Fastly, our upstream CDN provider, suffered a service disruption starting at Jun 08, 2021 - 09:58 UTC. At Jun 08, 2021 - 10:57 UTC a fix was deployed on Fastly's systems and they are monitoring the situation presently.
At this time all systems are operation on our end, but we are reviewing/monitoring traffic patterns during the return of global traffic and playing catch up with delayed requests now being processed and populating our outer most cache layer.