Is cancer.gov down right now?

No. cancer.gov looks operational.

It answered our last sweep normally. Checked 15 minutes ago · re-checked every 5 minutes

1endpoint monitored
1reachable now
100%24 h availability
347 msmedian response
Free

Get an email when cancer.gov goes down

Checked every 5 minutes from independent probes. We also tell you when the cloud, CDN or DNS provider underneath cancer.gov has an outage. No account, unsubscribe with one click.

What cancer.gov runs on

Mapped from public DNS, network ownership and published cloud IP ranges. When one of these providers has an outage, cancer.gov is exposed.

HostingNational Cancer Institute
Server locationFrederick, USapproximate, by IP

cancer.gov endpoint

ServiceStatusLatency24h uptime
cancer.govcancer.govup347 ms100%

Recent incidents

No cancer.gov-related provider incident detected in the last 7 days.

How we check cancer.gov

Is this cancer.gov's official status page?

No. It is an independent, outside-in view. Official status pages often confirm incidents late; we probe real service endpoints every five minutes and publish what we see.

When do you say cancer.gov is down?

A single failing request is reported as an error, never as an outage. A service is down after two consecutive failed sweeps, and we declare a provider incident only when several independent services that share the same provider fail together.

Why do other services appear here?

Because they share infrastructure with cancer.gov. When that infrastructure has problems, these are the services most likely to be affected next, even if their own status pages still say everything is fine.

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