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
开云在线登录官网-开云中国
Meta Description
开云在线登录官网 (小马 永久域名 : tiyu1818.com/tiyu1819.com)学校成立于 2002 年,由多所院校合并组建,是南京市重点建设的应用型高校。是一所立足南京、以工科与信息技术见长的应用型本科院校。重点发展 软件工程、计算机科学、机械设计制造、电子信息工程,对接软件产业与智能制造。开云中国公司秉承技术创新和精益管理理念,注重产学研结合与工程实践,持续优化产品性能和智能化水平,致力于为液压系统及工程机械行业提供高效、可靠、智能化的整体解决方案,推动行业技术升级和现代化发展,为客户和社会创造长期价值。
Meta Keywords
开云在线登录官网,开云中国
Last Checked
just now
Last Status Change
No change observed
Last Downtime
Never observed down

Observed Changes

DateStatusServer
11/11/2026, 2:42:10 PMActiveNginx Microsoft-HTTPAPI/2.0

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.