Checking HTTP/1.1, HTTP/2 with curl --head --verbose Command

How to use curl --head --verbose to confirm whether a URL responds over HTTP/1.1 or HTTP/2, with sample output.

[cURL] GET/POST/PUT/DELETE

A short memo on using cURL's -X option to send GET / POST / PUT / DELETE requests.

[curl] Options for Sending RESTful Requests

A memo of reference links summarizing curl options for sending RESTful requests.

How to Save Cookies and Maintain Sessions with cURL

How to keep a login session alive with curl by saving cookies with -c and reusing them with -b.

How to specify TLS version with cURL

How to probe TLS 1.0 / 1.1 / 1.2 support individually using cURL's --tlsv1.x options.

Specify UserAgent with curl command

How to set the User-Agent header with curl's -H option, using the Facebook crawler as an example.