I found hyperstack.org via another site that was linking to you. However, they linked to www.hyperstack.org, which has a broken redirect.
Tested in Safari and Chrome on macOS, as well as curl. The URL being redirected to is https://www.hyperstack.org{https://hyperstack.org/}, which causes browsers to fail to load the page.
Safari

Chrome

curl
< HTTP/1.1 301 Moved Permanently
< Server: Cowboy
< Date: Tue, 09 Mar 2021 16:12:52 GMT
... snip ...
* Connection #0 to host www.hyperstack.org left intact
<html><body>You are being <a href="https://www.hyperstack.org{https://hyperstack.org/}">redirected</a>.</body></html>* Closing connection 0
Steps to reproduce:
Expected result:
Actual result:
I found
hyperstack.orgvia another site that was linking to you. However, they linked to www.hyperstack.org, which has a broken redirect.Tested in Safari and Chrome on macOS, as well as
curl. The URL being redirected to ishttps://www.hyperstack.org{https://hyperstack.org/}, which causes browsers to fail to load the page.Steps to reproduce:
Expected result:
Actual result: