Website Uptime Monitor

Monitor website availability and server information for any domain

sesd.org

Uptime & Server Information

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

Current Status

Status
Active
Server Type
cloudflare
Page Title
Home - Sunnyvale School District
Meta Description
Sunnyvale School District - a learning community in Santa Clara County, California comprised of a comprehensive preschool program, eight elementary schools serving students in transitional kindergarten through fifth grade, and two middle schools serving students in sixth through eighth grade. Our Promise is every student is known by name, strength and need, ready to excel in high school and beyond, and to lead a life of joy and purpose.
Meta Keywords
Home, Sunnyvale School District
Last Checked
just now
Last Status Change
Came back up — 15 days ago (9/24/2026)
Last Downtime
First seen down 8 months ago (1/13/2026), back up 15 days ago

Observed Changes

DateStatusServer
9/24/2026, 7:19:32 PMActivecloudflare
1/22/2026, 10:16:07 PMInactiveUnknown
1/13/2026, 10:28:23 PMInactiveUnknown
3/21/2025, 11:22:06 AMActiveMicrosoft-IIS/10.0

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.