Confused about rel="canonical"
-
I'm receiving a duplicate content error in my reports for www.example.com and www.example.com/index.htm. Should I put the rel="canonical" on the index page and point it to www.example.com? And if I have other important pages where rel="canonical" is being suggested do I place the rel="canonical" on that page? For example if www.example/product is an important page would I place on that page?
-
I haven't considered this option, thanks for the tip.
-
I've read that a 301 redirect hurts your page rank. Is that true? Thanks for pointing me to that page. I've seen and read that page a long time ago and at the time it was like a foreign language. Now it makes more sense.
-
I dunno that Google gives you a good example of why you would use it, just where. Canonical, for all intents ard purposes, lets you pick which of your duplicates gets indexed.
Here's a real world example. Newegg.com has, literally, tens of thousands of products. Their site is in site.com/?id=STRING but they do a lot of URL based tracking. As such, you have a lot of site.com/?id=STRING&ref=1234 Now, Google will see all of those extra query string pages as unique pages with duplicate content. Newegg uses canonical to ensure that Google ignores all but the core product page.
So, why use a 301 and why use canonical? A 301 removes the page from the index. Canonical leaves the page indexed but transfers PR to the "real" page and helps avoid duplicate content.
-
To expand on what Petra said, have you considered using your .htaccess file to permanently redirect all version of your home page to www.example.com (and other pages as well)? This can be done in conjunction with rel="canonical".
SEOmoz offers a Redirection Best Practices doc that can help you out.
-
To your first question:
www.example.com/index.html --> use a 301 redirect to www.example.comRegarding rel canonical --> there the usage is explained pretty well:
http://googlewebmastercentral.blogspot.com/2009/02/specify-your-canonical.htmlYou add the tag to specify your preferred version inside the section of the duplicate content URLs.
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
Browse Questions
Explore more categories
-
Moz Tools
Chat with the community about the Moz tools.
-
SEO Tactics
Discuss the SEO process with fellow marketers
-
Community
Discuss industry events, jobs, and news!
-
Digital Marketing
Chat about tactics outside of SEO
-
Research & Trends
Dive into research and trends in the search industry.
-
Support
Connect on product support and feature requests.
Related Questions
-
Does "google selected canonical" pass link juice the same as "user selected canonical"?
We are in a bit of a tricky situation since a key top-level page with lots of external links has been selected as a duplicate by Google. We do not have any canonical tag in place. Now this is fine if Google passes the link juice towards the page they have selected as canonical (an identical top-level page)- does anyone know the answer to this question? Due to various reasons, we can't put a canonical tag ourselves at this moment in time. So my question is, does a Google selected canonical work the same way and pass link juice as a user selected canonical? Thanks!
Technical SEO | | Lewald10 -
Does "google selected canonical" pass link juice the same as "user selected canonical"?
We are in a bit of a tricky situation since a key top-level page with lots of external links has been selected as a duplicate by Google. We do not have any canonical tag in place. Now this is fine if Google passes the link juice towards the page they have selected as canonical (an identical top-level page)- does anyone know the answer to this question? Due to various reasons, we can't put a canonical tag ourselves at this moment in time. So my question is, does a Google selected canonical work the same way and pass link juice as a user selected canonical? Thanks!
Technical SEO | | Lewald10 -
"Url blocked by robots.txt." on my Video Sitemap
I'm getting a warning about "Url blocked by robots.txt." on my video sitemap - but just for youtube videos? Has anyone else encountered this issue, and how did you fix it if so?! Thanks, J
Technical SEO | | Critical_Mass0 -
404 or rel="canonical" for empty search results?
We have search on our site, using the URL, so we might have: example.com/location-1/service-1, or example.com/location-2/service-2. Since we're a directory we want these pages to rank. Sometimes, there are no search results for a particular location/service combo, and when that happens we show an advanced search form that lets the user choose another location, or expand the search area, or otherwise help themselves. However, that search form still appears at the URL example.com/location/service - so there are several location/service combos on our website that show that particular form, leading to duplicate content issues. We may have search results to display on these pages in the future, so we want to keep them around, and would like Google to look at them and even index them if that happens, so what's the best option here? Should we rel="canonical" the page to the example.com/search (where the search form usually resides)? Should we serve the search form page with an HTTP 404 header? Something else? I look forward to the discussion.
Technical SEO | | 4RS_John1 -
Our rankings for "Tree Service" dropped last month
Hi, we've had a page www.savatree.com/tree-service.html which was ranking top 1-12 on the google rankings but has complete dropped out. We don't have any duplicate errors from that page on here. Do you have any suggestions? We do rank highly on Bing and Yahoo (1-2 pages). We can't figure whats going on.
Technical SEO | | SavATree0 -
"HTTP error: 404 not found" submitting YOAST SITEMAP
When I upload the YOAST site map to google webmaster i get "HTTP error: 404 not found" just for the portfolio tag and categories..For other things iI dont get any i kinf of errors Is it because i dont have any tags and categories of portfolio element? I have to say in my template I have the portfolio post option but im not using it. Tx
Technical SEO | | tourtravel0 -
How can I Style Long "List Posts" in Wordpress?
Hi All, I have been working on a list-post which spans over 100 items. Each item on the list has a quick blurb to explain it, an image and a few resource links. I am trying to find an attractive way to present this long list post in Wordpress. I have seen several sites with long list posts however; they place their items one on top of the other which yields a VERY long page and the end user has to do a lot of scrolling. Others turn their lists into slideshows, but I have no data on how slides perform against 10-mile-long-lists which load in 1 page. I would like to do something similar to what List25.com does as they present about 5-10 items per page and they seem to have pagination. The pagination part I understand however; is there a shortcode plugin to format lists in an attractive way just like list25?
Technical SEO | | IvanC0 -
Cn I use SEOMOZ to find "Bad Links"
We were hit by the Penguin update and I am told it make be because of "Bad Links", but no one can seem to tell me how to find them. We never buy links, and in fact the only links I know about are those from paid affiliates through shareasale - and these affiliates are paid based on performance, not links. 1. Does anyone know how to figure out what links are bad? 2. Once I know, how do I get them to stop linking to my site? Thanks!
Technical SEO | | trophycentraltrophiesandawards0