Moz Q&A is closed.
After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.
301 redirect: canonical or non canonical?
-
Hi,
Newbie alert!
I need to set up 301 redirects for changed URLs on a database driven site that is to be redeveloped shortly.
The current site uses canonical header tags. The new site will also use canonical tags.
Should the 301 redirects map the canonical URL on the old site to the corresponding canonical for the new design . . . or should they map the non canonical database URLs old and new?
Given that the purpose of canonicals is to indicate our preferred URL, then my guess is that's what I should use. However, how can I be sure that Google (for example) has indexed the canonical in every case?
Thx in anticipation.
-
The most accurate way is to do it manually. Doing a site:YOURDOMAIN.com in Google will alert you to most of the ugly URLs you want to get rid of.
-
Thanks for that David . . . makes sense.
Can you recommend any tools to help with this job or is it still mostly a manual process?
Cheers.
-
"Should the 301 redirects map the canonical URL on the old site to the corresponding canonical for the new design . . . or should they map the non canonical database URLs old and new?"
Any URL's that are indexed should be redirected to the correct version. For example if you have both a database URL and a canonical URL both indexed in search results, then they both should be sent to the correct version.
Also, having only canonical URLs in your submitted sitemaps will help to remove a lot of these, even without redirects.
-
Ok, here is my understanding regarding canonicals and how it works with redirect. 301 redirect means the old URL is shifting its all value and user to the new domain (unlike 302 that only derives traffic but contain the URL value to itself only).
Whereas Canonicals indicates Google the preferred version of the domain so theoretically if you use the canonicals on every page Google should pick the redirected page as 301 will take Google to the final destination anyways…
What will I do?
If Possible, I will map all the redirected URLs and remove canonicals from there just to be on the safe side but I don’t think having there will be much of a difference as Google as at least that smart.
Hope this helps!
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
-
Delete old blog posts after 301 redirects to new pages?
Hi Moz Community, I've recently created several new pages on my site using much of the same copy from blog posts on the same topics (we did this for design flexibility and a few other reasons). The blogs and pages aren't exactly identical, as the new pages have much more content, but I don't think there's a point to having both and I don't want to have duplicate content, so we've used 301 redirects from the old blog posts to the new pages of the same topic. My question is: can I go ahead and delete the old blog posts? (Or would there be any reasons I shouldn't delete them?) I'm guessing with the 301 redirects, all will be well in the world and I can just delete the old posts, but I wanted to triple check to make sure. Thanks so much for your feedback, I really appreciate it!
Technical SEO | | TaraLP1 -
Robots txt. in page with 301 redirect
We currently have a a series of help pages that we would like to disallow from our robots txt. The thing is that these help pages are located in our old website, which now has a 301 redirect to current site. Which is the proper way to go around? 1- Add the pages we want to disallow to the robots.txt of the new website? 2- Break the redirect momentarily and add the pages to the robots.txt of the old one? Thanks
Technical SEO | | Kilgray0 -
Product Variations (rel=canonical or 301) & Duplicate Product Descriptions
Hi All, Hoping for a bit of advice here please, I’ve been tasked with building an e-commerce store and all is going well so far. We decided to use Wordpress with Woocommerce as our shop plugin. I’ve been testing the CSV import option for uploading all our products and I’m a little concerned on two fronts: - Product Variations Duplicate content within the product descriptions **Product Variations: - ** We are selling furniture that has multiple variations (see list below) and as a result it creates c.50 product variations all with their own URL’s. Facing = Left, Right Leg style = Round, Straight, Queen Ann Leg colour = Black, White, Brown, Wood Matching cushion = Yes, No So my question is should I 301 re-direct the variation URL’s to the main product URL as from a user perspective they aren't used (we don't have images for each variation that would trigger the URL change, simply drop down options for the user to select the variation options) or should I add the rel canonical tag to each variation pointing back to the main product URL. **Duplicate Content: - ** We will be selling similar products e.g. A chair which comes in different fabrics and finishes, but is basically the same product. Most, if not all of the ‘long’ product descriptions are identical with only the ‘short’ product descriptions being unique. The ‘long’ product descriptions contain all the manufacturing information, leg option/colour information, graphics, dimensions, weight etc etc. I’m concerned that by having 300+ products all with identical ‘long’ descriptions its going to be seen negatively by google and effect the sites SEO. My question is will this be viewed as duplicate content? If so, are there any best practices I should be following for handling this, other than writing completely unique descriptions for each product, which would be extremely difficult given its basically the same products re-hashed. Many thanks in advance for any advice.
