Website Uptime Monitor

Monitor website availability and server information for any domain

Current Status

Status
Active
Server Type
Apache
Page Title
(주)대성건설 | 종합건설 기업, 안전·품질 책임시공
Meta Description
건축·토목·조경 등 다양한 프로젝트 경험을 바탕으로, 철저한 품질관리와 안전시공으로 신뢰를 쌓아온 (주)대성건설입니다.
Meta Keywords
대성건설, 건설사, 종합건설사, 건축시공, 토목공사, 조경공사, 인프라공사, 기반시설공사, 공장신축, 물류창고건축, 상가신축, 주택신축, 리모델링공사, 구조보강공사, 부산건설사, 부산건축시공, 부산토목공사, 경남건설사, 공공공사, 관급공사, 시공전문업체, 건설프로젝트, 품질관리, 안전시공
Last Checked
just now
Last Status Change
No change observed
Last Downtime
Never observed down

Observed Changes

DateStatusServer
9/7/2026, 10:54:49 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

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.