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/1.20.1
Page Title
上海螺杆空气压缩机_无油螺杆式_双级螺杆_移动式螺杆_双级压缩机_永磁变频螺杆空压机-萨曼机械(上海)有限公司
Meta Description
萨曼机械(上海)有限公司是一家专业从事空气压缩机设计、制造的现代化企业,主营上海空压机、变频螺杆空压机、永磁变频空压机、螺杆式压缩机、上海螺杆空压机、上海空气压缩机、无油螺杆空压机、无油涡旋空压机、无油螺杆式空压机、螺杆空气压缩机、双螺杆空压机、永磁空压机、两级压缩空压机、双级压缩机空压机、双级螺杆空压机、移动式空压机、移动式螺杆空压机、永磁变频螺杆空压机。
Meta Keywords
上海空压机,变频空压机,变频螺杆空压机,永磁变频空压机,螺杆式压缩机,上海螺杆空压机,上海空气压缩机,无油螺杆空压机,无油涡旋空压机,无油螺杆式空压机,螺杆空气压缩机,双螺杆空压机,永磁空压机,两级压缩空压机,双级压缩机,双级压缩机空压机,双级螺杆空压机,移动式空压机,移动式螺杆空压机,永磁变频螺杆空压机
Last Checked
just now
Last Status Change
No change observed
Last Downtime
Never observed down

Observed Changes

DateStatusServer
9/28/2026, 2:36:09 AMActivenginx/1.20.1

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.