Is a url valid

Hello,

I'd like to know if a url is valid or not.

For example :

    - http://www.fkhzfziufhzoij.com      is not valid
    - http://www.mathworks.fr            is valid

Do you think it's possible ? thank you

Answer 1

[Geoff Hayes]

The documentation for urlread indicates that you could use the status output variable to indicate if the operation is successful or not.

For your two examples,

 [str,status] = urlread('http://www.fkhzfziufhzoij.com');

returns an empty str and status==0.

Whereas,

 [str,status] = urlread('http://www.mathworks.fr');

returns the HTML for the page in str and status==1.

[Charly]

Is there a reason why your examples don't give the same results on my computer ? I get status==0 for both cases...

[Geoff Hayes]

Are you copying the lines of code exactly as above? What does str return for each? If you paste just the URL into your internet browser, what happens?

[Image Analyst]

I get the same results as Geoff. Can you see anything in your web browser? Maybe it's some firewall issue???