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
-
Reusing an already 301 redirected URL for a very important keyword
I have a question about reusing an already 301 redirected URL Till now I never reused an URLs that has been already redirected with a 301 redirect. However, I just started working on a website where in past they created a lot of 301 redirects without thinking about the future, and now certain URLs, that are currently redirected with a 301, would be very useful (exact match) and needed (for some of the most important keywords for this specific business), to maintain an optimal, homogeneous and "beautiful" URL structure. Has any of you ever reused a URL that was previously redirected with a 301 redirect? If yes what are your experiences with it? Can content on the reused URL (that was previously 301 redirected and than the redirect removed) normally rank if the page is reestablished and the redirect is removed (and you do great content, on page, internal linking, backlinking, .... ) or is such an URL risky / not recommended / "burned" forever and not recommended to be reused again... especially for very important keywords since it present the exact match ?! Thank you very much for all your help! Regards
Technical SEO | | moz46y0 -
Google is still indexing the old domain a year after 301 redirects are put in place
Hi there, You might have experienced this before but for me this is the first. A client of mine moved from domain A (www.domainA.com) to domain B (www.domainB.com). 301 redirects are all in place for over a year. But the old domain is still showing in Google when you search for "site:domainA.com" The HTTP Header check shows this result for the URL https://www.domainA.com/company/cookie-policy.aspx HTTP/1.1 301 Moved Permanently =>
Technical SEO | | iQi
Cache-Control => private
Content-Length => 174
Content-Type => text/html; charset=utf-8
Location => https://www.domain_B_.com/legal/cookie-policy
Server => Microsoft-IIS/10.0
X-AspNetMvc-Version => 5.2
X-AspNet-Version => 4.0.30319
X-Powered-By => ASP.NET
Date => Fri, 15 Mar 2019 12:01:33 GMT
Connection => close Does the redirect look wrong? The change of address request was made on Google Console when the website was moved over a year ago. Edit: Checked the domainA.com on bing and it seems that its not indexed, and replaced with domainB.com, which is the right. Just Google is indexing the old domain! Please let me know your thoughts on why this is happening. Best,0 -
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 -
Rel=Canonical on a page with 302 redirection existing
Hi SEOMoz! Can I have the rel=canonical tag on a URL page that has a 302 redirection? Does this harm the search engine friendliness of a content page / website? Thanks! Steve
Technical SEO | | sjcbayona-412180 -
What should be use 301 or 302 redirection for 404 pages
Please suggest which redirection we should use for 404 pages- 301 or 302. If you can elaborate it with reason then it will be highly appreciated.
Technical SEO | | koamit0 -
Is it worth setting up 301 redirects from old products to new products?
This year we are using a new supplier and they have provided us a product database of approx. 5k products. About 80% of these products were in our existing database but once we have installed the new database all the URLs will have changed. There is no quick way to match the old products with the new products so we would have to manually match all 5k products if we were were to setup 301 rules for the old products pointing to the new products. Of course this would take a lot of time. So the options are: 1. Is it worth putting in this effort to make the 301 rules? 2. Or are we okay just to delete the old product pages, let the SE see the 404 and just wait for it to index the new pages? 3. Or, as a compromise, should we 301 the old product page to the new category page as this is a lot quicker for us do do than redirecting to the new product page?
Technical SEO | | indigoclothing0 -
How to safely reduce the number of 301 redirects / should we be adding so many?
Hi All, We lost a lot of good rankings over the weekend with no obvious cause. Our top keyword went from p3 to p12, for example. Site speed is pretty bad (slower than 92% of sites!) but it has always been pretty bad. I'm on to the dev team to try and crunch this (beyond image optimisation) but I know that something I can effect is the number of 301 redirects we have in place. We have hundreds of 301s because we've been, perhaps incorrectly, adding one every time we find a new crawl error in GWT and it isn't because of a broken link on our site or on an external site where we can't track down the webmaster to fix the link. Is this bad practice, and should we just ignore 404s caused by external broken URLs? If we wanted to reduce these numbers, should we think about removing ones that are only in place due to external broken URLs? Any other tips for safely reducing the number of 301s? Thanks, all! Chris
Technical SEO | | BaseKit0