how can i determine if anything at the given url does exist
64829
python: check if url to jpg exists
4521
Is there an "exists" function for jQuery?
12071
getting current URL
100597
Extract URL from string
9367
Check if Internet Connection Exists with jQuery?
128571
Determining if a URI is valid using Perl regex
35245
How do I check if file exists in jQuery or pure JavaScript?
93046
How to see if the directory exists?
13386
Access the same page from multiple urls (wildcard)
73685
XPath find if node exists
38053
php check if file exist
90956
Check if element exists in jQuery
38784
How to PHP server-side check if a url of a web site is valid?
19277
Print url only if doi not present
32900
How do I extract query parameters from a URL string in PHP?
50579
How to find out if a file exists in C# / .NET?
40229
How do I check if a variable exists?