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
webserver
Page Title
首页-中国机械科学研究总院集团有限公司
Meta Description
中国机械科学研究总院集团有限公司(以下简称中国机械总院)的前身是机械工业部机械科学研究院,成立于1956年新中国建设时期。1999年按照“国科发政字(1999)197号文”的要求,将原机械工业部直属的从事基础共性技术研究与开发的一批研究所划入机械总院整体转制为中央直属企业, 2003年机械总院成为国资委监管的中央直属科技型企业集团。
Meta Keywords
中国机械科学研究总院集团有限公司,中国机械总院
Last Checked
just now
Last Status Change
Came back up — just now (11/7/2026)
Last Downtime
First seen down 20 days ago (10/17/2026), back up just now

Observed Changes

DateStatusServer
11/7/2026, 8:42:42 AMActivewebserver
10/17/2026, 1:41:49 PMInactiveUnknown
10/16/2026, 12:31:22 AMActivewebserver
9/7/2026, 3:21:14 PMInactiveUnknown
9/3/2026, 7:48:37 AMInactiveUnknown
8/5/2026, 4:52:17 PMInactiveUnknown
7/8/2026, 12:57:09 AMInactiveUnknown
6/27/2026, 2:14:56 PMInactiveUnknown
6/20/2026, 5:42:24 AMInactiveUnknown
5/2/2026, 9:35:45 PMInactiveUnknown
2/19/2026, 11:37:18 PMInactiveUnknown
2/11/2026, 11:35:09 AMInactiveUnknown
1/25/2026, 5:53:40 PMInactiveUnknown
1/6/2026, 2:02:22 AMInactiveUnknown
12/15/2025, 1:44:37 PMInactiveUnknown
9/24/2025, 7:46:30 AMInactivewebserver
8/1/2025, 6:02:02 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.

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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.