Digital newsletter platform Substack is undergoing a major outage, with the entire website inaccessible.

Shortly before 1:00 PM ET, Substack posted a message on its status page saying it was investigating an issue. Roughly an hour and a half later, the issue was still unresolved.

Visitors to the website are being greeted with the following message:

We’re performing maintenance right now, but will be back shortly!

Please check back in a few minutes or go to substack.statuspage.io for updates—we’ll get you back to reading your favorite writers as soon as we can!