It has since become known that Cloudflare is currently performing large-scale maintenance in many of their locations, their Dallas location went completely offline for the period we were offline, so this explains why we saw an outage. There was likely something that went wrong on Cloudflare's side in another of their locations that somehow then impacted Dallas, CosmicGuard is setup to automatically fail us over to another of their locations in the event of BGP routes being pulled - something that Cloudflare did not do in Dallas for an unknown reason. CosmicGuard will be talking to Cloudflare about this in the hope of avoiding a repeat.

Dallas came back online at 08:40 UTC. CosmicGuard has been using Cloudflare Magic Transit recently to help absorb the large attacks that DDoS mitigation providers are being hit with nowadays, 20Tb/s+. Unfortunately Cloudflare suffered a connectivity issue to CosmicGuard in Dallas, which resulted in traffic being blackholed, essentially dropped. CosmicGuard is currently investigating with Cloudflare why this happened, to hopefully prevent a repeat. We apologise for the inconvenience caused.