Website Uptime Monitor
Monitor website availability and server information for any domain
21st.careers
Uptime & Server Information
Current Status
Historical Data
| Date | Status | Server |
|---|---|---|
| 8/18/2026, 2:50:16 PM | Active | Unknown |
| 8/2/2026, 12:05:21 AM | Active | Unknown |
| 7/2/2026, 10:28:49 PM | Active | Unknown |
| 6/27/2026, 6:03:47 AM | Active | Unknown |
| 6/20/2026, 11:17:04 PM | Active | Unknown |
| 5/22/2026, 8:54:26 PM | Active | Unknown |
| 5/20/2026, 8:02:58 AM | Active | Unknown |
| 4/24/2026, 10:57:05 AM | Active | Unknown |
| 4/6/2026, 7:56:29 PM | Active | Unknown |
| 4/4/2026, 11:56:13 AM | Inactive | Unknown |
| 2/23/2026, 8:26:44 AM | Active | Unknown |
| 2/22/2026, 12:35:46 AM | Inactive | Unknown |
| 1/23/2026, 5:07:58 AM | Inactive | Unknown |
| 1/21/2026, 5:12:56 AM | Inactive | Unknown |
| 1/17/2026, 3:17:49 AM | Inactive | Unknown |
| 1/7/2026, 1:41:08 AM | Active | Unknown |
| 1/4/2026, 11:54:54 PM | Inactive | Unknown |
| 12/30/2025, 9:55:39 PM | Inactive | Unknown |
| 12/13/2025, 3:23:01 PM | Active | Unknown |
| 12/5/2025, 11:58:48 AM | Active | Unknown |
| 12/1/2025, 7:45:43 PM | Active | Unknown |
| 11/29/2025, 5:33:55 AM | Inactive | Unknown |
| 11/22/2025, 10:42:26 AM | Active | Unknown |
| 11/9/2025, 7:46:52 AM | Active | Unknown |
| 11/7/2025, 6:47:13 PM | Active | Unknown |
| 11/4/2025, 2:45:11 PM | Active | Unknown |
| 11/2/2025, 8:05:56 AM | Active | Unknown |
| 11/1/2025, 6:46:03 AM | Active | Unknown |
| 10/22/2025, 8:22:22 AM | Active | Unknown |
| 10/18/2025, 3:02:56 PM | Active | Unknown |
| 10/13/2025, 2:37:29 AM | Active | Unknown |
| 10/8/2025, 7:42:04 PM | Active | Unknown |
| 10/5/2025, 9:26:52 PM | Active | Unknown |
| 10/4/2025, 8:39:14 AM | Active | Unknown |
| 10/2/2025, 11:09:58 AM | Active | Unknown |
| 9/29/2025, 8:14:56 PM | Active | Unknown |
| 9/25/2025, 5:26:24 PM | Active | Unknown |
| 9/21/2025, 10:09:04 PM | Active | Unknown |
| 9/16/2025, 10:41:48 PM | Active | Unknown |
| 9/12/2025, 1:42:32 PM | Active | Unknown |
| 9/8/2025, 6:44:51 PM | Active | Unknown |
| 9/6/2025, 5:31:25 PM | Active | Unknown |
| 9/4/2025, 12:02:23 AM | Active | Unknown |
| 8/31/2025, 2:10:49 PM | Active | Unknown |
| 8/26/2025, 3:43:35 PM | Active | Unknown |
| 8/19/2025, 4:13:36 AM | Active | Unknown |
| 7/13/2025, 9:17:41 AM | Inactive | Unknown |
| 7/9/2025, 8:32:26 AM | Active | Unknown |
| 6/27/2025, 5:44:49 AM | Active | Unknown |
| 6/18/2025, 8:43:19 PM | Active | Unknown |
| 6/14/2025, 2:16:21 AM | Active | Unknown |
| 6/6/2025, 12:58:39 AM | Active | Unknown |
| 5/24/2025, 6:01:38 PM | Active | Unknown |
| 5/22/2025, 2:04:05 PM | Active | Unknown |
| 5/18/2025, 3:22:47 PM | Active | 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, 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.