curl
curl [-sSIv] [--connect-timeout N] <url>
Risk: Safe
What it does
Speaks HTTP with a web counter and prints its reply.
When to use it
To test a page, its status code and headers, with no browser.
Example
$ curl -sI localhostOnly the top of the reply: status and headers.
$ curl -v localhost/menu.htmlThe whole talk: > is what curl said, < the reply.
$ curl -sS --connect-timeout 5 kedai.exampleGive up after 5 seconds, not about 2 minutes.
Learn it in: HTTP with curl -v · Official docs