Website Uptime Monitor
Monitor website availability and server information for any domain
b883.cn
Uptime & Server Information
Current Status
Historical Data
| Date | Status | Server |
|---|---|---|
| 9/4/2026, 1:23:10 AM | Active | nginx |
| 8/27/2026, 7:06:16 PM | Active | nginx |
| 8/17/2026, 4:00:22 AM | Active | nginx |
| 8/11/2026, 12:06:34 AM | Active | nginx |
| 7/27/2026, 5:11:28 PM | Active | nginx |
| 7/22/2026, 3:35:20 PM | Active | nginx |
| 7/15/2026, 3:06:05 PM | Active | nginx |
| 7/13/2026, 1:33:39 AM | Active | nginx |
| 6/19/2026, 3:53:02 AM | Active | nginx |
| 6/9/2026, 3:59:02 PM | Active | nginx |
| 5/31/2026, 1:32:13 AM | Active | nginx |
| 5/22/2026, 3:35:09 PM | Active | nginx |
| 5/21/2026, 5:12:45 AM | Active | nginx |
| 5/19/2026, 7:42:53 PM | Active | nginx |
| 5/16/2026, 12:16:30 AM | Active | nginx |
| 5/14/2026, 10:13:22 AM | Active | nginx |
| 5/8/2026, 9:25:53 AM | Active | nginx |
| 5/6/2026, 9:50:17 AM | Active | nginx |
| 4/22/2026, 5:48:04 PM | Active | nginx |
| 4/13/2026, 1:51:17 PM | Inactive | Unknown |
| 4/1/2026, 11:50:39 PM | Inactive | Unknown |
| 3/19/2026, 5:16:55 PM | Active | nginx |
| 3/10/2026, 10:38:39 AM | Active | nginx |
| 2/17/2026, 10:06:18 AM | Inactive | Unknown |
| 2/7/2026, 3:05:59 AM | Inactive | Unknown |
| 1/19/2026, 2:26:24 PM | Inactive | Unknown |
| 1/12/2026, 12:35:09 AM | Inactive | Unknown |
| 1/4/2026, 7:38:43 PM | Inactive | Unknown |
| 1/3/2026, 2:16:09 PM | Inactive | Unknown |
| 12/31/2025, 6:39:38 AM | Inactive | Unknown |
| 12/28/2025, 2:03:12 AM | Inactive | Unknown |
| 12/26/2025, 9:46:38 PM | Inactive | Unknown |
| 12/18/2025, 2:15:55 AM | Inactive | Unknown |
| 12/9/2025, 3:55:21 AM | Inactive | Unknown |
| 12/1/2025, 9:53:54 AM | Active | nginx |
| 11/22/2025, 6:41:37 AM | Active | nginx |
| 11/7/2025, 6:41:00 PM | Active | nginx |
| 11/6/2025, 4:18:05 PM | Active | nginx |
| 11/5/2025, 11:36:34 AM | Active | nginx |
| 11/3/2025, 4:36:56 PM | Active | nginx |
| 10/27/2025, 2:53:23 PM | Active | nginx |
| 10/14/2025, 9:35:16 AM | Active | nginx |
| 9/26/2025, 10:28:25 AM | Active | nginx |
| 9/23/2025, 3:45:08 PM | Active | nginx |
| 9/20/2025, 11:10:23 PM | Active | nginx |
| 9/13/2025, 4:26:57 AM | Active | nginx |
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.