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.
Rel canonical between mirrored domains
-
Hi all & happy new near!
I'm new to SEO and could do with a spot of advice:
I have a site that has several domains that mirror it (not good, I know...) So www.site.com, www.site.edu.sg, www.othersite.com all serve up the same content. I was planning to use rel="canonical" to avoid the duplication but I have a concern:
Currently several of these mirrors rank - one, the .com ranks #1 on local google search for some useful keywords. the .edu.sg also shows up as #9 for a dirrerent page. In some cases I have multiple mirrors showing up on a specific serp.
I would LIKE to rel canonical everything to the local edu.sg domain since this is most representative of the fact that the site is for a school in Singapore but...
-The .com is listed in DMOZ (this used to be important) and none of the volunteers there ever respoded to requests to update it to the .edu.sg
-The .com ranks higher than the com.sg page for non-local search so I am guessing google has some kind of algorithm to mark down obviosly local domains in other geographic locationsAny opinions on this? Should I rel canonical the .com to the .edu.sg or vice versa?
I appreciate any advice or opinion before I pull the trigger and end up shooting myself in the foot!
Best regards from Singapore!
-
Wow - that's a huge impact. It's hard for me to believe this one change would have such an impact, but hopefully these new numbers stick.
-
Hi Dr. Peter,
Just thought I would share the initial results of your suggestion because they appear to be so dramatic!
I put it a rel=alternate tag on every page indicating the .edu.sg version of the URL for "en-sg" and the com version of the url for "en".
From MozAnalytics: Before
Rank 1-3: 4 keywords
Rank 4-10: 21 keywords
Rank 11-20: 3 keywords
Rank 21-50: 2 keywords
Rank 51+: 216 keywordsFrom MozAnalytics: After
Rank 1-3: 50 keywords!!!
Rank 4-10: 19 keywords
Rank 11-20: 3 keywords
Rank 21-50: 13 keywords
Rank 51+: 167 keywordsThat's pretty crazy in under a week - Not sure if its 'real' since I never personally went to check rankings on these keywords, but wow! If the MozAnalytics information is correct I am blown away! Unfortunately its for a niche site in a tiny market so its not going to lead to fame and riches, but its still an amazing result!
Thanks so much for the great advice
Alex
-
Happy to help - hope it does the trick.
-
Fantastic response Dr. Peter! Thanks for taking the time to explain and to suggest the rel="alternate" tag which I have now implemented in a little experiment.
I very much enjoy your posts on the moz blog and thank you for all the indirect help they have given us in the past.
Best regards,
Alex
-
I'm not sure there's a one-sized-fits-all answer. If the .com is more geared to an audience outside of Singapore, and the .edu.sg site is more geared to the local audience you could set a region and/or language with rel="alternate" hreflang:
https://support.google.com/webmasters/answer/189077?hl=en
This is a bit more subtle canonicalization signal that Google can use to sort out sites with language and/or regional copies (the regional aspect may be relevant even if both sites are in english).
The next question would be: where does your traffic come from? If you want to consolidate, but most of your traffic is coming from outside of Singapore, then I'd probably stick with the .com - it still has a "generic" status. The .edu.sg may rank more strongly in Singapore but fall off everywhere else.
I wouldn't worry much about the DMOZ link, especially if you have a solid link profile. DMOZ links have gotten buried over the years and typically don't carry nearly the value most people think. At some point, they could be a solid boost to a new site with a small link profile, but I think even those days are well behind us.
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
-
Rel=Canonical For Landing Pages
We have PPC landing pages that are also ranking in organic search. We've decided to create new landing pages that have been improved to rank better in natural search. The PPC team however wants to use their original landing pages so we are unable to 301 these pages to the new pages being created. We need to block the old PPC pages from search. Any idea if we can use rel=canonical? The difference between old PPC page and new landing page is much more content to support keyword targeting and provide value to users. Google says it's OK to use rel=canonical if pages are similar but not sure if this applies to us. The old PPC pages have 1 paragraph of content followed by featured products for sale. The new pages have 4-5 paragraphs of content and many more products for sale. The other option would be to add meta noindex to the old PPC landing pages. Curious as to what you guys think. Thanks.
Technical SEO | | SoulSurfer80 -
English and French under the same domain
A friend of mine runs a B&B and asked me to check his freshly built website to see if it was <acronym title="Search Engine Optimization">SEO</acronym> compliant.
