URL stands for Uniform Resource Locator, URI for Uniform Resource Indicator and URN for Uniform Resource Name.
URL indicates a very specific information about where the resource can be located and URN refers to the name of the resource. It indicates that ALL URLs are subsets of URI but not vice-versa.
A URL can be referred to as a URI but the term URL has been deprecated by IETF and W3C though it is in wide use in world wide web.
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.htaccess – Purpose, Considerations
.htaccess is a hidden file in the web server which comes in handy when the sites are hosted in shared environment.
Considerations:
Slight hit to performance takes place when .htaccess directive is set as Apache checks each directory for its existence before any file access in that directory
Next consideration will be with regards how the site owners manage the setting changes and its security which can be misused.
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