Outage report · Major outage

ResDiary outage on Jun 11, 2025

UK Diary Bad Gateway Error

SeverityMajor outage

StartedJun 11, 2025, 03:52UTC

ResolvedJun 11, 2025, 10:17UTC

Duration6h 25m

What happened

ResDiary reported a major outage starting Jun 11, 2025, 03:52 UTC, affecting UK/Europe, API, Widget, Reserve with Google. It was marked resolved at Jun 11, 2025, 10:17 UTC.

The incident lasted 6h 25m from first report to resolution.
It was the 2nd longest of 11 significant outages ResDiary reported in the 12 months up to it.
ResDiary had reported 2 other partial or major outages in the 90 days before it.
7 other vendors we track reported a significant incident within 12 hours of it.

Latest update from ResDiary

We were alerted to degraded performance across our services at 04:37am on June 11th 2025. Our Engineers responded to the alert immediately, with additional engineers being called in at 05:52am. A full investigation has been completed into the cause, and steps needed to safeguard our services moving forward: ‌ _Root Cause_ An Azure CDN endpoint that our system is reliant on failed, without any warning from the 3rd party. On 11th of June 2025 the Let’s Encrypt SSL certificate for \`\*.azureedge.net\` expired leading all secure traffic to be blocked. The PowerShell command “Install-PackageProvider” which was used in a start-up script for the application uses the CDN endpoint "[onegetcdn.azureedge.net](https://onegetcdn.azureedge.net/)", which was impacted by the expired SSL certificate. This was the root cause of the incident. ‌ _Corrective actions Taken_ We are removing any instances of the Install-PackageProvider command in our scripts and migrating them to [AnyPackage](https:

Read ResDiary's official incident report ↗