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
广州聚氨酯助剂厂家|有机锡催化剂 T12 脱水剂AR-5 UV抗氧稳定剂 - 广州智发新材料有限公司
Meta Description
广州智发新材料专业生产聚氨酯全系列助剂:有机锡催化剂、聚氨酯脱水除水剂、抗黄变助剂、尼龙专用抗氧化剂、树脂减色剂、UV光稳定剂;广州本地助剂生产工厂,可提供样品、MSDS、产品说明书,支持外贸出口,欢迎来电咨询试样。
Meta Keywords
广州聚氨酯助剂,有机锡催化剂ZF4100,T12凝胶催化剂,聚氨酯脱水剂Additive TI,AR-5除水剂,7030抗黄变剂,尼龙抗氧化剂,DC12树脂减色剂,UV紫外线吸收剂,PU涂料塑胶助剂厂家,PU弹性体助剂
Last Checked
just now
Last Status Change
No change observed
Last Downtime
Never observed down

Observed Changes

DateStatusServer
11/2/2026, 8:56:11 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.