Check if Zscaler is down, official outages, user-reported issues, and outages map.
Zscaler is working normally
Check the number of user-reported issues over the past 24 hours, grouped into 20-minute intervals. It's normal to see occasional reports, which may be due to individual user issues rather than a broader problem. We only consider an issue widespread if there are multiple reports within a short timeframe.
IsDown has tracked 224 incidents since started monitoring Zscaler status in March 2023. We collect data from 4522+ services, and normalize the data to give you a clear picture of the impact of the outage. It will show official Zscaler outages and also issues that we're started by a spike in crowdsource reports.
| Date | Incident | Duration |
|---|---|---|
|
Oct 26, 2025
12:09 PM CET
|
Minor
We are investigating an issue with the administration UI and user authentication on our zscaler.n...
|
18 minutes |
|
Oct 25, 2025
06:49 AM CEST
|
Not Confirmed by Zscaler
Possible Outage Indicated by User Reports
|
about 2 hours |
|
Oct 23, 2025
07:21 PM CEST
|
Minor
Zscaler is investigating an issue affecting DLP enforcement when handling password-protected file...
|
about 20 hours |
|
Oct 21, 2025
03:01 AM CEST
|
Minor
We are investigating an issue with our Singapore V, Frankfurt VI datacenter. For more information...
|
about 1 hour |
|
Oct 20, 2025
10:19 AM CEST
|
Minor
We are investigating an issue with ZIdentity Portal Issue on our zscaler.net, zscalerone.net, zsc...
|
about 2 hours |
|
Oct 20, 2025
10:04 AM CEST
|
Minor
We are investigating an issue with the Cloud Browser Isolation Service on our zscaler.net, zscale...
|
about 4 hours |
|
Oct 18, 2025
12:14 AM CEST
|
Minor
Zscaler is aware of an issue where certain DLP email notifications are not being delivered. Zsca...
|
about 1 hour |
|
Oct 15, 2025
03:44 PM CEST
|
Minor
We are investigating an issue with e-mail processing of Schedule Reports on our Zscaler.net, Zsca...
|
16 minutes |
|
Oct 15, 2025
10:51 AM CEST
|
Minor
Zscaler is investigating reports of an issue with our Tel Aviv II datacenter. We are investigatin...
|
about 1 hour |
|
Oct 09, 2025
09:55 AM CEST
|
Minor
Zscaler has detected an issue with our Kuala Lumpur I datacenter. For more information, please ch...
|
43 minutes |
See what users are saying about Zscaler issues that impacted them and how they are affected by the outage. You can see if other users are experiencing the same issues and if there are any workarounds or solutions.
Ritro - Zscaler connectivity issue.
Richard - Add server error. Can’t connect.
Prem - Zscaler Cloud App Control policy isn’t working as expected.
H - Not allowing internet connection at all.
Dinesh - ZIA admin portal not loading after putting credentials.
Paula - It would not let me sign on today. I’m restarting my computer and the restart has been going on for over 20 minutes..
Al - Unable to authenticate. It has been down all the morning. .
Amanda - No connection to the server. .
Nicola - partial internet connectivity.
Chelsey - Connected with no internet .
prateek - not able to connect to any apps like outlook, teams, databricks, azure portal as system is on zscaler.
Bob - Issue with Frankfurt datacentre very slow and loss of connection.
Roy - Extremely slow performance. Unable to do basic conferencing and 30+ seconds to open collaboration apps like ppt & word..
Dave - Several users are unable to access the service.
Shagun - Zscaler calls are failing.
Dhanush - Tunnel connectivity is down .
H - Internal error message given.
L - Zscaler not working, window keeps flickering.
Steve - When I try to login, I get a message "Downloading Service Configuration" and after a several seconds I get an error message "Internal Error, Please contact Admin.... [-14]".
Joe - Unable to connect via client .
Zayn - Not able to connect to the internet .
Joske - Total failure of internet connection.
Prashik - not able to connect to zscalar DC from office .
Rob - Can't log into the teams app or outlook on my pc..
S - cannot authenticate via zscaler.
rajesh - Not able to access internet via Zscaler.
Margarita - I started expierencing issues with my google chrome and zscaler. My gmail does not work with zscaler. It keeps disconnecting from my work network (salesforce) IT couldn’t figure it out and doing remote access would just lag out bc everytime google chrome reboot. IT shared it’s an on going issue a....
Sushant - Not able to access my office url and and our product .
Zakir - I'm unable to access Internet and my data on organisation cloud server. I'm getting server error .
Anon - Zscaler private access currently not logging in. "Navigation to webpage was cancelled".
| Component | Status | Details |
|---|---|---|
| Americas status | OK | View details |
| APAC status | OK | View details |
| Core Cloud Services status | OK | View details |
| EMEA status | OK | View details |
| Middle East status | OK | View details |
Users are monitoring tens of services with IsDown. Here are some that are monitored together with Zscaler. With IsDown you can get a bird's eye view of all your dependencies and how they are performing.
