Website Uptime Monitor
Monitor website availability and server information for any domain
uni-duesseldorf.de
Uptime & Server Information
Current Status
Historical Data
| Date | Status | Server |
|---|---|---|
| 7/22/2026, 9:05:36 PM | Active | Apache |
| 6/24/2026, 10:18:01 PM | Active | Apache |
| 6/9/2026, 4:42:01 PM | Inactive | Unknown |
| 5/8/2026, 8:32:43 AM | Active | Apache |
| 4/20/2026, 11:42:05 AM | Active | Apache |
| 4/1/2026, 8:47:43 AM | Active | Apache |
| 3/28/2026, 12:12:28 AM | Active | Apache |
| 3/25/2026, 8:38:55 PM | Active | Apache |
| 2/17/2026, 8:36:39 PM | Inactive | Unknown |
| 1/23/2026, 2:35:55 PM | Inactive | Unknown |
| 1/6/2026, 8:29:19 PM | Active | Apache |
| 1/4/2026, 7:32:28 PM | Inactive | Unknown |
| 12/31/2025, 4:09:40 PM | Inactive | Unknown |
| 12/30/2025, 4:16:24 AM | Inactive | Unknown |
| 12/19/2025, 11:29:43 AM | Inactive | Unknown |
| 12/18/2025, 9:39:40 AM | Active | Apache |
| 12/8/2025, 8:19:08 AM | Inactive | Unknown |
| 12/2/2025, 6:36:10 PM | Active | Apache |
| 9/21/2025, 2:18:49 PM | Active | Apache |
| 8/25/2025, 1:49:53 AM | Active | Apache |
| 8/18/2025, 10:15:29 PM | Active | Apache |
| 8/16/2025, 5:19:38 PM | Active | Apache |
| 8/15/2025, 12:49:50 AM | Active | Apache |
| 8/13/2025, 7:42:53 PM | Active | Apache |
| 8/12/2025, 7:08:12 AM | Inactive | Unknown |
| 8/11/2025, 12:48:45 AM | Inactive | Unknown |
| 5/21/2025, 8:53:39 AM | Active | Apache |
| 5/20/2025, 5:30:24 AM | Active | Apache |
| 5/9/2025, 12:20:17 AM | Active | Apache |
| 2/23/2025, 1:10:36 AM | Active | Apache |
| 1/30/2025, 12:48:37 AM | Active | Apache |
Don't just check uptime once — watch it 24/7
This is a one-time check. Turn on monitoring and we'll watch the domains that matter to you continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
Free for your first domain: uptime, DNS, and certificate together. No credit card.
About Website Uptime Monitoring
Use the Who.is uptime information to track the availability and server information of websites. This helps track:
- Website availability and response status
- Server software and configuration
- Meta information including titles and descriptions
- Historical uptime patterns
This information is valuable for website owners, system administrators, and anyone interested in monitoring website reliability and performance.
Metrics we monitor
- Uptime percentage: The percentage of time your website is accessible
- Response time: How quickly your server responds to requests
- Status codes: HTTP response codes indicating server status
Disclaimer: Who.is is not affiliated with, endorsed by, or connected to any of the domains displayed on this page. We provide this information as a public service for informational purposes only.