A URL slug is the readable part of a web address that identifies a page, such as how-to-resize-an-image. Clean slugs are easier to read, share and maintain.
Keep the important words
Use a short phrase that accurately describes the page. Avoid stuffing unrelated keywords into a slug just to make it longer.
Use lowercase letters and hyphens
The TheTecTricks URL Slug Generator converts a title to lowercase, removes unsupported punctuation and separates words with hyphens.
Do not change established URLs casually
If a page is already published and indexed, changing its slug can break links. When a URL genuinely needs to move, use an appropriate redirect from the old address to the new one.