CodeHS experienced a major incident on November 25, 2021 affecting Main Website, lasting 3h 49m. The incident has been resolved; the full update timeline is below.
Affected components
Main Website
Update timeline
- investigating Nov 25, 2021, 04:20 PM UTC
We're investigating a denial of service attack
- monitoring Nov 25, 2021, 04:52 PM UTC
The attacks have stopped, and we're monitoring in case of other attacks
- identified Nov 25, 2021, 05:21 PM UTC
We're seeing more issues with a DDOS attack and are working on a fix
- monitoring Nov 25, 2021, 05:28 PM UTC
We made an update and are handling the attacks better now. Site availability should be restored. We're continuing to monitor
- resolved Nov 25, 2021, 08:10 PM UTC
This incident has been resolved.