DL is back online. The DL hosting provider shut us down because the site was using up too many resources on their shared server environment. We suspect that it was due to a new plugin that was installed to make life easier for the authors. Unbeknownst to us, the plugin caused a bunch of alarms for the hosting provider. Inexplicably, they simply disabled the site and took days (5 to be specific) to re-enable it for an administrator to make the requested changes to optimize it. When they finally did, the changes were implemented in about an hour. Then it took an additional 48 hours to re-enable the site for everyone.
We will be re-examining our hosting provider relationship over the next few weeks and hopefully we can avoid outages like this in the future.
I should note that this is the longest that the site has been down since it’s founding 14 or so years ago. Thanks for sticking with us.