Website Uptime Monitor
Monitor website availability and server information for any domain
usf.net.cn
Uptime & Server Information
Current Status
Historical Data
| Date | Status | Server |
|---|---|---|
| 8/24/2026, 7:53:47 PM | Active | Microsoft-IIS/7.5 |
| 7/6/2026, 6:33:29 PM | Inactive | Unknown |
| 6/29/2026, 1:46:50 PM | Inactive | Unknown |
| 5/31/2026, 8:12:44 PM | Active | Microsoft-IIS/7.5 |
| 5/27/2026, 2:11:46 AM | Active | Microsoft-IIS/7.5 |
| 5/21/2026, 9:51:35 PM | Active | Microsoft-IIS/7.5 |
| 5/16/2026, 6:28:50 PM | Active | Microsoft-IIS/7.5 |
| 5/13/2026, 3:39:10 AM | Active | Microsoft-IIS/7.5 |
| 5/7/2026, 6:15:44 AM | Active | Microsoft-IIS/7.5 |
| 5/5/2026, 11:41:47 AM | Active | Microsoft-IIS/7.5 |
| 5/2/2026, 11:39:04 AM | Active | Microsoft-IIS/7.5 |
| 4/27/2026, 1:19:38 PM | Active | Microsoft-IIS/7.5 |
| 3/27/2026, 8:42:48 AM | Active | Microsoft-IIS/7.5 |
| 3/17/2026, 3:42:22 AM | Inactive | Unknown |
| 2/28/2026, 3:19:21 PM | Active | Microsoft-IIS/7.5 |
| 2/7/2026, 5:25:18 PM | Inactive | Unknown |
| 1/26/2026, 6:55:55 AM | Inactive | Unknown |
| 1/23/2026, 8:50:05 AM | Inactive | Unknown |
| 1/21/2026, 4:35:21 AM | Active | Microsoft-IIS/7.5 |
| 1/10/2026, 7:03:36 AM | Inactive | Unknown |
| 1/6/2026, 8:34:34 AM | Inactive | Unknown |
| 12/21/2025, 9:39:14 PM | Inactive | Unknown |
| 12/13/2025, 5:10:59 AM | Active | Microsoft-IIS/7.5 |
| 12/11/2025, 9:28:14 AM | Inactive | Unknown |
| 12/1/2025, 12:00:11 AM | Active | Microsoft-IIS/7.5 |
| 11/26/2025, 3:39:57 AM | Active | Microsoft-IIS/7.5 |
| 11/11/2025, 4:01:59 PM | Active | Microsoft-IIS/7.5 |
| 10/24/2025, 11:11:36 PM | Active | Microsoft-IIS/7.5 |
| 10/6/2025, 4:54:20 PM | Inactive | Unknown |
| 9/15/2025, 1:58:05 PM | Active | Microsoft-IIS/7.5 |
| 7/1/2025, 12:10:21 PM | Inactive | Unknown |
| 6/25/2025, 5:10:49 PM | Active | Microsoft-IIS/7.5 |
| 6/17/2025, 10:33:14 PM | Active | Microsoft-IIS/7.5 |
| 5/30/2025, 12:51:00 PM | Active | Microsoft-IIS/7.5 |
| 5/18/2025, 3:17:40 PM | Active | Microsoft-IIS/7.5 |
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.