Website Uptime Monitor

Monitor website availability and server information for any domain

palomar-observatory.org

Uptime & Server Information

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

Current Status

Status
Active
Server Type
Apache/2.4.6 (Red Hat Enterprise Linux) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.4.16 mod_wsgi/3.4 Python/2.7.5
Page Title
Welcome to Palomar Observatory
Meta Description
Palomar Observatory near San Diego, California, is a center of astronomical research owned and operated by Caltech. The Observatory is home to three active research telescopes: the 200-inch (5.1-meter) Hale Telescope, the 48-inch (1.2-meter) Samuel Oschin Telescope, and the 60-inch (1.5-meter) telescope. Research at Palomar Observatory is pursued by a broad community of astronomers from Caltech and other domestic and international partner institutions. The Observatory is also a popular destination in Southern California and receives tens of thousands of visitors a year from all over the world. Please be sure to check our guided tour schedule beforehand to ensure a more enjoyable visit.
Meta Keywords
palomar,observatory,about,visit,observe,community,media
Last Checked
just now
Last Status Change
Came back up — 3 months ago (6/25/2026)
Last Downtime
First seen down 8 months ago (2/9/2026), back up 3 months ago

Observed Changes

DateStatusServer
9/10/2026, 1:29:41 AMActiveApache/2.4.6 (Red Hat Enterprise Linux) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.4.16 mod_wsgi/3.4 Python/2.7.5
6/25/2026, 5:38:35 AMActiveApache/2.4.6 (Red Hat Enterprise Linux) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.4.16 mod_wsgi/3.4 Python/2.7.5
3/15/2026, 6:45:04 PMInactiveUnknown
2/14/2026, 8:27:47 PMInactiveUnknown
2/9/2026, 11:19:50 PMInactiveUnknown
1/18/2026, 5:25:46 AMActiveApache/2.4.6 (Red Hat Enterprise Linux) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.4.16 mod_wsgi/3.4 Python/2.7.5

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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.

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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.