Website Uptime Monitor
Monitor website availability and server information for any domain
18183sf.com
Uptime & Server Information
Current Status
Observed Changes
| Date | Status | Server |
|---|---|---|
| 8/14/2026, 6:18:56 AM | Active | Unknown |
| 7/7/2026, 7:16:05 PM | Active | Unknown |
| 6/21/2026, 2:56:19 AM | Active | Unknown |
| 6/18/2026, 10:21:10 AM | Active | Unknown |
| 5/31/2026, 7:58:17 AM | Active | Unknown |
| 5/16/2026, 12:14:42 PM | Active | Unknown |
| 3/18/2026, 6:16:02 PM | Active | Unknown |
| 3/17/2026, 6:09:12 AM | Inactive | Unknown |
| 3/2/2026, 6:35:47 AM | Active | Unknown |
| 2/6/2026, 5:11:11 AM | Inactive | Unknown |
| 2/3/2026, 9:02:40 PM | Inactive | Unknown |
| 1/30/2026, 7:35:06 AM | Inactive | Unknown |
| 1/24/2026, 3:00:28 AM | Inactive | Unknown |
| 1/12/2026, 3:19:00 PM | Active | Unknown |
| 1/3/2026, 6:29:02 AM | Inactive | Unknown |
| 12/29/2025, 2:21:19 PM | Inactive | Unknown |
| 12/24/2025, 2:47:28 PM | Inactive | Unknown |
| 12/18/2025, 4:17:54 AM | Active | Unknown |
| 12/16/2025, 1:03:17 AM | Active | Unknown |
| 11/30/2025, 10:27:12 PM | Active | Unknown |
| 10/6/2025, 4:30:31 PM | Active | Unknown |
| 9/18/2025, 4:23:02 PM | Active | Unknown |
| 9/18/2025, 4:23:01 PM | Active | Unknown |
| 9/17/2025, 9:38:44 AM | Active | Unknown |
| 8/19/2025, 5:35:12 PM | Active | Unknown |
| 8/14/2025, 2:12:48 AM | Inactive | Unknown |
| 6/26/2025, 9:08:30 PM | Active | Unknown |
| 6/1/2025, 3:26:42 PM | Active | Unknown |
| 5/15/2025, 9:00:06 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.
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.