Duplicate Content Cure Plugin for Wordpress
- Posted by B Jones on March 1st, 2007 - Comment on this Post »
Surprise. Your Wordpress Site Isn’t Search Engine Friendly
We have all seen the standard “Wordpress SEO” articles that discuss the obvious things that you can do to optimize your Wordpress blog. Most focus on optimizing titles, permalinks, meta keyword and description tags, and possibly adding a Google sitemap. All of these are important for SEO, but there is one really big one missing.
It turns out that the default Wordpress site structure is extremely un-search engine-friendly. The same archives, categories, built in search, and home page paged navigation that make navigation extremely easy for people, but don’t feature any unique content at all. They usually feature excerpts of the full posts, or complete duplicate copies of the full posts in chronological order. All of these extra pages with the same content repeated again and again, dilute the value of the most important pages on the site: the posts and pages.
It turns out that this is actually a really easy problem to solve by just telling the search engine spiders not to index those pages with duplicate content by adding noindex meta tags. This can be done by modifying the header with a conditional tag to check for page type, and adding the noindex tag when needed.
I could post a tutorial, but I thought it would be nicer if I made a plugin for Wordpress that does the work for you.
Wordpress Duplicate Content Cure
UPDATE
Excluding category pages is now optional. See directions below.
——
Duplicate content cure is a very simple, yet effective SEO plugin that prevents search engines from indexing wordpress pages that contain duplicate content, like archives and category pages.
It does this by adding the noindex,follow meta tag on the problem pages.
<meta name="robots" content="noindex,follow">
It’s really simple, so there’s not really much more to explain.
Installing Wordpress Duplicate Content Cure
1. download the plugin
2. place the file duplicate-content-cure.php in your plugins directory
3. By default, category pages will have the noindex tag added. If you wish to
allow your category paes to be indexed, just change the
$index_category_pages variable in the duplicate-content-cure.php file. See the example below:
Change
$index_category_pages = false;
to
$index_category_pages = true;
4. activate it on the plugins page
That’s it. Say goodbye to those pesky duplicate content pages for good.
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March 1st, 2007 at 3:48 pm
Thanks for making this plugin. I have been concerned about this for some time. I went to google and looked at all the pages they had indexed for my site. Most of them were archive pages rather than post pages. Not good.
I didn’t know it was so easy to tell search engines not to index certain pages. This helps to solve a related issue, namely that ppl who search for something get directed to an archive page and then have trouble finding the content they are looking for. I would like to have the search engines send them to the post page using the permalink.
One problem still remains: sometimes a search will direct them to the home page but the post they are looking for will no longer be shown there. I think that I can partially deal with this by having the home page show only excerpts. Do you have any other suggestions?
March 1st, 2007 at 4:24 pm
[…] solution to this is with a simple plugin called Wordpress Duplicate Content Cure. If the current item that’s requested is a single post, a page, or the home page and it’s not […]
March 1st, 2007 at 6:29 pm
Ken,
I agree. The front page is definitely still somewhat of a problem. I think by only showing excerpts, you are definitely putting a big dent in the problem.
I think I may be moving toward taking all of the post content off of the front page all together, and only show links to the latest posts. I have already created a page called Blog (http://seologs.com/blog/ ) that sort of replaces the home page. It shows excerpts from the latest few posts.
So all I need to do now is find make some unique content for the home page that contains some keywords that are specific to the site in general, and remove those posts all together.
Does that make sense?
March 2nd, 2007 at 12:16 am
[…] Duplicate Content Cure prevents duplicate content in wordpress blogs by adding a noindex meta tag to wordpress pages that don’t contain any unique value, like categories, archives, and paged pages. […]
March 2nd, 2007 at 1:11 am
[…] just installed the Wordpress Duplicate Content Cure. Wordpress creates lots of indifferent pages that are very similar or completely the same. What it […]
March 2nd, 2007 at 3:16 am
[…] Duplicate Content Cure verhindert doppelte Inhalte in WordPress Blogs, indem ein noindex Metatag zu den Seiten hinzugefügt wird, die keine eigenen Inhalte haben, wie Kategorien, Archive und verteilte Seiten. […]
March 2nd, 2007 at 10:05 am
I like this seo plugin for wordpress. Maybe you can create a list of recommended wordpress plugins for seo. I would be interested in the ultimate css template and plugin combos for wordpress to be search engine optimized.