Technical SEO | | Jon-S0 -
CNAME vs 301 redirect
Hi all, Recently I created a website for a new client and my next job is trying to get them higher in Google. I added them in OSE and noticed some strange backlinks. To my surprise the client has about 20 domain names. All automatically poiting to (showing) the same new mainsite now. www.maindomain.nl www.maindomain.be
Technical SEO | | Houdoe
www.maindomain.eu
www.maindomain.com
www.otherdomain.nl
www.otherdomain.com
... Some of these domains have backlinks too (but not so much). I suggested to 301 redirect them all to the main site. Just to avoid duplicate content. But now the webhoster comes into play: "It's a problem, client has only 1 hosting account, blablabla...". They told me they could CNAME the 20 domains to the main domain. Or A-record them to an IP address. This is too technical stuff for me. So my concrete questions are: Is it smart to do anything at all or am I just harming my client? The main site is ranking pretty well now. And some backlinks are from their copy sites (probably because everywhere the logo links to the full mainsite url). Does the CNAME or A-record solution has the same effect as a 301 redirect, from SEO perspective? Many thanks,
Hans0 -
301 Redirect with index.asp
I am very new to all of this so forgive the newbie questions I will get better. Ok so after starting a campaign I see that I have many issues including where some pages are being deemed as duplicate content. 1. The report says the http://lucid8.com has duplicate content on 2 other pages 2. When I look at them it shows that http://lucid8.com/index.asp and http://www.lucid8.com are duplicates. 3. Really these are the exactly the same page because the default page that is opened for www.lucid8.com http://www.lucid8.com etc always opens the index.asp page. 4. Now I read that I should do permanent redirects and how to do this via IIS and I tried to do a redirect from index.asp to www.lucid8.com but that does not work because www.lucid8.com is pointing to index.asp and so we end up in a circle. So the question is how do I get rid of these duplicate page references without causing problems. Thanks
Technical SEO | | TroyW0 -
Simple 301 redirect a subfolder to another subfolder
Hi, I have a number of sub-folders that I have to move, each of which contains a number of files. subfolder A has files a, b & c subfolder B has files d, e & f
Technical SEO | | aactive
subfolder C has files g, h & i A, B & C folders need to be X, Y & Z Will the following work? RewriteRule ^subfolder-A/* http://www.domain.com/subfolder-X/ [R=301,L]
RewriteRule ^subfolder-B/* http://www.domain.com/subfolder-Y/ [R=301,L]
RewriteRule ^subfolder-C/* http://www.domain.com/subfolder-Z/ [R=301,L] will this result in visitors to http://www.domain.com/subfolder-B/f.html being redirected to http://www.domain.com/subfolder-Y/f.html? All on the same domain. in reality we are talking hundreds of sub folders and thousands of files so we don't want to have to reference every file individually in the htaccess. Thanks0 -
200 Redirects for SEO instead of 301
We are working with a company on re-platforming our website. On a call yesterday they outlined a strategy to use 200 redirects for our top keywords instead of 301s. I am not familiar with this type of redirect and was wondering if anyone could provide some more insight.
Technical SEO | | EvergladesDirect0 -
301 Redirect "wildcard" question
I have been looking at the SEOmoz redirect guide for some advice but I can't seem to find the answer : http://www.seomoz.org/learn-seo/redirection I have lots of URLs from a previous version of a site that look like the following: sitename.com/-c-25.html?sort=2d&page=1 sitename.com/-c-25.html?sort=3a&page=1 etc etc. I want to write a redirect so whenever a URL with the terms "-c-25.html" is requested it redirects to a specified page, regardless of what comes after the question mark. These URLs were created by our previous ecommerce software. The 'c' is for category, and each page of the cateogry created a different URL. I want to do these so I can rediect all of these URLs to the appropraite new cateogry page in a single redirect. Thanks for any help.
Technical SEO | | craigycraig0