Originally Posted by djm0219
That's not really true. The amount of resources used for rewriting URLs is tiny unless you have a really huge set of rewrite rules (which is not the normal case). I don't know where you heard that rewrite is disabled on 99% of shared hosting but that also is not true at all.
Thank for your input in discussion
now that topics looks very interesting. I am not so good in server’s administration but in past I had such experience: I have couple of my own dedicated servers where mod_rewrite is enabled and some for just static data without mod_rewrite... (it is good for graphics, since the traffic costs are minimum).
Once I have decided to move one of my websites (which needs mod_rewrite) to that static server and I have asked admin to enable mod_rewrite... he said that it is impossible since it will make high load of CPU. Of cause we are speaking about servers which has at list 30-50 million hits per day... for example codingforum.com should have up to 100 million hits per day, if they will use mod_rewrite in URL that will use lots of their server's resources.
p.s. As for the shared hostings, probably they have no such experience before
even my friend's forum was continuously closed, for the reason of high resources usage... websites with 10K unique visitors per day is ok but if you will have 100K that is a big problem
I have such experience many times when you buy hosting and they promise you that you will not have any restrictions... but as soon as you mod_rewrite rules will cause high load they will block your account