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 with a 10 second cap, the same runner a monitor uses; the result says where it ran.

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?

A check from the internet can say nothing useful about a private or loopback address, 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 five places, with a failure confirmed before anyone is paged.

Read

Ping is not uptime monitoring: what an ICMP reply proves, and why a failure needs a second witnessAn ICMP reply proves a machine is there. A TCP connect on the right port is the first real test, and a failure needs a second place to confirm it.

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