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
Page Title
板状刚玉,烧结板状刚玉,板状刚玉价格,板状刚玉厂家-河南四成研磨科技有限公司
Meta Description
河南四成是一家以生产及销售磨料的厂家,主营板状刚玉、板状刚玉段砂、板状刚玉细粉等,产品质量稳定可靠,量大优惠,如 需了解板状刚玉的价格的请咨询18236795228。
Meta Keywords
板状刚玉.板状刚玉价格,烧结板状刚玉,板状刚玉浇注料,板状刚玉厂家
Last Checked
just now
Last Status Change
Came back up — 3 months ago (7/28/2026)
Last Downtime
First seen down 7 months ago (3/14/2026), back up 3 months ago

Observed Changes

DateStatusServer
7/28/2026, 9:36:39 AMActivenginx
3/14/2026, 9:08:21 PMInactiveUnknown
2/3/2026, 11:39:51 AMActivenginx
11/19/2025, 6:39:46 PMInactiveUnknown
10/27/2025, 4:30:28 PMInactiveUnknown
6/19/2025, 7:44:41 AMActivenginx

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.