Cloud-based security service that provides safe internet and web access through a globally distributed network of security nodes.
Monitoring Zscaler since March 2023
Tracking 94 Zscaler services and regions
92 incidents in 2025
IsDown is a status page aggregator that monitors if Zscaler and all your dependencies are experiencing issues. We combine the status of all the services you dependent and provide a clear view of all your vendors health in one place. We not only monitor official information but also crowdsourced reports. That means that even when Zscaler, per example, doesn't report an outage, you will still be notified if other users are experiencing issues.
Every few minutes we go to the status page of Zscaler (and 4,522+ other services) and check if they are experiencing issues. We collect the status and outage information of Zscaler's 94 components. Also, we not only monitor official sources but also user reports. Sometimes or a lot of times vendors take some time to report an incident, so by monitoring user reports we're able to alert you early.
Not only you will get notified, but IsDown offers notification filters, so you can choose which issues you want to be notified about. This way you avoid getting all the incidents from Zscaler and other services.
IsDown checks Zscaler official status page for major/minor outages or downtimes. A major outage is when Zscaler experiences a critical issue that severely affects one or more services/regions. A minor incident is when Zscaler experiences a small issue affecting a small percentage of its customer's applications. An example is the performance degradation of an application. The moment we detect a Zscaler outage, we send you an alert and update your dashboard and status page.
Zscaler and other vendors don't always report outages on time. IsDown collects user reports to provide early detection of outages. This way, even without an official status update, you can stay ahead of possible problems.
IsDown collects all information from the outages published in Zscaler status page to provide the context of the outage. If available, we gather the title, description, time of the outage, status, and outage updates. Another important piece of information is the affected services/regions which we use to filter the notifications that impact your business.
IsDown monitors Zscaler and all their 94 components that can be affected by an outage. IsDown allows you to filter the notifications and status page alerts based on the components you care about. For example, you can choose which components or regions affect your business and filter out all other outages. This way you avoid alert fatigue in your team.
Our tool was build to be the best way to monitor all your external dependencies in one place. IsDown not only will help you monitor Zscaler but also 4,522 other services. Your team and customers will have a clear view of all your dependencies and their status, making it easier to identify and resolve issues.
Add all your dependencies to your dashboard. IsDown will monitor them in real-time and send you alerts when there is an issue. You can also create a status page for a bird-eye view and share it with your team.
Start Monitoring for Free
Not only you will get notified, but IsDown offers notification filters, so you can choose which issues you want to be notified about. This way you avoid getting all the incidents from Zscaler and other services.
Start Monitoring for Free
IsDown integrates with 20+ tools. Connect the status of Zscaler and 4,522 other vendors to your tools to receive vendor outage alerts exactly where your team needs them.
Start Monitoring for Free
Create a status page that can easily be access by your team and customers. You can make it public or private, and customize it to your needs. This will be your first line of communication when there's the question 'Is Zscaler down?'
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While Downdetector relies on user-submitted reports to detect Zscaler outages, IsDown monitors Zscaler's status page for verified, detailed incident information. Here's why official monitoring provides better reliability for your business:
| Features |
|
Downdetector |
|---|---|---|
| Official Zscaler status page monitoring with real-time incident details. | ||
| Monitor 4,522+ services including Zscaler in a single dashboard. | ||
| Instant Zscaler outage alerts sent to Slack, Teams, PagerDuty, and more. | ||
| Combined monitoring of Zscaler official status and user-reported issues. | ||
| Maintenance feed for Zscaler | ||
| Granular alerts filtering by Zscaler components and regions. |
14-day free trial • No credit card required
Zscaler isn't down. You can check Zscaler status and incident details on the top of the page. IsDown continuously monitors Zscaler official status page every few minutes. In the last 24 hours, there were 0 outages reported.
Zscaler is currently operational. You can check Zscaler status and incident details on the top of the page. The status is updated in almost real-time, and you can see the latest outages and issues affecting customers.
No, there is no ongoing official outage. Check on the top of the page if there are any reported problems by other users.
Currently there's no report of Zscaler being slow. Check on the top of the page if there are any reported problems by other users.
IsDown monitors the Zscaler official status page every few minutes. We also get reports from users like you. If there are enough reports about an outage, we'll show it on the top of the page.
Zscaler last outage was on October 26, 2025 with the title "Administration UI and User Authentication Issues"
Because IsDown is a status page aggregator, which means that we aggregate the status of multiple cloud services. You can monitor Zscaler and all the services that impact your business. Get a dashboard with the health of all services and status updates. Set up notifications via Slack, Datadog, PagerDuty, and more, when a service you monitor has issues or when maintenances are scheduled.
IsDown and DownDetector help users determine if Zscaler is having problems. The big difference is that IsDown is a status page aggregator. IsDown monitors a service's official status page to give our customers a more reliable source of information instead of just relying on reports from users. The integration allows us to provide more details about Zscaler's Outages, like incident title, description, updates, and the parts of the affected service. Additionally, users can create internal status pages and set up notifications for all their third-party services.
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