Understand what are UTM tags and how to properly implement them.

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URL syntax & encoding


URL generic syntax

Every URL conforms to a generic syntax that consists of a hierarchical sequence of 5Β components:

URI = scheme:[//authority]path[?querystring][#fragment]

URL = protocol:[//hostname]/path/filename[?querystring][fragment]


URL allowed characters

A URL is composed from a limited set of characters belonging to the US-ASCII character set. These characters include:

URL restricted characters

Some characters are not allowed to be placed directly within URLs: