Website Uptime Monitor

Monitor website availability and server information for any domain

Current Status

Status
Active
Server Type
nginx/1.20.1
Page Title
零信任_安全办公平台_远程安全访问_SASE方案_终端安全-白山云
Meta Description
基于零信任理念和白山云全球边缘网络,「网络+安全+服务+情报」一体化建设,更安全、更快速、更经济地保障企业全球化高效办公,确保分布在全球各地的用户都能随时随地、快速安全地访问企业本地和云上资源。
Meta Keywords
零信任,零信任架构,SASE,SD-WAN,ZTNA,企业网络安全,随时随地安全办公,远程办公,,可信终端,最小访问权限,内网安全访问,终端安全,白山云
Last Checked
just now
Last Status Change
Came back up — just now (10/2/2026)
Last Downtime
First seen down 7 months ago (2/11/2026), back up just now

Observed Changes

DateStatusServer
10/2/2026, 12:44:43 PMActivenginx/1.20.1
2/11/2026, 9:49:12 PMInactiveUnknown
11/21/2025, 10:30:51 AMActivenginx/1.20.1
10/12/2025, 3:09:36 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

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, DNSSEC, CNAME 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

Use the Who.is uptime information to track the availability and server information of websites. This helps track:

  • Website availability and response status
  • Server software and configuration
  • Meta information including titles and descriptions
  • Historical uptime patterns

This information is valuable for website owners, system administrators, and anyone interested in monitoring website reliability and performance.

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.