Website Uptime Monitor
Monitor website availability and server information for any domain
20cm.cc
Uptime & Server Information
Current Status
Observed Changes
| Date | Status | Server |
|---|---|---|
| 9/6/2026, 12:16:37 AM | Active | nginx |
| 9/2/2026, 3:50:15 PM | Active | nginx |
| 8/29/2026, 3:04:47 AM | Active | nginx |
| 8/28/2026, 12:28:44 AM | Active | nginx |
| 8/5/2026, 4:15:50 AM | Inactive | Unknown |
| 8/1/2026, 9:33:42 AM | Inactive | Unknown |
| 7/5/2026, 6:36:59 PM | Active | nginx |
| 7/4/2026, 1:55:35 PM | Active | nginx |
| 6/22/2026, 10:06:26 AM | Active | nginx |
| 6/10/2026, 7:16:55 AM | Active | nginx |
| 5/15/2026, 11:11:44 AM | Active | nginx |
| 3/30/2026, 7:34:44 PM | Active | nginx |
| 3/27/2026, 7:31:07 PM | Active | nginx |
| 3/24/2026, 8:52:38 PM | Active | nginx |
| 3/13/2026, 4:24:47 AM | Active | nginx |
| 2/8/2026, 5:34:43 PM | Inactive | Unknown |
| 1/28/2026, 11:43:23 AM | Active | nginx |
| 1/10/2026, 7:40:46 PM | Inactive | Unknown |
| 11/10/2025, 10:21:54 PM | Active | nginx |
| 7/24/2025, 5:36:52 PM | Inactive | Unknown |
| 5/29/2025, 4:39:34 AM | Active | Parking/1.0 |
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, CNAME, TXT 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.
What this page reports
- Last status change: When we last saw a site switch between reachable and unreachable
- Last downtime: When a site was most recently seen down, and whether it has come back
- Server and meta information: The server software, page title and meta tags we last observed
We check a domain at most once a day and record an observation only when something changes, so these are the times a change was seen rather than the exact moment it happened. For continuous, minute-by-minute checks with alerting, use website monitoring.
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.