Check a Website Availability from the Linux Command Line

You can easily test a a website availability from the Linux command line and get the status codes from the web-server using commands like TELNET or CURL.

Check a website availability with CURL

Execute the following command to check whether a web site is up, and what status message the web server is showing :
$ curl -Is | head -1
HTTP/1.1 200 OK

Status code '200 OK' means that the request has succeeded and a website is reachable.

Here is an another example that shows you how curl displays different status codes.
$ curl -Is | head -n 1
HTTP/1.1 301 Moved Permanently

You’ll notice that if you visit: you are redirected to, because I prefer to have www in my site's URL. I do this by implementing a 301 Redirect (Permanently moved) for any visitor who goes to

You can also check the availability of a particular page on the site :
$ curl -Is | head -n 1
HTTP/1.1 200 OK

Read more: Status Code Definitions

Check a website availability with TELNET

You can also test website availability and get the response code using telnet command :
$ telnet 80
Connected to
Escape character is '^]'.

You will get the output as follows :
HTTP/1.1 200 OK
Server: nginx/1.1.10
Date: Sun, 26 May 2013 19:29:46 GMT

That also means that the website is OK.