Is Semaphore Down? Check current status

Check if Semaphore is down, official outages, user-reported issues, and outages map.

Current Semaphore status

Semaphore is working normally

Updated from Semaphore official status page

Having problems with Semaphore?

Semaphore service health. Issues reported in the last 24 hours

Working Normally
Possible Incident
Confirmed Outage

This chart displays 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. Sign up for free to see more Semaphore status data.

Semaphore Outage Map

View Semaphore Outage Reports Map

Recent Semaphore Outages and Downtime History

IsDown has tracked 221 incidents since started monitoring Semaphore status in April 2020. We collect data from 4522+ services, and normalize the data to give you a clear picture of the impact of the outage.

Date Incident Duration
Oct 14, 2025
03:47 PM EDT
Minor
Network congestion on route to AWS ECR us-east region
We are currently investigating this issue.
about 5 hours
Oct 02, 2025
02:48 PM EDT
Minor
Slow job processing on e2 machine types
We are currently investigating this issue.
about 4 hours
Sep 16, 2025
09:02 PM EDT
Minor
Slow job processing on C1 machine types
The issue has been identified and a fix is being implemented.
about 1 hour
Sep 12, 2025
05:41 AM EDT
Major
New project initialization issues
We are currently investigating this issue.
about 2 hours
Sep 04, 2025
01:12 PM EDT
Major
Job processing delays due to connectivity issues with GitHub
We are currently investigating this issue.
about 1 hour
Aug 28, 2025
01:46 PM EDT
Minor
Network congestion on route to AWS ECR us-east region
We are currently investigating this issue.
about 8 hours
Aug 19, 2025
07:01 AM EDT
Minor
"Plans & Billing" page unavailable
The issue has been identified and a fix is being implemented.
about 1 hour
Jul 31, 2025
08:13 AM EDT
Major
Elevated error rates when fetching test results
The issue has been identified and a fix is being implemented.
36 minutes
Jul 07, 2025
06:50 AM EDT
Major
Delays in job processing on Semaphore
We are currently investigating this issue.
31 minutes
Jun 30, 2025
01:40 PM EDT
Major
Delays in Job Processing
The issue has been identified and a fix is being implemented.
43 minutes
Sign up to check more outage history
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User comments about problems with Semaphore

  • Roxana - I'm not able to edit workflow anymore and so the build is not triggered. Neither to start a workflow from yarn template. .

Semaphore status page - All services & components

Component Status
Semaphore 2.0 OK
Semaphore Classic OK

Semaphore Related Services & Alternatives

Services commonly monitored together with Semaphore and alternatives

AWS

AWS

OK
0 incidents in the last 30 days
Notion

Notion

OK
0 incidents in the last 30 days
GitHub

GitHub

OK
0 incidents in the last 30 days
Stripe

Stripe

OK
0 incidents in the last 30 days
Google Cloud

Google Cloud

OK
0 incidents in the last 30 days
Hunter.io

Hunter.io

OK
0 incidents in the last 30 days
OpenAI

OpenAI

OK
0 incidents in the last 30 days
Slack

Slack

OK
0 incidents in the last 30 days
Docker

Docker

OK
0 incidents in the last 30 days
Microsoft Office 365

Microsoft Office 365

OK
0 incidents in the last 30 days
Microsoft 365

Microsoft 365

OK
0 incidents in the last 30 days
Google Workspace

Google Workspace

OK
0 incidents in the last 30 days
Cloudflare

Cloudflare

OK
0 incidents in the last 30 days
Postmark

Postmark

OK
0 incidents in the last 30 days
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4522+ third-party services available to monitor

Early Outage Detection

Alerts 30+ minutes before official updates

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IsDown aggregates various status pages from services into a very clear dashboard. Worth every penny.
Mike S., Head of Security

Semaphore is a continuous integration and delivery service that supports rapid testing and deployment of code with Semaphore 2.0 and Semaphore Classic versions.

Monitoring Semaphore since April 2020

Tracking 2 Semaphore services and regions

Need help? Try here:
Support at official website.
Check their official status page.

26 incidents in 2025

Frequently Asked Questions

Is Semaphore down today?

Semaphore isn't down. You can check Semaphore status and incident details on the top of the page. IsDown continuously monitors Semaphore official status page every few minutes. In the last 24 hours, there were 0 outages reported.

What is the current Semaphore status?

Semaphore is currently operational. You can check Semaphore 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.

Is there a Semaphore outage now?

No, there is no ongoing official outage. Check on the top of the page if there are any reported problems by other users.

Is Semaphore down today or just slow?

Currently there's no report of Semaphore being slow. Check on the top of the page if there are any reported problems by other users.

How are Semaphore outages detected?

IsDown monitors the Semaphore 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.

Is Semaphore having an outage right now?

Semaphore last outage was on October 14, 2025 with the title "Network congestion on route to AWS ECR us-east region"

How to check if Semaphore is down?

Why use IsDown to monitor Semaphore instead of the official status page?

Because IsDown is a status page aggregator, which means that we aggregate the status of multiple cloud services. You can monitor Semaphore 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.

How IsDown compares to DownDetector when monitoring Semaphore?

IsDown and DownDetector help users determine if Semaphore 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 Semaphore'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.

How IsDown works?

  1. IsDown monitors official status pages

    We check the status of the services you're monitoring every few minutes. We aggregate the status and outage information and normalize it. We also collect crowdsourced information to provide early warning signs.

  2. We notify you when there is an outage

    We send you an alert whenever we detect a new incident or an update on the status of the services you're monitoring. You can customize the alerts to your needs to avoid alert fatigue.

  3. Dedicated dashboard and integrations

    Aggregate all the status information in a straightforward dashboard or internal status page. You can also send the information and alerts to your team's communication/monitoring/incident management tools, such as Slack, Datadog, Microsoft Teams, PagerDuty, and more.

Want to be informed about Semaphore status changes?

IsDown offers an easy way to monitor Semaphore with maximum flexibility

Major Outages Notifications

IsDown monitors Semaphore for major outages. A major outage is when Semaphore experiences a critical issue that severely affects one or more services/regions. When Semaphore marks an incident as a major outage, IsDown updates its internal status, the customer status page and dashboard. Depending on the customer settings, IsDown will also send notifications.

Minor Outages Notifications

IsDown monitors Semaphore status page for minor outages. A minor outage is when Semaphore experiences a small issue affecting a small percentage of its customer's applications. An example is the performance degradation of an application. When a minor outage occurs, IsDown updates its internal status and shares that information on the customer status page. Depending on the customer settings, IsDown will also send notifications.

Outage Details

IsDown collects all information from the outages published in Semaphore status page to provide the most accurate information. 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.

Maintenance Feed

Semaphore publishes scheduled maintenance events on their status page. IsDown collects all the information for each event and creates a feed that people can follow to ensure they are not surprised by unexpected downtime or problems. We also send the feed in our weekly report, alerting the next maintenances that will take place.

Component Filtering

IsDown monitors Semaphore and all their 2 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.

Early Outage Detection

Semaphore and other vendors don't always report outages on time. Our crowdsourced status platform helps you stay ahead of outages. Users report issues and outages, sharing details on what problems they are facing. We use that info to provide early signs of outages. This way, even without an official update, you can stay ahead of possible problems.

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