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googlewebmastercentral. blogspot. com/2008/09/dynamic-urls-vs-static-urls.html
Here some texts from that article
Be serious, DON'T INSTALL THIS MOD as the search engine is getting more intelligent.
Funny... 2008 in computer years is almost four generations.
I too dabble in the mystical SEO arts, and have most of my client sites up in the top 10 with organic growth. (PITA!)
However, I can say with empirical proof that using this DID get about 200+ MORE pages (for one site) recognized by The Google and others, whereas for six months previously they were not.
After changing the URL's and resubmitting sitemaps, it was less than a day before the included "url's in index" number started jumping. One site has gone from about 30 pages included, to now over 500. AND, the only thing changed was the addition of this mod.
I suppose I could turn it off and resubmit and see what happens... :shocking:
Just as a whim, on one site I put in just one (1) funny keyword term, and added it as an alt-text on one (1) image... before the mod - nothing... no love from any of the Engines. After, you might ask? Goog 'Zombie Emergency Supplies' and see what Zencart is listed in the #1 spot. chuckle
Technology and SEO coding has come a long ways since 2008 (Grammatical sentence checking - whuh!?!) so it might be valid for then, but "I" believe that a readable url impacts visitors and intelligent engines alike.
Have fun.