Why Would I Need to Modify my Permalink Suffixes?
The default permalinks are generic and only display the page's assigned number. If you want to make your permalinks appear more professional and personalized, you will need to customize them. Here is an example of what you can do:
Default Formatting: http://www.your-domain.com/?p=123
Optional Formatting: http://www.your-domain.com/recipies/chocolate-chip-cookies/
To learn more about how you can customize your permalinks, visit WordPress.org.
Important: Leaving Permalinks on their default setting will prevent the W3 Total Cache plugin from working.