Forum Moderators: phranque
set up your site to parse *.html files with the PHP engine. then you can use PHP code with the .html extension, and none of your backlinks will break.
welcome to the world of PHP. you'll like it.
that's a major mistake if you care about your pages ranking, I've tested this stuff with single item query strings versus static appearing .html urls and the .html urls skyrocketed the test pages to top 10 almost instantly. That was for some pretty decent search terms too. Before going static looking url the pages had pr 0 and didn't rank for anything, same content, only thing that changed was the url.
Use mod_rewrite and then reprogram the site so the url output creates clean urls. Plus query string urls are just ugly.
domain.com/product-352.htm is even better, the underscore is not treated as a word separator by the bots, especially google. Might as well get the 'product' file name in there. But yes, that's what I mean.
What old pages? the ones with query string urls? You mod_rewrite 301 them to the new format. Older pages, pre change? same thing, mod rewrite them. Make sure you do the rewrite rules correctly though, if you or your programmers aren't up on them, pay someone to do it for you, mistakes can be fatal, and it's not easy to do it right, correctly done the switch is almost invisible, I've done that on several sites when redoing them and saw no real change in serps at all.