Website Down Checker

See whether a site was up at our last check and when it last went down.

c21.com.hk

Uptime & Server Information

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

Current Status

Status
Active
Server Type
Apache
Page Title
C21堅誠地產
Meta Description
C21堅誠地產 - 提供堅尼地城、薄扶林 樓盤資訊、成交紀錄、按揭計算、網上放盤、地產新聞、屋苑走勢。
Meta Keywords
C21堅誠地產, 堅尼地城,薄扶林, 地產, 地產代理, 地產AGENT, 地產公司, 香港地產, 地產網, 香港地產網, 香港地產網站, 房地產, 香港房地產, 房產, 香港房地產網, 物業買賣, 物業代理, 物業, 買樓, 租樓, 賣樓, 搵樓, 二手樓, 網上搵樓, 香港搵樓, 香港買樓, 租屋, 租屋網, 香港屋網, 租屋網站, 香港租屋, 香港租屋網, 租屋香港, 樓盤交易, 新盤, 樓盤, 租盤, 放盤, 筍盤, 居屋, 屋苑, 洋樓, 複式, 複式單位, 豪宅, 商廈, 甲級, 寫字樓, 置業, 舖位, 工商舖, 地產街, 中原, 美聯, 世紀21, Kennedy Town, Pokfulam, Property, property agency, property agent, real estate, hong kong property, hk property, real estate agent, property agent in hong kong, office
Last Checked
just now
Last Status Change
No change observed
Last Downtime
Never observed down

Observed Changes

DateStatusServer
7/12/2025, 12:14:24 PMActiveApache

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.