Website Down Checker

See whether a site was up at our last check and when it last went down.

Current Status

Status
Active
Server Type
Nginx Microsoft-HTTPAPI/2.0
Page Title
开云线上(中国)官方网站
Meta Description
开云线上(中国)官方网站【美加墨2026年官方推荐:tiyu9898.com,tiyu8989.com】是经市政府批准,于1992年3月成立的国有独资企业集团,注册资金8.10亿元。开云线上(中国)官方网站是专业从事实验室整体规划,空间设计,生产制作,安装调试,售后服务为一体的综合性公司。总部位于西安市朱雀大街50号,毗邻大雁塔、曲江、等,人文地理优越,造就了20多位员工的优秀品质,从业务部到设计部,从生产基地到安装售后,都形成了一套完整默契的独立运行模式。
Meta Keywords
开云线上(中国)官方网站
Last Checked
20 hours ago
Last Status Change
Came back up — 2 months ago (8/11/2026)
Last Downtime
First seen down 16 months ago (6/18/2025), back up 2 months ago

Observed Changes

DateStatusServer
8/11/2026, 4:42:44 AMActiveNginx Microsoft-HTTPAPI/2.0
5/15/2026, 12:04:36 PMInactiveUnknown
1/29/2026, 7:08:39 PMInactiveUnknown
1/19/2026, 10:05:25 AMInactiveUnknown
1/13/2026, 9:48:03 PMInactiveUnknown
1/8/2026, 11:17:19 PMInactiveUnknown
11/26/2025, 4:03:39 AMInactiveUnknown
11/6/2025, 2:43:47 PMInactiveUnknown
8/13/2025, 9:11:12 AMInactiveUnknown
7/11/2025, 6:57:08 AMInactiveUnknown
6/18/2025, 8:45:03 AMInactiveUnknown

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 monitor with 7-day uptime percentage, failed checks, average latency by region, and daily outages

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.

Monitor uptime free

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.