Canonical URL links

This is what I have to call: innovation! Really great stuff, thanks for the plugin Joost!

The first thing I thought of is how this is going to encourage sites to run their affiliate programmes in-house. The major issue before was the chance one of your affiliate URLs gets indexed rather than your own.

This seems to solve that, allowing for merchants to take any PR gain while losing the risk?

Hey Joost! Awesome work on the plugin! I also use the duplicate content cure plugin by Badi Jones--can I deactivate it, or should I let it be?

Cheers,

Justin

hello
i install this plugin, but i am not sure what it does. I have this rel=cano... on every sub page. For what is this good, if is not duplicate content? On webmaster blog was article about duplcitace and canonical problem and this tag help google to find primary page, what is main pros, if i have this tag on every page if is not duplicate to any other?

I hadn't noticed the Yoast campaign tagging until I replied to this post. From that I see I came here from my RSS reader.

Expect a lot of clutter to be added to website URL's as everyone is now more or less free to do as they please.

i assume you have added this to wordpress' official plugin directory for auto updates in the future?

I have read three different articles on this new revelation from Google/Yahoo/Microsoft. I have no idea. Due to the recommendation of several SEO mentors I am installing your plugin even though I have no idea why...LOL

blessings,
Wendy
Twitter: WendyMerritt

Nice job!!!
I have installed now.
Thank You

This sounds like a great plugin.

I wonder...could you use this method when your adding your posts to multiple categories?

That way you could have your posts show up in multiple categories, but have one dominant category that gets all the PR.

Nice work; it tested out well. One nit to pick on line 192 (globalredirect_goto): Instead of manually building the tag, you really should use drupal_add_link().

drupal_add_link(array(
'rel' => 'canonical',
'href' => url($request, array(
'query' => $query_string,
'fragment' => $fragment,
'absolute' => true,
'alias' => true
))
));

I tested it and it worked fine.

Thanx a lot for your very quick releae.

Didn't catch the answer to Tom's question above: If this is on every header, how is that fixing the duplicate problem? What a wonderful thing if this all works.

a question related to wordpress...

comments pages. they are in wordpress 2.7...

the plugin points to the primary post page even on comment pages... for example:

http://sushubh.net/300-reliance-key-petrol-pump-dhabas/comment-page-3

has a canonical link pointing to

http://sushubh.net/300-reliance-key-petrol-pump-dhabas

i am not sure this is the correct thing to do because comment pages have comments different from the primary post page.

just a thought :)

Thanks Joost. That's very simple, yet effective. Great post. Cheers

nice wordpress plugin

Thank you for this.

This is pretty cool. All the biggies actually agreeing on something for a change. This will make things better.
Rick

Thanks for sharing

A master dupe cleanse with the WP plugin works great.
Thanks Yoast!

Thanks for this great plugin. I really appreciate the plugin.

Thanks for this one Joost.

Thank you for the WP plugin! :-)

I'm using SEO No Duplicate plugin ( http://omninoggin.com/wordpress-plugins/seo-no-duplicate-wordpress-plugin) for canonical issue. Which one is better? SEO No Duplicate plugin or Canonical URL plugin? Thanks

I have installed Canonical URL links plugin, but it changed nothing, I still have 124 duplicate meta description, 48 duplicate tag title. I also have installed robot meta plugin and the plugin prevents google boot to index my latest posts. Now I'm stuck.....

Very nice post. My wife is very much into WordPress lately so I've bookmarked and will show her this post. Thanks for the great info!

So far I always looking for the best way to make my WordPress URL more Google friendly ,and thanks for this post now I could get the mission done and since I need to try this first ,whether this is a good plug in or not ,I will tell here later after trial,but in advance my appreciations for this plugin

Thanks for your drupal module. But that module for Drupal 6.x. What about module for Drupal 5.x? Do you provide it?

Thank you

http://yoast.com/canonical-url-links/ and http://yoast.com/canonical-url-links/?utm_campaign=rss&utm_medium=rss&utm_source=rss - both these urls rank for canonical url links (this might be very obscure term) but canonical kind of works like 301 redirect. Why these two duplicate urls should rank for one keyword on the same page?

I have used these tags a few times and it doesn't seem to make much of a difference.

I'm just about to start a WP blog and was looking for good plugins for SEO, so really nice hit here. Thanks :)

I might be missing something here, don't you just have to add this to your header file:

<link rel="canonical" href="" />

your plugin is obviously doing a lot of stuff manually, is the above code better or worse or equal in it's SEO benefit to your plugin?

brent
@
mimoYmima.com

Exccelent plugin, You're as always innovative!! Great Job Joost.

good wordpress plugin :) thank you

How does this module works?
I tried patched version of global redirect from drupal.org, but it just adds url specified as path alias to meta canonical tag. Is this module different?
I also tried nodewords 6.x-1.x-dev, but it by default puts meta tag canonical to all every page so if it's not specified it defaults to homepage, so it is useless.
Does this module:
- give separate field for meta canonical (separate field - other than path alias field)
- if for any page canonical url is not specified, is header for that page free of canonical tag?

after reviewing this post and the relevant google material i'm still somewhat confused on the correct application of the canonical tag.

let's say i have these urls:
site.com/categoryX/productX
site.com/categoryY/productX
site.com/categoryZ/productX

where productX is 99% identical across categories and the pages in category Y and Z are generated from site.com/categoryX/productX (which is the url i want indexed)

so i would want this tag:

in the category Y and Z pages

the only way for me to do this is to place this tag in the original page to which the canonical tag points. and as a consequence the tag will be placed in all pages generated from the original page and in the original page itself.

is this a correct way to proceed? in other words, is there a downside to the canonical tag pointing to itself?