Validate an url with parameters

Question

I’m trying to determine whether or not a given string is a valid url or not. And in my scenario, the url can have parameters:

www.example.com -> OK
example.test -> OK (although there’s no .test TLD)
example.com/page.htm?abc=123 -> OK
xxx/xxx.jpg -> Not OK
xxx -> Not OK

I’ve tried the Uri.TryCreate method, Uri.TryCreate(url, UriKind.Absolute, null);, but it accepts pretty much anything that has an http:// prefix, i.e. “http://xxx/” is OK.

I can’t use an HTTP request to check/ping the site for performance reasons.

Any suggestions?

Why isn't http://xxx OK? See, for example, to. (Your browser may choke on that; you may need to add a trailing period) — SLaks
– SLaks, Commented Oct 2, 2011 at 14:26

SLaks · Accepted Answer · 2011-10-02 14:26:22Z

2

It sounds like you want to call Uri.TryCreate(url, UriKind.Absolute, out result), then check that result.HostName contains a .

answered Oct 2, 2011 at 14:26

SLaks

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1 Comment

Jakob Gade Over a year ago

Thanks, I think your tip did the tricks. I'll play around some more with the Uri object and see if I can something useful out of the properties. :)

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