Is making use of URL rewritting as opposed to numerous parameters the only means to see to it all web pages are indexed by Google?
I do not think Google claims. It made use of to be real that
test_param_1.html was far better than
index.php?module=test¶m=1 yet I do not think that holds true any longer for Google.
Nonetheless, if your 2 instances web pages are really comparable in material after that you will certainly intend to make use of a rel = "approved" on them so Google recognizes which one is the master. Or else your pagerank will certainly be divided in between the 2.
No, URL rewriting has no favorable impact on creeping or indexing ; sometimes it can also have an adverse result. As an example, several internet sites installed all parameters along with simple message (eg the "title") in the URL when revising them, developing web pages with several feasible URLs (we usually also see session - IDs revised in URLs.).
We did a post on this at http://googlewebmastercentral.blogspot.com/2008/09/dynamic-urls-vs-static-urls.html
Personally, unless you are definitely particular that you have the ability to set it up definitely proper which it has a quantifiable influence on customer contentment (overlook the internet search engine for this!), after that I would highly advise not revising URLs in all. We see numerous large troubles with websites that make use of URL rewriting that you need to actually assume fairly a whole lot concerning this prior to dropping that roadway - - and also absolutely never ever do it simply for a thought internet search engine benefit.