A site analysis tool told me about my site, Search engines may think www.izap.in and izap.in are two different sites.You should set up a permanent redirect (technically called a “301 redirect") between these sites. Once you do that, you will get full search engine credit for your work on these sites. how can i fix this bug ?
This isn't a bug (if I understand your question correctly) with and without www. are considered different sites in the eyes of a search engine - this blog enter explains how o do a 301 redirect on an Apache server. Hope this helps. http://webdesign-ri.com/web_site_design_and_SEO_blog/web-site-management/using-an-apache-server-for-canonical-redirects/
Well,this isn't a bug.url standardization is more friendly to SE,and do good to the pr value of your site.Therefore, you'd better do a 301 redirection which can make one domain redirect to another permanently.As to the problem which one will be the main domain,you can decide it by yourself.How can you make a 301 redirection?There're kinds of means.For example,you can do it in your hosting control panel if you have one.Also you can do this in .htaccess file if your hosting is shared web hosting.If you're still not clear about this,we can make a further discussion.Or you can contact related technical men to guide you on this.