Also btw the tab order for this leave a reply form above is out of wack
Amir
March 2nd, 2007 at 10:29 am
[…] Duplicate Content Cure previene la duplicación de contenido en blogs escritos en Wordpress añadiendo la etiqueta meta noindex a las páginas que no contengan ningún valor único, tales como categorÃas, archivos y paginas compaginadas. […]
March 2nd, 2007 at 2:04 pm
Wordpress Duplicate Content Plugins…
I saw another dup prevent style plugin today on WP-Plugins. I’ve tried a plugin like Duplicate Content Cure some time ago when these fears were going around fairly strongly, and after trying both with and without Dup-Content preventing noindex ta…
March 2nd, 2007 at 6:33 pm
WP Plugin:Duplicate Content Cure…
Duplicate content cure is a very simple, yet effective SEO plugin that prevents search engines from indexing wordpress pages that contain duplicate content, like archives and category pages.
Table of Contents
Name（æ’件å称）
Author（æ’件….
March 2nd, 2007 at 10:31 pm
Does this plugin have any negative effects? I do not have a spider.txt on my site, so will this plugin discourage goo search endine ranking?
March 3rd, 2007 at 5:09 am
Thanks a lot for this plugin! It’s very important! I always been confused about WordPress website structure.
March 3rd, 2007 at 6:14 pm
Charles,
This plugin will discourage the search engines from indexing anything other than the home page, the Posts (blog posts), and the actual Pages. Since I have released this plugin, I have had both positive and some negative feedback on this plugin. Some people argue that having the category, archive, and paged pages (when you click next on the home page) will actually bring more traffic to a site. I tend to agree more with what Ken said above
“sometimes a search will direct them to the home page but the post they are looking for will no longer be shown there.”
At least in my experience, I have find it to be really annoying when I click a result from a search, only to find that the phrase I was searching for isn’t there anymore, or the group of words is there, but the context makes no sense at all when I actually go to the page.
March 4th, 2007 at 1:59 am
[…] Duplicate Content Cure prevents duplicate content in wordpress blogs by adding a noindex meta tag to wordpress pages that don’t contain any unique value, like categories, archives, and paged pages. […]
March 4th, 2007 at 10:23 am
This is a nice plugin but noindexing the catagory pages is not a good idea. Is there any way to get an option or version that does not noindex the catagory pages. I’m really confused why you would have even tried noindexing the catagory pages. Have you ever looked at your log files? You must not be a very good seo if you are not using your catagory pages to rank for terms. It gives you a chance to try and rank for one specific term. It is not duplacate content. Your catagory pages are your biggest chance or ranking for terms. If you do it right you get lots of posts on one page all with the same theme and the keywords repeated many times.
March 4th, 2007 at 10:35 am
You can change line 24 in the plugin from:
if((is_single() || is_page() || is_home()) && (!is_paged())){
to
if((is_single() || is_category() || is_page() || is_home()) && (!is_paged())){
and that will put your category pages in Google. This mod is very simple and can be modified very easily.
March 4th, 2007 at 11:31 pm
ogletree,
Edit:
The code you posted above will only work for the non paged (or first page) of each category. If you’d like to have all category pages indexed, see the update above.
I may add a simple configuration to the plugin to allow for people who aren’t familiar with PHP to easily change this option.
As for your first comment, I think your argument would make a lot more sense if I each post was only allowed to be placed into one category. I wish that I had organized my categories that way, but I, like many others, place my posts into anywhere from 3 to 10 categories each.
Let’s say I write a post, and select 6 relevant categories to put it in. Now, the most important part of that post (the title), and at least one paragraph are going to be on at least 9 different pages of my blog (the 6 category pages, 2 (maybe more) archives page, and finally the actual post page).
