Summary of impact:
At approximately 06:31 UTC on Tuesday 21st June 2022, our monitoring alerted us to connectivity issues to our platform. During this time, customers experienced issues when trying to gain access to their Dotdigital account or the API. In addition, all inbound activities such as surveys, email and SMS interactions and contact signups would have worked intermittently.
We isolated the problem to be with a 3rd party provider, Cloudflare. Cloudflare have since announced the incident was caused by an incorrect network configuration change which disrupted traffic in some of their largest data centers. You can find the full details of the incident on the Cloudflare blog post https://blog.cloudflare.com/cloudflare-outage-on-june-21-2022/.
At 07:29 UTC, Cloudflare resolved the issues with their network routing. This meant access to our platform and APIs were restored.
We’ve asked Cloudflare to continue their investigation into this incident and to identify any mitigating steps they can take to prevent future issues.