When you install WordPress, the default permalink structure you have is http://example.com/?p=123 . You can retain this structure if having the shortest URL possible is your priority. Else, you need to change this for better SEO.The most used custom WordPress permalink structure is http://example.com/postname/ .The permalink structure I use is http://example.com/year/month/postname/ . This is good for performance. Also, gives an idea to the user when the post was written. They can also trim the URL like http://example.com/year/month/ or http://example.com/year/ and see archives for that period.If you write posts daily or write many posts a day like in news websites, then … [Read more...]