Sure, you may get traffic to those pages, but how similar can all of those posts be? At least in my case, all the posts in a single category are definitely going to be related, but they are all unique articles, and having them all on the same page, completely dilutes each one of them. Another problem with categories is that they are constantly changing, making it highly unlikely that the phrase the visitor searched for will even still be there.
I think with so much emphasis on getting traffic, we sometimes loose sight of the importance of the content, and the quality of the landing page. For me, this is really a quality vs quantity issue.
I don’t see why this would make me a bad SEO anyway. I’m just choosing to focus my efforts on optimizing the parts of wordpress that I have full control over.
March 14th, 2007 at 11:50 am
[…] Rob about his nifty architecture blog search engine, I realized just how important things like the Duplicate Content Cure Plugin are. Not just for fear of being kicked out of google, but because it makes your search results […]
March 15th, 2007 at 10:01 am
[…] Duplicate Content Cure prevents duplicate content in wordpress blogs by adding a noindex meta tag to wordpress pages that don’t contain any unique value, like categories, archives, and paged pages. […]
March 27th, 2007 at 9:44 am
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April 6th, 2007 at 1:23 am
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April 6th, 2007 at 2:01 am
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April 6th, 2007 at 12:46 pm
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April 9th, 2007 at 1:48 am
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April 9th, 2007 at 12:50 pm
Although Google claims that it can identify the duplicated content and rank the ‘most important’ URL. It is always better to make it easy for Google bot. So, putting ‘no-follow’ for duplicated content URL is a solution.
April 21st, 2007 at 5:08 am
This is a great plugin. Several of the WP sites I run have been having problems with Google only indexing the category or archive pages and not the individual article pages.
Ends up with a lot of search result snippets on Google being nothing but a list of post categories, author name, and publication date =P
May 3rd, 2007 at 12:59 am
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May 11th, 2007 at 2:32 am
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May 14th, 2007 at 6:46 am
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May 14th, 2007 at 1:15 pm
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May 15th, 2007 at 9:26 am
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May 16th, 2007 at 12:26 pm
Thanks for this plug-in. Great job.
May 16th, 2007 at 3:06 pm
All my posts are in the supplemental results. How long does it take after installing the plug in before the posts start showing up again in the regular index and not supplemental results area better known as “Google Hell”
May 16th, 2007 at 3:22 pm
Hey Glenn.
Once pages go supplemental, it’s pretty difficult to get them out.
The #1 cause of supplemental results in Google, is a lack of pagerank (lack of links), so if you have a lot of posts in the supplemental results, try getting some links to them.
I know that is easier said than done, but that’s what you need.
May 16th, 2007 at 3:43 pm
I’ve also read at http://www.SearchEngineNews.com a trusted SEO source to not index the Catagory and Monthly archives. Does this plug-in do this too?
They suggest the following command:
May 16th, 2007 at 3:49 pm
Thank’s Badi,
What if I add links to the posts from my main site pages which many pages have PageRank? The blog is in a sub-folder of my main domain URL
After activing your plug-in, if I write new blog posts will those go Supplemental or get indexed in the regular Google index you think?
May 16th, 2007 at 4:09 pm
Yes,
This plugin stops both category and monthly archive pages from getting indexed, as well as paged pages.
Glen, I’d suggest that you try submitting your pages to directories, social bookmarking sites (like netscape, digg, reddit, etc).
Get them out there.
May 16th, 2007 at 4:34 pm
Thanks Badi,
I’ll submitting most of my posts to all the major social bookmarking sites as you suggest. I normally submit them to de.lic.eous once by default.
I also implemented the strategy at this link by adding a Robots.txt file:
http://www.connectedinternet.co.uk/2007/04/12/adding-a-robotstxt-file-has-increased-my-google-traffic-by-16-in-4-days/
What is your opinion on this?
May 16th, 2007 at 4:47 pm
One thing Glen.
Be careful when submitting your pages. Make sure not to abuse them. You should only submit some selected posts.
Also the link you provided looks good. I’d be interested in hearing the results.
May 16th, 2007 at 7:14 pm
Thanks for the tip Badi,
With your plug-in activated do you think future blog posts I make will suffer the same “Google Hell” fate?
