On the 21st of June 2022 at ~06:33 GMT, Squiz monitoring systems detected a degradation of service affecting customers hosted on our SaaS platform. Users may have received an error page from the Cloudflare Content Delivery Network (CDN) related to not being able to resolve the origin DNS, occurring for all requests.
Investigations performed by our Platform team indicated an issue with a third party vendor service, which resulted in SaaS platform services becoming unavailable. The third party followed their own major incident process, identified the root cause as an inadvertent side effect of a network change, and then rolled back the change, restoring service at 07:20 GMT. The incident was recovered externally by the third party without action by Squiz.
For the duration of the incident, users may have received an error page (Error 1016) from the Cloudflare Content Delivery Network (CDN) with an “error 500 status code” message related to not being able to resolve the origin DNS, occurring for all requests.
Our third party vendor made a network change that caused services to become unavailable between 06:33 GMT and 07:20 GMT.
In response to this Incident, the third party network provider will run additional checks on their router configuration ensuring proper network traffic flows through their infrastructure.
From our end, the Squiz Platform team is on standby in case further validation is required.