CMS outage history and status

Is CMS down right now?

No
All Systems Operational Official status as of Oct 26, 2026, 16:17 UTC (refreshing…)
100%
uptime, 90 days
0
incidents, 90 days
—
median time to fix
May 30, 2026
last incident

CMS components

API

Studio

CMS outage history

Nov: 0 incidents, 0 min of major outage Nov Dec: 0 incidents, 0 min of major outage Dec Jan: 0 incidents, 0 min of major outage Jan Feb: 0 incidents, 0 min of major outage Feb Mar: 0 incidents, 0 min of major outage Mar Apr: 0 incidents, 0 min of major outage Apr May: 1 incidents, 388 min of major outage 1 May Jun: 0 incidents, 0 min of major outage Jun Jul: 0 incidents, 0 min of major outage Jul Aug: 0 incidents, 0 min of major outage Aug Sep: 0 incidents, 0 min of major outage Sep Oct: 0 incidents, 0 min of major outage Oct
CMS incidents per month, last 12 months. Red: months with a major or critical outage.
Started (UTC)IncidentImpactDuration
May 30, 2026, 12:37 UTC Data centre network issue
Login
Critical 6 h 28 min
Dec 15, 2023, 13:36 UTC CoreMedia Studio: login not possible
Login
Critical 9 min
Jul 4, 2023, 19:49 UTC Crowd is down
Login
Critical 17 h 47 min
Jun 21, 2023, 08:34 UTC Crowd is down
Login
Critical 43 min
Apr 3, 2023, 06:47 UTC Database issue affects CoreMedia
Login, Search, Publication, DOI Generator, PDF Service, Ref Parser
Critical 4 h 33 min
Mar 9, 2023, 10:45 UTC Crowd instability
Login
Major 2 h 12 min
Mar 7, 2023, 21:14 UTC Studio outage
Login, Publication
Critical 46 min
Jan 19, 2023, 10:49 UTC Crowd maintenance
Login, QA Environment
No impact 23 h 43 min
Aug 22, 2022, 09:28 UTC High Load on cm-prod-cm-studio-01
Publication
Minor <1 min
May 20, 2022, 03:21 UTC CoreMedia management server not responding
Login, Live, Search, Preview, Publication, DOI Generator
No impact 41 min
May 19, 2022, 17:07 UTC CoreMedia Studio not responding
Login, Search, Publication, DOI Generator, PDF Service, Ref Parser
No impact 21 min
Oct 11, 2021, 08:56 UTC Studio login not possible due to Crowd outage
Login, QA Environment
Major 1 h 09 min
Jul 10, 2021, 01:18 UTC CMS Delivery Outage
Live
Critical 2 days 6 h
May 10, 2021, 07:30 UTC Studio not working
Login
Critical 6 h 20 min
Apr 13, 2021, 12:34 UTC CoreMedia Studio login not possible
Login
Critical 1 h 03 min
Feb 11, 2021, 07:17 UTC Network issues leading to CoreMedia Studio outage
Login, Live, Search, Preview, Publication, QA Environment
Critical 4 h 08 min
Nov 10, 2020, 15:50 UTC CoreMedia Studio login not working
Login, QA Environment
Major 1 h 33 min
Oct 30, 2020, 14:08 UTC Infrastructure outage affecting various CMS services
Live, Search, Preview, Ref Parser
Major 1 h 43 min
Mar 31, 2020, 12:52 UTC CMS Outage
Login, Preview
Major 6 h 10 min
Oct 15, 2019, 08:04 UTC Files can't be uploaded to the CMS
Publication
Minor 111 days 23 h
Oct 4, 2019, 12:45 UTC CMS Outage
Login, Live, Search, Preview, Publication, QA Environment
Critical 41 min
Sep 15, 2019, 03:46 UTC Outage Delivery API
Live
Critical 8 h 08 min
Jun 26, 2019, 08:08 UTC Studio with connection problems
Login, Search, Publication, DOI Generator, PDF Service, Ref Parser
Major 3 h 39 min
Jun 3, 2019, 12:55 UTC Infrastructure Outage
Login, Search, Publication, QA Environment, DOI Generator, PDF Service
Major 2 h 36 min
May 23, 2019, 08:07 UTC Problems with Json API
Live, Preview
Critical 1 h 25 min

38 incidents in our archive since April 24, 2018.

When and where CMS fails

Most affected, last 12 months

  • Login1

Other other services

FAQ

Is CMS down right now?
At our last check CMS's official status page reported: All Systems Operational. This page refreshes the status every few minutes.
How often does CMS go down?
CMS reported 0 incidents in the last 90 days (0 major or critical), with 0 minutes of major outage: 100% uptime.
When was the last CMS outage?
The latest reported incident started on May 30, 2026, 12:37 UTC: "Data centre network issue", resolved after 6 h 28 min.

Source: CMS official status page · RSS of CMS incidents · status badge for your site