What is Permalink?
A permalink (portmanteau of permanent link) is a URL that points to a specific web page, often a blog or forum entry which has passed from the front page to the archives, or the result of a search in a database. Because a permalink remains unchanged indefinitely, it is less susceptible to link rot.
A permalink is the link to an individual blog post. These are important because if you ever need to link to an exact blog entry (e.g., as part of a carnival), you use the permalink as your link. It’s poor blog etiquette not to use the permalink.
Permalinks frequently consist of a string of characters which represent the date and time of posting, and an identifier which denotes the author who initially authored the item or its subject. Crucially, if an item is changed, renamed, or moved within the internal database, its permalink remains unaltered, as it functions as a magic cookie which references an internal database identifier. If an item is deleted altogether, its permalink can frequently not be reused.
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