Website Uptime Monitor

Monitor website availability and server information for any domain

Current Status

Status
Active
Server Type
xx5_28762
Page Title
Optica Publishing Group
Meta Description
Not available
Meta Keywords
Not available
Most Recent Data
0 hours, 0 minutes ago

Historical Data

DateStatusServer
9/2/2026, 8:34:39 AMActivexx5_28762
8/8/2026, 12:51:48 AMActivexx3_98743
7/20/2026, 11:57:06 PMActivexx4_27891
6/11/2026, 7:04:17 AMActivexx3_98743
5/15/2026, 8:19:01 PMActivexx4_27891
5/7/2026, 9:40:41 PMActivexx5_28762
2/16/2026, 12:24:49 AMInactiveUnknown
1/16/2026, 12:27:20 AMInactiveUnknown
1/10/2026, 8:41:05 AMInactiveUnknown
1/3/2026, 1:44:56 PMInactiveUnknown
12/13/2025, 10:32:39 PMActivexx5_28762
12/6/2025, 9:21:52 PMActivexx6_53652
11/12/2025, 5:42:55 AMActivexx6_53652
7/31/2025, 3:37:35 PMActivexx6_53652
5/24/2025, 10:12:10 AMActivexx5_28762

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.