Search results

I have e-commerce site where most pages are dinamically built from a DB (product pages). I would like to know what happens from the search engine point of view, when I update the whole catalogue. All the URLs, infact, are substituted by the new ones, so you have 30k pages disappear and 30k new...

In GWMT I see links pointing at my site, but by inspecting them, nearly all are NOFOLLOW links. I expected only "valid" links to be considered by G. The links are about 3-4 years old (2009), so I can think that they once were "valid" and now they might be nofollow...but in this case why do they...

Which operations are safe to perform without using proxies? I imagine all those that do not rely on search engines, am I right? Can someone draft a list of operations that need proxies and that don't? Thank you.

I was thinking if this could be a good strategy. Sometimes we would like to place a nice post in a forum containing a link to a certain site. But we know that the forum is either moderated or we know that we wouldn't get past the admin's check against spamming. In this case we could try placing...