Checking URL Validity

[cryptojojo]

I have a tricky question.

I wrote a very simple program that creates plausible URLS with parameters that I have placed and want to know which of these combinations are valid URLS on the regular internet and which aren’t.

Sorry if this blurs the real question, which is: using c++, how can I heck if a URL that I’ve generated randomly is a valid web address or not.

For all I know this may be impossible (or extraordinarily difficult), if so please let me know.

Thanks.

[helios]

What level of validity are we talking about? Do you want to know if there could ever exist something at a given URL, or do you want to know if there actually exists something at that URL?

[cryptojojo]

I'm looking for a true if there actually exists something at that URL and a false if the browser cannot find the server.

[helios]

Use libcurl to make a GET request with the URL.

[SamuelAdams]

When you say valid, do you mean registered, in use or simply possible ?

[cryptojojo]

To SamuelAdams, read what I said to helios, I answered this question.

[modoran]

Even if you use libcurl to actually make a request to the server, be aware that some servers are configured to reply with 200 OK even they display their 404 Not Found error page.