MX， network。

7， DNSSEC， 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， 14，。

CAA， 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， and flag it if the issuing authority changes or the certificate is unexpectedly replaced. Monitor uptime free Free for your first domain: uptime。

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。

endorsed by， and 1 days before it expires。

so these are the times a change was seen rather than the exact moment it happened. For continuous。

with a per-region breakdown so a real outage stands out from a regional blip. DNS changes We watch NS， system administrators， use website monitoring. Disclaimer: Who.is is not affiliated with， DNS， and identify the host。

and ASN behind them。

or connected to any of the domains displayed on this page. We provide this information as a public service for informational purposes only. ， minute-by-minute checks with alerting， and whether it has come back Server and meta information: The server software， Dont just check uptime once — watch it 24/7 This is a one-time check. Turn on monitoring and well watch the domains that matter to you continuously。

so a real migration or hijack stands out from routine noise. TLS certificate We warn you 30。

CNAME and A/AAAA records， 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。