Assuming the perfect SEO campaign, what kind of turnaround to get into the top 100 and/or top 10 for a keyword with approximately 50 million results in Google?
But to let you know I just launched a site in the "web hosting" space that is very competitive and I am seeing some nice keyword traffic from Google. Are you sure your seo is "perfect" ... that is the tricky part!
What's defined as a perfect SEO campaign? The more optimized your site is and the more incoming quality links you have, the faster you will rank. Easy as that.
The number of results has almost no bearing on competition on how hard a term is to rank for. What's the keyword/phrase? I just landed on the first page for a 78 Million result term and it took 17 days from uploading the website. I also done a 978 Million result term in 7 weeks just recently. So it all depends on the term.
A very long time ago there was an ad campaign for "Tootsie Pops"... with an owl. The Owl was asked "How many licks does it take to get the the center of a tootsie roll tootsie pop". The answer: 1,2,3 then the owl bit into it. The point? If you know the EXACT answer to your question; it still doesn't make any difference. There is nothing as constant as change. And there are way to many variables to make any concrete real assertions. People want EXACT answers to questions that don't have them.
I agree with this. There are some phrases with 2 million that I find I'm at the top of the first page and there are some phrases / keywords on just 20,000 sites that I can't get to the top 100 quite yet. I think it totally depends on the expected income of the search terms. If its like "Buy _____" it could be a lot tougher than something that isn't so sales or product driven.