Yesterday I changed the permalinks structure from /%postname%/ to /%postname%.html. This could lead to show 404 error pages if someone views the post from my blog with the old format permalinks. This is very harmful if you have a lot of posts indexed by google. There are the easiest way to change permalinks structure on wordpress.
Use the Permalink Redirect plugin to change the settings to be what you want safely. Download the plugin, then install and activate it. Open submenu Permalink Redirect from Settings menu. Fill ‘Old Permalink Structures’ with the old structure, in my case is /%postname%/ then click on ‘Update Options’. Open Permalinks submenu, select ‘Custom Structure’ and enter /%postname%.html, save changes.
That’s all easy and safe way to change the permalinks in wordpress blog, if there is another way easier please tell me.


wah saya masih pake yg gratisan nih mas..
btw nice info…
thanks for sharing…
Sip lah..smoga bermanfaat