Website Down Checker
See whether a site was up at our last check and when it last went down.
11tk21.cc
Uptime & Server Information
Current Status
Observed Changes
| Date | Status | Server |
|---|---|---|
| 9/18/2026, 10:31:08 AM | Inactive | Unknown |
| 8/31/2026, 4:33:25 PM | Active | nginx |
| 8/29/2026, 4:59:21 PM | Active | nginx |
| 8/2/2026, 9:37:32 PM | Active | nginx |
| 7/7/2026, 7:32:01 AM | Active | nginx |
| 7/4/2026, 2:40:21 PM | Active | nginx |
| 7/2/2026, 11:18:50 PM | Active | nginx |
| 6/19/2026, 8:18:22 AM | Active | nginx |
| 6/3/2026, 5:32:29 AM | Active | nginx |
| 5/31/2026, 10:53:03 PM | Active | nginx |
| 5/28/2026, 3:24:50 PM | Active | nginx |
| 5/21/2026, 2:57:59 AM | Active | nginx |
| 4/27/2026, 10:05:10 AM | Active | nginx |
| 4/24/2026, 6:15:30 AM | Active | nginx |
| 4/19/2026, 10:58:06 PM | Active | nginx |
| 4/17/2026, 4:29:33 PM | Active | nginx |
| 4/6/2026, 2:18:30 AM | Active | nginx |
| 4/4/2026, 8:48:16 AM | Active | nginx |
| 3/30/2026, 3:50:11 PM | Inactive | Unknown |
| 3/23/2026, 12:00:18 PM | Active | nginx |
| 3/14/2026, 5:01:13 PM | Inactive | Unknown |
| 3/9/2026, 8:11:48 AM | Active | nginx |
| 2/25/2026, 9:13:12 PM | Active | nginx |
| 2/24/2026, 8:28:21 PM | Active | nginx |
| 2/21/2026, 12:57:23 PM | Active | nginx |
| 2/10/2026, 1:42:11 AM | Inactive | Unknown |
| 1/28/2026, 7:06:27 AM | Active | nginx |
| 1/21/2026, 10:12:11 AM | Active | nginx |
| 1/17/2026, 11:24:11 AM | Inactive | Unknown |
| 1/13/2026, 2:26:12 PM | Inactive | Unknown |
| 12/31/2025, 4:50:14 AM | Inactive | Unknown |
| 12/27/2025, 9:26:43 AM | Inactive | Unknown |
| 12/24/2025, 9:39:02 PM | Inactive | Unknown |
| 12/17/2025, 2:47:34 PM | Inactive | Unknown |
| 12/14/2025, 1:44:22 PM | Inactive | Unknown |
| 12/11/2025, 2:23:18 AM | Inactive | Unknown |
| 12/9/2025, 7:23:23 PM | Active | nginx |
| 12/2/2025, 3:53:00 AM | Active | nginx |
| 11/30/2025, 1:38:22 AM | Active | nginx |
| 11/24/2025, 3:07:56 PM | Active | nginx |
| 11/18/2025, 5:03:23 AM | Inactive | Unknown |
| 11/16/2025, 3:45:08 PM | Inactive | Unknown |
| 11/6/2025, 4:06:57 PM | Inactive | Unknown |
| 11/2/2025, 1:02:22 PM | Active | nginx |
| 10/29/2025, 10:18:56 AM | Active | nginx |
| 10/22/2025, 9:21:08 PM | Active | nginx |
| 10/15/2025, 11:43:58 AM | Active | nginx |
| 9/30/2025, 10:59:06 PM | Active | nginx |
| 9/26/2025, 7:26:11 AM | Active | nginx |
| 9/8/2025, 8:14:11 AM | Inactive | Unknown |
| 9/3/2025, 8:15:18 PM | Inactive | Unknown |
| 9/2/2025, 11:10:36 AM | Inactive | Unknown |
| 8/25/2025, 5:26:51 PM | Inactive | Unknown |
| 8/20/2025, 10:31:44 PM | Inactive | Unknown |
| 8/18/2025, 8:58:25 AM | Inactive | Unknown |
| 8/15/2025, 9:25:00 PM | Inactive | Unknown |
| 8/10/2025, 6:20:35 PM | Inactive | Unknown |
| 7/2/2025, 12:01:15 AM | Active | nginx |
| 6/29/2025, 10:11:46 AM | Active | nginx |
| 6/28/2025, 6:56:51 AM | Active | nginx |
| 6/25/2025, 4:09:12 AM | Active | Caddy, nginx |
| 6/22/2025, 2:22:30 PM | Inactive | Unknown |
| 6/16/2025, 1:51:33 AM | Inactive | Unknown |
| 6/1/2025, 8:01:00 AM | Inactive | Unknown |
| 5/29/2025, 4:34:58 PM | Inactive | Unknown |
| 5/23/2025, 11:34:21 PM | Inactive | Unknown |
| 5/22/2025, 8:37:17 AM | Inactive | Unknown |
| 5/5/2025, 6:12:10 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.