query: Checking if a external 3rd party site exists
positive_passages.docid: 145108
positive_passages.text: HTTP HEAD Request in Javascript/Ajax?
negative_passages.docid: 86921
negative_passages.text: How do I check if a package is installed on my server?
negative_passages.docid: 79280
negative_passages.text: SPSite.Exists returning true for a just deleted site collection
negative_passages.docid: 34983
negative_passages.text: How do I load a third party PHP library?
negative_passages.docid: 6958
negative_passages.text: How can I check if a program exists from a Bash script?
negative_passages.docid: 144690
negative_passages.text: Check if third-party cookies are enabled
negative_passages.docid: 76864
negative_passages.text: What is the best way to check if a URL exists in PHP?
negative_passages.docid: 105966
negative_passages.text: What should I do when flagging if I don't see the destination site in the list?
negative_passages.docid: 2267
negative_passages.text: How to detect if a script is being sourced
negative_passages.docid: 106999
negative_passages.text: Is cross-posting wrong (to an external site)?
negative_passages.docid: 115187
negative_passages.text: How do I avoid checking for updates for a specific module?
negative_passages.docid: 38784
negative_passages.text: How to PHP server-side check if a url of a web site is valid?
negative_passages.docid: 32251
negative_passages.text: Search for "similar questions" across multiple sites?
negative_passages.docid: 47715
negative_passages.text: How to check if the URL contains a given string?
negative_passages.docid: 86890
negative_passages.text: If url is /store/*
negative_passages.docid: 91447
negative_passages.text: Check if a method exists
negative_passages.docid: 37354
negative_passages.text: "Stack Overflow requires external JavaScript from another domain" message