May 17th, 2007 at 4:14 pm
Glenn,
One more really important thing that might help you is to make sure you have picked either www or non www as your default domain.
For example. I chose to use the www version, so I redirect all people who come to dnscoop.com to http://www.dnscoop.com
This is what I use in my .htaccess
RewriteCond %{HTTP_HOST} ^dnscoop.com [NC]
RewriteRule ^(.*)$ http://www.dnscoop.com/1 [L,R=301]
This helps search engines to focus all attention on one.
May 18th, 2007 at 8:20 am
Again, the question…
With this plug-in activated will future blog posts I make will suffer the same “Google Hell†fate?
Anyone have any opinions?
Thanks in Advance!
Glenn
May 19th, 2007 at 12:09 am
One problem — though an easily-solved one — with this plugin: the code it generates is not valid XHTML. The solution is simple: just add a trailing forward-slash to the end of the meta-tags, right before the right angle bracket, like this:
Actually, a second problem: The URL in the plugin itself doesn’t point to this page, so anyone looking for updates by following this link is going to just see your home page — and maybe assume the plugin page (like so many others out there) is gone.
May 19th, 2007 at 12:10 am
Erg… it ate my code sample. Like this:
<meta name=\"robots\" content=\"index,follow\" />
May 19th, 2007 at 3:57 pm
Thanks very much Kelson. I have updated the plugin.
May 23rd, 2007 at 2:51 am
Thanks for the very useful tool! It seems it has some issues working together with wp_cache… So, to run dc cure i had to deactivate wp_cache
May 25th, 2007 at 9:21 am
[…] is a much easier/faster way! There is a new plugin out there called the Duplicate Content Cure for Wordpress. It simply automates adding this line to pages which have duplicate content on […]
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May 25th, 2007 at 4:27 pm
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May 26th, 2007 at 7:33 am
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May 27th, 2007 at 5:39 am
This sounds dumb to me. Not having duplicate content is a theme matter. Having more pages (category archives etc…) is good for SEO. Preventing SE from indexing them is totally stupid imho.
May 27th, 2007 at 10:24 am
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May 27th, 2007 at 1:41 pm
@Ozh
Try to look more at the big picture.
Traffic isn’t everything. In fact, it can be quite useless when the landing pages don’t contain exactly what the visitor was looking for. In most cases, the user will just hit the back button and never look back. I know that’s what I do.
Relying on getting random traffic from a bunch of random keywords on a page may be good SEO for a MFA (made for adsense) site where the goal is to make people leave your site (via ads), but it isn’t a good SEO strategy for a serious blog. Of course this is also just my opinion.
May 28th, 2007 at 8:20 am
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May 28th, 2007 at 3:06 pm
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May 30th, 2007 at 2:58 pm
I’ve been reading a lot about SEO these past few weeks, and there seems to be a lot of contradiction regarding plugins and follows.
Ultimately we all know that it comes down to content, first and foremost, but I hope to discover a few ways to help out, without the risk of Google searches bringing up 404 pages.
June 3rd, 2007 at 12:57 am
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June 3rd, 2007 at 6:57 pm
Hi, the plugin is great. I hope Google will index my pages better now.
Thanks!
June 6th, 2007 at 9:26 am
[…] issue. For more details and explanation, please read his article. I also installed a plugin called Wordpress Duplicate Content Cure. It adds the noindex, follow meta tag on the problem pages like this <meta […]
June 10th, 2007 at 5:06 pm
[…] entry that won the contest, was several things, first the plugin by Badi Jones of SEOLogs, the Wordpress Duplicate Content Cure. This makes all other views like the archive and category views have the meta tag noindex so that […]
June 10th, 2007 at 7:47 pm
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June 11th, 2007 at 12:54 am
[…] started to fix this - the category/archive pages now contain the noindex tag thanks to the Duplicate Content Cure plugin for WordPress. I finally got around to checking my own status using the SEO for FireFox […]
June 11th, 2007 at 2:31 am
[…] started to fix this - the category/archive pages now contain the noindex tag thanks to the Duplicate Content Cure plugin for WordPress. I finally got around to checking my own status using the SEO for FireFox […]
June 14th, 2007 at 2:44 am
Thanks a bunch, easy to implement, works like a charm with Wordpres 2.2 and does the trick efficiently.
