Live Bullhorn CLS21 status. See if Bullhorn CLS21 is down, view recent outages, and get real-time alerts when problems start.
Bullhorn CLS21 is operational
IsDown pulls data from Bullhorn's status page every few minutes and collects user-reported issues. Refresh the page to see if there are any updates.
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.
IsDown has tracked 50 incidents for Bullhorn CLS21 since started monitoring Bullhorn status in April 2020. We collect data from 4200+ services, and normalize the data to give you a clear picture of the impact of the outage.
about 15 hours ago · lasted about 1 hour
Impact: Some users may experience latency and/or errors with email delivery from the Bullhorn application.
System: Bullhorn ATS/CRM
Cluster(s): CLS20, CLS21, CLS22, CLS23, CLS30, CLS31, CLS32, CLS33, CLS34, CLS35, CLS40, CLS41, CLS42, ...
about 1 month ago · lasted 40 minutes
Impact: Some users may experience errors when attempting to access https://app.bullhornstaffing.com
System: Bullhorn ATS/CRM
Cluster(s): All
Service: Login
Description: The Bullhorn Technical Operations team is investigating this issue...
5 months ago · lasted 4 days
Impact: Some users may experience latency and/or errors when logging into the Bullhorn application.
System: Bullhorn ATS/CRM
Cluster(s): CLS20,CLS21,CLS22,CLS23,CLS60,CLS66,CLS70,CLS71
Service: Login
Description: The Bullhorn Technical...
We've tracked and collected 50 incidents for Bullhorn CLS21 since started monitoring Bullhorn status
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CLS21 is part of Bullhorn. Check the Bullhorn's status.
2 incidents in 2025
Number of Incidents
2 issues
Last incident
0 days ago
Services commonly monitored together with Bullhorn
Bullhorn CLS21 is down. You can check Bullhorn CLS21 status and incident details on the top of the page. IsDown continuously monitors Bullhorn CLS21 official status page every few minutes. In the last 24 hours, there were 2 outages reported.
Bullhorn CLS21 seems to be having problems. You can check Bullhorn CLS21 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 Bullhorn CLS21 being slow. Check on the top of the page if there are any reported problems by other users.
IsDown monitors the Bullhorn CLS21 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.
Bullhorn CLS21 last outage was on May 14, 2025 with the title "Bullhorn ATS/CRM - Email Delivery Delays"
IsDown and DownDetector help users determine if a service 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. The integration allows us to provide more details about the outage, 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.
IsDown offers an easy way to monitor Bullhorn with maximum flexibility
IsDown monitors CLS21 for major outages. A major outage is when CLS21 experiences a critical issue that severely affects one or more services/regions. When Bullhorn 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.
IsDown monitors Bullhorn status page for minor outages. A minor outage is when CLS21 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.
IsDown collects all information from the outages published in Bullhorn 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.
Bullhorn 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.
IsDown monitors Bullhorn and all their 41 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.
Bullhorn 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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