- Level
- confirmed
- Worst impact
- Major outage
- Components
- Application UI, Optimizely REST API
- Down Index
- 41of 100
What to do
Check whether you use Optimizely Application UI, Optimizely REST API. Check your stack
Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.Confirm your retries, queues and scheduled jobs caught up after the 1h 48m it lasted.
Anything that failed between 2026-05-20 09:42 UTC and 2026-05-20 11:30 UTC may need a replay.Subscribe to Optimizely's feed to hear about the next one first. RSS feed
https://down.guide/feed?provider=optimizely works in Slack (/feed subscribe), Discord feed bots and any RSS reader.
Updates from Optimizely 4
- investigating
We are currently investigating the issue.
provider
- investigating
We are continuing to investigate this issue.
provider
- monitoring
A fix has been implemented and we are monitoring the results.
provider
- resolved
This incident has been resolved.
provider
Reports count in aggregate; nothing about you is shown.
Corrections
None so far.
Something wrong on this page? Report an error or send us a note. Every fix is listed here.
Questions about DWN-f262e55f21
Is Optimizely still down?
No, this incident was resolved 2026-05-20 11:30 UTC. For Optimizely's live state, see https://down.guide/optimizely.
How long did it last?
1h 48m, from 2026-05-20 09:42 UTC to 2026-05-20 11:30 UTC, by the times Optimizely posted.
What was affected?
Optimizely named Application UI, Optimizely REST API.
What caused it?
Optimizely hasn't published a root cause. If it does, it shows here.
Where does this come from?
Optimizely's official status page, https://status.optimizely.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.