Hey, I am converting a site from a HTML non validating messy Dreamweaver made site to a PHP validating clean hard coded site. My quesion is this, I have 301's setup but how much is this going to effect my rankings? I currently have a lot of number one and two spots for keywords I want, am I going to lose all my positions by now having the PHP extensions?
If you see a drop in your rankings, chances are it'll be temporary at worst. Afterall, what you're telling the search engnes is that the pages have moved to a new location. It's really no different than putting in a a change of address with the post office.
the other solution you can use is Tell Apache to parse all .html files a .php file. Using this method you do not have to change any files extensions or worry about any redirects. To do this, place this code in your httpd.conf file: AddType application/x-httpd-php .php .html