How do you know if a site has canonicalization issues and what are SEO consequences? like in terms of link building and indexing of the site? Are there tools to see if a site is indeed having problems of canonicalization?
Do a site:www.yourdomainhere.com to see how the site is indexed. If both the www and non-www versions are indexed, you might have a problem. The best practice is to redirect either the www or non-www version to the other using a 301. Also, make sure that you don't have / and /index pages that exist. Don't guess at whether you have a problem. Take 10 minutes and prevent it from happening.
if you have dynamic site then when your open your site a session id created itself. google take it in many webpages and put it in suppliment result because of url canoniclisation.
now there is no canonical issues with index. www. and non www. url. google has solved this problems..... around 8 month ago, it used to be canonical issued with that
Thank you for all your tips guys. I really appreciate it and with hurlinghamclinic, i heard about what you said here but I'm not sure and since you gave it here, i'd like to trust you on this one. one question though.... with cannonicalization issues resolved by Google, does this mean that even if I don't do any redirect 301 from the with www to the non www, i still have nothing to worry? thank you for your help.
Over the years google have coped and choked on this problem. Even when they say that they have fixed it it does not take long for the problem to resurrect itself. To make certain 301 the one you dont want to the one you do RewriteEngine On RewriteCond %{HTTP_HOST} ^url.co.uk RewriteRule (.*) http://www.url.co.uk/$1 [R=301,L]
Great tip here ukseo and i must admit you are indeed seo specific too. really thanks and I appreciate it so much for the effort to help a fellow who is lost. cheers ! - -
no worries remeber to check the server headers, you are looking for a 200 from the one you want and a 301 from the other