Tom
June 15th, 2007 at 3:54 am
[…] WordPress Duplicate Content Cure - We’ve been reading a lot recently about duplicate content having a negative effect upon […]
June 16th, 2007 at 8:19 am
[…] Use the Wordpress Duplicate Content Cure Plugin : Duplicate content cure plugin automatically adds noindex, nofollow meta tags in the header of all […]
June 17th, 2007 at 1:47 pm
Thanks Jones. I’ve installed the plugin, but how do I check if it is doing it’s thing?
June 17th, 2007 at 4:01 pm
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June 18th, 2007 at 3:38 pm
[…] seen recently a lot of plugins for WordPress aimed at taking care of the duplicate content issue in search engines. […]
June 19th, 2007 at 4:51 am
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June 20th, 2007 at 1:40 pm
30 Tage ohne Google?…
Gerade aus dem Spamfilter gefischt:
Subject: Entfernung Ihrer Webseite http://www.discobeats.de aus dem Google Index
Sehr geehrter Seiteninhaber oder Webmaster der Domain http://www.discobeats.de,
bei der Indexierung Ihrer Webseiten mussten wir feststellen, dass a…
June 21st, 2007 at 8:49 pm
[…] blogs, and to see an example, visit Not So Boring Life. Another option for WordPress users is the Duplicate Content Cure plugin. You can also control how much content appears on your categories pages by choosing to have those […]
June 23rd, 2007 at 10:49 pm
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June 26th, 2007 at 2:38 pm
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June 26th, 2007 at 11:27 pm
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June 27th, 2007 at 12:57 am
[…] 8. Duplicate Content Cure - If you are using the default settings for WordPress, a single post on your blog can be indexed numerous times through archives, categories, built in search, and home page paging. Mostly it’s summaries or posts or exact copies of the same post. This plugin will ensure that the pages and posts are the only things that get indexed. Download Duplicate Content Cure […]
June 28th, 2007 at 3:42 pm
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June 30th, 2007 at 11:37 am
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June 30th, 2007 at 12:01 pm
Thanks for this useful info. I realized my blog has a lot of pages indexed in supplemental index when i start using Firefox SEO plugin from Aron. I hope this plugin can help me get rid of it.
June 30th, 2007 at 6:05 pm
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July 2nd, 2007 at 12:00 am
[…] plugin Wordpress Duplicate Content Cure realiza el primer trabajo estupendamente [información sobre este plugin]. Respecto al segundo tenemos algunos tips en los siguientes […]
July 2nd, 2007 at 5:10 pm
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July 6th, 2007 at 3:39 am
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July 7th, 2007 at 8:31 am
[…] choice is the Duplicate Content plugin. Â The downside that I see to this plugin is that it prevents search engines from indexing category […]
July 9th, 2007 at 5:22 am
Been trying hard now for 2 months to fix this suplpemental headache. I’ll try this fix to see if it helps.
July 11th, 2007 at 11:01 pm
[…] confusing search terms leading people to Jatecblog, which was not what was wanted. Thanks to the Duplicate Content Cure plug-in, I no longer have to worry about this. It will not allow search engines to index category […]
July 14th, 2007 at 5:46 am
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July 20th, 2007 at 9:37 pm
[…] Duplicate Content Cure, by Badi Jones. One of the problems with WordPress is that the same post or page can get several URIs, leading to duplicate content, which is “a bad thing” as far as search engines are concerned. This plug-in enables me to exclude the Categories/Archives by placing a meta tag <meta name=”robots” content=”noindex,follow”> automatically. (I no longer use it as the All-in-One SEO Pack above does this as well) […]
July 26th, 2007 at 9:16 pm
[…] The Duplicate Content Cure plugin is another option for WordPress users. This plugin tells the search engines to ignore the pages […]