Hey guys, I was wondering how does Google judge the relevancy of 2 websites? Let's say your site is about travel and you exchange links with a site that uses the keyword holidays instead, will Google know that these 2 sites are content-relevant? even though they use completely different keywords? or does Google only compare keyword by keyword in the meta tags and titles? What about if you have a site about Mathematics and you exchange links with a site that talks about Physics, it is technically relevant but will Google consider it relevant and give them good value for the link exchange? I am really curious about this... Cheers
Well I'm guessing google is clever thus it has been "trained" to acknowledge related terms when calculating relevancy. ie. computer and technology are related thus there is some relevancy in that
Google is based on a technology called PageRank. If you want to find more information, I would suggest reading wikipedia which describes the technology in more detail. Basically, it stems from the idea of citations in academia. That is, if your research is referred to in other papers chances are good that you have something valuable and informative for that particular topic. Google uses one of the basic underlying principles of the web's linked nature to provide that relevant information to you as a search result for the topic you searched.
Google is like Wikipedia in a way - things are true if they exist. So in Wikipedia, if you write it down, it's "true" even though we may know its false. Across the millions of sites though, truth usually wins out and if tons of math sites link to physics sites and vice versa, Google knows that they are relevant. So if it is happening, its true. SEO can kind of effect this a little by persuading Google of what is "true" even though it may not be. Good SEO consultants stick to what is actually true though, and overall, the truth always wins out.
I would guess that Google is able to discern that holiday and travel are related subjects, mathematics and physics would be different as subjects, but they would still be in group academia. Basically, Google is supposed to know such things, I wonder how Bing/Yahoo treats them.
Alot of people say yes it does check the relevance of two sites but I find the important thing is to have relevant anchor text leading to your site!
I don't know how Google handles this.. Is this a private issue... I think Google has a formula for this... I am not sure..
huh? PageRank has NOTHING to do with relevancy and keywords. I think you need and read about it at wikipedia