i have notice that Google and Yahoo show different site Back links when we check by operator. what is it reason and which is true response.
Search engines uses different algorithm to index backlinks & I think its normal to give different results by different search engine. But everytime when I need to check my sites backlink I perfer yahoo site explorer.
Google and Yahoo are different SE company with different algorithm on gathering backlinks and different point of view and way to show backlinks. Google show relatively few or portion of entire backlinks they've indexed while Yahoo shows about 1000 of what they've fetched.
Both of them are using a completely different algorithm handling with websites. But both of them still do not show the true number of backlinks. If you really want to see then you have to see via their tools - Google Webmaster Tools / Yahoo SiteExplorer.
Both are different search engines & both follow different algo. That's why both show different backlinks.
both have different algorithm... its an approach on how they are going to consider any links that they can crawl or index for a particular site.. so its really normal...if they are totally identical then i don't think there is a reason to have both..
google is used by more number of users and there is no compulsion to show all the search engine is same ,that depends on the user
This is because they both have different algorithms of giving importance to each backlinks. We can't compare them on basis of backlinks they offer, this is why getting rank in Google is really difficult as in Yahoo.
each search engine use different algorithm to crawl the websites and indexed them. so it may possible that yahoo may h ave crawled low links
I believe Google tends to show higher quality links. Yahoo tends to show nearly every link. Not 100% certain on this. But this is what I've noticed.
Regardless of which is showing what link. This is a very good example of understanding the web. When trying to get backlinks get them from high quality places and try to get them from everywhere.. because you never know what will not show up in google might show up in yahoo and vice versa, and what about bing? Might as well just get what you can and be happy they see them! Any links is good links even if they are not the same you are still being ranked!
Each search engine use different algorithmic for indexing and searching. it can make lots of traffic.
Because both is different search engine and google don't show all backlinks they gather when crawling your site
I don't agree that yahoo site explorer is the best backlink checker because it shows you every links which you had on other sites.
Google should be more comprehensive statistics, the number of external links on my site are not the same.
I think Google said some time back that they won't display all the links to a website because they could be gamed by competitors (or something similar to that.) But it could also be like a lot of other posters have already said, Google and Yahoo just use different search engine algorithms that value and index backlinks differently.