Zscaler is UP
and responding normally
Cloud security platform
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Save it as a Vartio monitor and get alerts when our EU checks detect downtime or degraded response.
Response Time History
Recent Activity (7 days)
Response time has been trending faster lately — 228ms on average now, versus 262ms earlier in the week.
- Went from down to upAug 21, 2026, 10:57 AM
- Went from up to downAug 21, 2026, 10:47 AM
- Went from down to upAug 21, 2026, 7:37 AM
- Went from up to downAug 21, 2026, 7:27 AM
- Went from down to upAug 19, 2026, 7:14 AM
About Zscaler
- Website
- www.zscaler.com
- Category
- Security
- Monitored from
- EU (Helsinki, Frankfurt, Amsterdam)
- Check interval
- Every 5 minutes
- Monitoring since
- March 30, 2026 (148 days, 5,761 checks)
How we measure this: checks run from EU servers only, so a result here reflects what the EU sees, not a global view. A regional outage, CDN edge-cache issue, or bot/WAF protection that treats our monitoring probe differently than a real visitor can all cause this to disagree with Zscaler's own status page — that's a limitation of any third-party checker, not just this one.
Frequently Asked Questions
Is Zscaler down right now?
Zscaler is currently up and running. Our last check from EU servers showed a response time of 163ms with 99.88% uptime over the past 148 days.
What is Zscaler's uptime?
Zscaler has a 99.88% uptime measured over 148 days, based on 5,761 checks from Vartio's EU monitoring servers located in Helsinki, Frankfurt, and Amsterdam.
How do I check if Zscaler is down?
Vartio monitors Zscaler every 5 minutes from multiple EU servers and runs a live check when you visit this page. This page shows the current status, response time, and uptime history. You can also monitor your own services for free.
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