Check the headers sent by a web server using curl

If you ever wanted to easily and quickly check the headers sent by any web server you can do it with curl. It comes preinstalled in OS X as well as in many Linux distributions, and it makes this operation really straightforward.

Curl in action showing HTTP headers

Just launch

curl -I http://somesite.com/

and you’ll get every response header sent by the site. Easy, huh?

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