information and troubleshooting steps outlined in this article useful:

iCloud: Troubleshooting web browser issues with iCloud.com - Apple Support

Cheers

Hi at2008rus,

Thank you for using the Apple Support Communities. I'm sorry to hear you are still having this issue. If you have gone through the above linked article completely without reaching a resolution or a direction for further troubleshooting, you may be better served by reaching out to one of Apple's other available resources for more direct assistance (iCloud should be listed under More Products & Services)- https://getsupport.apple.com/GetproductgroupList.action

Regards