hostnag

Check a URL's status, redirects and latency

Paste a URL to see its status code, final address after redirects and latency. It runs once from US East with a 10 second cap, the same runner a monitor uses.

How to read this

Status code
The status the server answered with.
Final URL
Where the request landed after redirects, if it followed any.
Latency
How long the request took, end to end.

Questions

Is this a scan?

No. It makes one request to the URL you name, following redirects, the same as a browser would.

Why is a private address refused?

Private and loopback addresses are refused: a check from outside your network can say nothing useful about them, and hostnag never dials into anyone's network on purpose.

Related

Uptime monitoringWebsites, APIs and anything that answers on a port, checked every minute from up to four places, with a failure confirmed before anyone is paged.

Read

Ping is not uptime monitoring: what ICMP proves, what a TCP connect proves, and why a failure needs a second witnessWhat an ICMP reply proves and what it misses, why a TCP connect on the right port is the first real test, and how a failure is confirmed before anyone is paged.

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