Check if cdnjs is down, recent outages, user-reported issues, and outages map.
cdnjs is working normally
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 cdnjs status data.
IsDown has tracked 15 incidents since started monitoring cdnjs status in March 2021. We collect data from 4522+ services, and normalize the data to give you a clear picture of the impact of the outage.
| Date | Status | Incident | Duration |
|---|---|---|---|
|
Jun 12, 2025
02:20 PM EDT
|
Major | API outage | about 3 hours |
|
Aug 01, 2023
02:22 PM EDT
|
Minor | SRI hashes changed on multiple libraries | 3 days |
|
May 20, 2022
07:28 AM EDT
|
Minor | API returning 502 responses | about 9 hours |
|
May 25, 2021
04:58 AM EDT
|
Maintenance | Intermittent issues with API responses | 10 months |
|
May 24, 2021
04:42 PM EDT
|
Maintenance | API returning Error 502 Bad Gateway | 10 months |
|
Apr 21, 2021
12:55 PM EDT
|
Major | API returning Argo Tunnel error | 11 months |
|
Aug 12, 2020
06:25 AM EDT
|
Minor | SSL errors for cdnjs.cloudflare.com | over 1 year |
|
Jun 12, 2020
04:30 AM EDT
|
Minor | cdnjs website & API erroring for some libraries | almost 2 years |
|
Apr 15, 2020
03:01 PM EDT
|
Minor | 522 & 523 responses for non-cached assets | almost 2 years |
|
Dec 30, 2019
04:59 AM EST
|
Minor | Library versions missing from website & API | about 2 years |
No comments yet
| Component | Status |
|---|---|
| CDN Service (cdnjs.cloudflare.com) | OK |
| API (api.cdnjs.com) | OK |
| Website (cdnjs.com) | OK |
| GitHub (github.com/cdnjs) | OK |
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CDN service that hosts popular libraries and provides fast, reliable access to them via a content delivery network.
Monitoring cdnjs since March 2021
Tracking 4 cdnjs services and regions
1 incident in 2025
Number of Incidents
0 issues
Last incident
123 days ago
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cdnjs isn't down. You can check cdnjs status and incident details on the top of the page. IsDown continuously monitors cdnjs official status page every few minutes. In the last 24 hours, there were 0 outages reported.
cdnjs is currently operational. You can check cdnjs 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 cdnjs being slow. Check on the top of the page if there are any reported problems by other users.
IsDown monitors the cdnjs 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.
cdnjs last outage was on June 12, 2025 with the title "API outage"
Because IsDown is a status page aggregator, which means that we aggregate the status of multiple cloud services. You can monitor cdnjs 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 cdnjs 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 cdnjs'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.
IsDown offers an easy way to monitor cdnjs with maximum flexibility
IsDown monitors cdnjs for major outages. A major outage is when cdnjs experiences a critical issue that severely affects one or more services/regions. When cdnjs 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 cdnjs status page for minor outages. A minor outage is when cdnjs 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 cdnjs 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.
cdnjs 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 cdnjs and all their 4 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.
cdnjs 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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