Is Auth0 status feed integration with Slack working?

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Hi

I am trying to integrate the atom (&RSS) feed from Auth0 Status Page as documented here and here.
I am not getting any feeds and checking the feed URL against w3c validator returns error id must be a full and valid URL:[id].
I tried both http and https for the atom. I also tried RSS feeds which returns more than 1 error.
Am I doing something wrong?

Appreciate any inputs on this. Thanks.