Is Optimizely down?
A/B testing and personalization.
Severity over 90 days
From the incidents published by the provider. Maintenance excluded.
Downtime over 90 days
What to do if Optimizely is down
Check it isn't your side
Open another site. If it loads, your connection is fine.
Read the official source
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Official status page →See what people are reporting
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Incident history
Published by Optimizely
Delay of E-Mails Submitted via SMTP API
Starting around 10:00 CEST processing of emails submitted via our SMTP API is delayed. We already identified the underlying problem and are in the process of fixing the issue.
Official source
Data from Optimizely's public status page.
Official status pageFrequently asked questions
Is Optimizely down right now?
As of the last check (2026-09-17 00:27 UTC), Optimizely reports “Operational” on its official status page. 1 ongoing incident: Delay of E-Mails Submitted via SMTP API.
What is Optimizely's uptime over the last 90 days?
Optimizely shows 100.00% uptime over the last 90 days, across 0 published incident(s).
How do I get notified automatically when Optimizely goes down?
Create a free alert on Upstream Status: as soon as an incident is published on Optimizely's status page, you get an email (or a Slack/webhook notification on a paid plan).