Operational
cern.ch
Server IP
188.184.77.250
Nameserver
ext-dns-1.cern.ch
Hosting Provider
ISP / Host
Social Pulse
Check
X ↗
Response Time Trends (Last 24 Hours)
Stable
Problem Analysis
Verified From 12 Global Nodes
New York
113ms
London
104ms
Tokyo
118ms
Singapore
104ms
Mumbai
156ms
Sydney
126ms
Frankfurt
106ms
Paris
131ms
Toronto
131ms
San Francisco
133ms
Amsterdam
156ms
Sao Paulo
142ms
Live User Reports
0 Reports (24h)Having trouble with cern.ch?
Select the issue you are experiencing to help our community:
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Last 1h: 0 reports
Last 24h: 0 reports
Incident Timeline
Response time 979.1ms is 6x above average (162.68ms)
Apr 20, 12:57
Uptime History (30 Days)
30 days agoUptime:
100%Today
Verified Status from 15 Global Locations
We perform real-time HTTP requests from actual servers in each region to detect regional outages.
North America
4 Locations
Europe
4 Locations
Asia Pacific
4 Locations
Oceania
3 Locations
Troubleshooting Cern Ch
- Try a different browser or incognito/private window
- Clear your browser cache and cookies
- Try on a different network (switch between Wi-Fi and mobile data)
- Change your DNS to 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare)
- Check if cern.ch has an official status page or Twitter/X account
- Wait a few minutes and try again - outages are often brief
Submit an Outage Report
Frequently Asked Questions
Is cern.ch down right now?
Our live monitoring checks suggest whether cern.ch is currently reachable. If you still cannot access it, the issue may be local to your ISP, DNS, or device.
How do you verify Cern-ch's status?
We run multiple checks for cern.ch: DNS lookup, HTTP request, and retry logic before confirming an outage.
What are common problems with cern.ch?
Users usually report login failures, slow loading, app errors, or regional routing issues during outage windows.
How can I fix connection issues to cern.ch?
Try clearing browser cache, flushing DNS, switching network, or disabling VPN/proxy to rule out local connectivity problems.
How do I report a Cern-ch outage?
Use the report form on this page. Community reports help identify regional incidents faster.