Website Down Checker
See whether a site was up at our last check and when it last went down.
11237.cn
Uptime & Server Information
Current Status
Observed Changes
| Date | Status | Server |
|---|---|---|
| 8/28/2026, 9:02:52 PM | Active | nginx |
| 8/25/2026, 12:06:32 AM | Active | nginx |
| 6/23/2026, 6:41:05 PM | Active | nginx |
| 4/24/2026, 9:39:55 PM | Active | nginx |
| 4/21/2026, 9:38:14 PM | Active | nginx |
| 2/22/2026, 10:17:32 AM | Active | nginx |
| 2/20/2026, 2:33:40 AM | Inactive | Unknown |
| 2/14/2026, 2:40:47 AM | Active | nginx |
| 2/6/2026, 4:01:16 PM | Inactive | Unknown |
| 2/3/2026, 10:19:23 AM | Active | nginx |
| 1/30/2026, 5:52:47 AM | Active | nginx |
| 1/23/2026, 12:43:49 PM | Inactive | Unknown |
| 1/17/2026, 10:53:52 PM | Inactive | Unknown |
| 1/12/2026, 11:33:42 AM | Active | nginx |
| 1/9/2026, 3:19:43 PM | Inactive | Unknown |
| 12/12/2025, 1:32:58 PM | Active | nginx |
| 12/8/2025, 10:43:57 AM | Active | nginx |
| 12/7/2025, 1:13:39 AM | Active | nginx |
| 11/26/2025, 7:16:57 PM | Active | nginx |
| 11/21/2025, 5:27:57 PM | Active | nginx |
| 11/12/2025, 10:32:02 PM | Active | nginx |
| 11/2/2025, 2:14:58 AM | Active | nginx |
| 11/1/2025, 1:19:08 AM | Active | nginx |
| 9/16/2025, 4:19:47 AM | Active | nginx |
| 8/28/2025, 6:40:02 PM | Active | nginx |
| 8/12/2025, 10:50:45 AM | Active | nginx |
| 7/10/2025, 4:49:23 AM | Active | nginx |
| 6/30/2025, 11:40:56 PM | Active | nginx |
| 6/11/2025, 6:18:05 AM | Active | nginx |
| 5/18/2025, 11:33:26 PM | Inactive | Unknown |
| 5/10/2025, 4:42:58 PM | Inactive | Unknown |
| 5/7/2025, 7:20:11 AM | Inactive | Unknown |
| 5/6/2025, 5:31:30 AM | Inactive | Unknown |
| 4/25/2025, 9:37:47 AM | Inactive | Unknown |
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
This page shows whether we could reach a website the last time we checked it. We also keep a record of when it went down and came back, so you can see whether an outage is new or has happened before. For each site we show:
- Website availability and response status
- Server software and configuration
- Meta information including titles and descriptions
- Historical uptime patterns
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.