A permalink is the permanent identifier to a specific weblog post or article. It is often encountered while working with blogs that while one day there may have several entries or posts listed on the homepage of the blog, on the next day all such posts or entries are gone. This is mainly due to the frequent updation of the blog. Here comes the utilization of permalink, which provide an easy way to capture specific references to posts or articles about which bloggers are writing.

Permalink is a type of URL particularly designed to refer to any specific information, which remain permanently unchanged in due course. Permanent links are generally linked to a source outside the organization, which the originating source requires at some point of time to keep control of the vast extensive growth of various websites that may be used by the said organization, both within and outside. In particular, the growth of extensive commercial websites built on database-backed content management systems necessitated deliberate policies with regard to URL design and link permanence.

Previously, before the introduction of permalinks it was a frequent headache for the web users that previously stored URLs referring to a particular fact became invalid after a point of time and the same facts were lost forever. This was a particularly common phenomenon when professional websites began to migrate from internal URL schemes (based on the directories in which static html data was stored) to all dynamic storage where all pages were generated on the fly by a database-backed content management system. On the other hand permalink consists of characters, which represents the date and time of posting, and identifiers such as base URL, thus changing or moving of names do not have any effect on the links and it can be easily traceable later on.