Qt quarterly articles are down

Previously hosted at http://doc.qt.digia.com/qq/

The website now says something like:
"The selected domain name is reserved for our customers." translated with google translate.

doc.qt.io doesn't seem to have the articles, but have dead links to them (e.g. here named "Another look at Events").

The archive.org site still has them available, so the issue may be considered as low priority.