Website Uptime Monitor

Monitor website availability and server information for any domain

Current Status

Status
Active
Server Type
Unknown
Page Title
YBM 올인올 통합사전
Meta Description
어학교육의 Know-how가 녹아있는 방대한 사전 Data를 보유하고 있습니다. 지금 사전의 세부 정보 및 가격을 문의해 주세요.
Meta Keywords
영어사전, English Dictionary, 어휘 데이터베이스, 일본어사전, Japanese Dictionary, 중국어사전, Chinese Dictionary, 日本語辞書, 汉语词典
Most Recent Data
0 hours, 0 minutes ago

Historical Data

DateStatusServer
8/5/2026, 8:56:35 PMActiveUnknown
7/20/2026, 5:51:17 AMActiveUnknown
4/4/2026, 4:35:58 PMInactiveUnknown
3/17/2026, 11:36:58 AMInactiveUnknown
2/26/2026, 6:28:00 PMInactiveUnknown
2/23/2026, 2:16:04 PMActiveUnknown
2/20/2026, 9:26:20 AMInactiveUnknown

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.

Metrics we monitor

  • Uptime percentage: The percentage of time your website is accessible
  • Response time: How quickly your server responds to requests
  • Status codes: HTTP response codes indicating server status

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.