Technical SEO | | coolhandluc
The B&B is based in France and he's targeting a UK and French audience. To do so, he built content in english and french under the same domain:
https://www.la-besace.fr/ When I run a crawl through screamingfrog only the French content based URLs seem to come up and I am not sure why. Can anyone enlighten me please? To maximise his business local visibility my recommendation would be to build two different websites (1 FR and 1 .co.uk) , build content in the respective language version sites and do all the link building work in respective country sites. Do you think this is the best approach or should he stick with his current solution? Many thanks1 -
Transfer a Main Domain to a Sub-Domain
My IT department tells me they want to transfer my main site domain, which has been in existence since 1999 as an e-commerce site (maindomain.com) to a sub-domain (www2.maindomain.com) or a completely new domain (newdomain.net). This is because we are launching a new website and B2C e-commerce engine, but we still have to maintain the legacy B2B e-commerce engine which contains hard-coded URLs, and both systems can't use the same domain. I've been researching the issue across SEOmoz, but I haven't come across this exact type of scenario (mostly I've seen a sub-domain to new domain). I see major problems with their proposal, including negative SEO impact, loss of domain authority/ranking and issues with branding. Does anyone know the exact type of impact I can expect to see in this scenario and specific steps I should go about to minimize the impact? Btw, I will be using Danny Dover's guide on properly moving domains where appropriate. Thanks!
Technical SEO | | AscendLearning0 -
Umlaut in domain
Hi, My client wants to expand it's business to Germany and logically we need a domain name to match. We've found a great one and regsiterd several variants to it. However I just found out that in Germany it is possible (while here it's not) to register a domain with an umlaut. My question is: will google assign more value to: schädlinge.de than schadlinge.de when users search for schädlinge? If yes, how large will the difference be? (I will use an umlaut in the title etc) Kind regards,
Technical SEO | | media-surfer
Jason.0 -
Internal search : rel=canonical vs noindex vs robots.txt
Hi everyone, I have a website with a lot of internal search results pages indexed. I'm not asking if they should be indexed or not, I know they should not according to Google's guidelines. And they make a bunch of duplicated pages so I want to solve this problem. The thing is, if I noindex them, the site is gonna lose a non-negligible chunk of traffic : nearly 13% according to google analytics !!! I thought of blocking them in robots.txt. This solution would not keep them out of the index. But the pages appearing in GG SERPS would then look empty (no title, no description), thus their CTR would plummet and I would lose a bit of traffic too... The last idea I had was to use a rel=canonical tag pointing to the original search page (that is empty, without results), but it would probably have the same effect as noindexing them, wouldn't it ? (never tried so I'm not sure of this) Of course I did some research on the subject, but each of my finding recommanded one of the 3 methods only ! One even recommanded noindex+robots.txt block which is stupid because the noindex would then be useless... Is there somebody who can tell me which option is the best to keep this traffic ? Thanks a million
Technical SEO | | JohannCR0 -
Checkout on different domain
Is it a bad SEO move to have a your checkout process on a separate domain instead of the main domain for a ecommerce site. There is no real content on the checkout pages and they are completely new pages that are not indexed in the search engines. Do to the backend architecture it is impossibe for us to have them on the same domain. An example is this page: http://www.printingforless.com/2/Brochure-Printing.html One option we've discussed to not pass page rank on to the checkout domain by iFraming all of the links to the checkout domain. We could also move the checkout process to a subdomain instead of a new domain. Please ignore the concerns with visitors security and conversion rate. Thanks!
Technical SEO | | PrintingForLess.com0 -
How to structure rel=canonical for a e commerce site
Hello, So I have searched the Q & A , Google, the zen cart forum and at this point I am looking for some one to give a concrete answer on what I should do. There is a lot of different opinions on " rel=canonical" and how to apply it , since there are many other variable in place. I have a zen cart site. I am using the latest 1.3.9 version. The default setting ( seem to me) uses the rel=canonical to point back to the specific link product or category respectively. Most of the time I have two scenarios. 1. Main category ---> Sub category----> Product 2. Main Category----> Product I'll give an example http://www.perfectindesign.com/awards ---main category http://www.perfectindesign.com/awards/acrylic-awards sub category http://www.perfectindesign.com/awards/acrylic-awards/slanted-award product (this example has three sub categories with maybe 12 products in one 4 in the second and 5 in the third) From looking at the source code for each url it the rel=canonical just points back to its own url. I want to avoid competing against my self, for the example above keyword "acrylic awards" so should the use of the re=canonical be changes site wide to have products point back to sub categories when they exist and have products point back to main categories when no sub categories exist? I am very new to seo, specifically eCommerce seo. If you have experience and have done this to a site you manage for a client or your own please advise how to proceed. Also if I'm missing some thing that will give me a better understanding of the bigger seo picture that would be great. Thanks, Yevgeny
Technical SEO | | Yevgeny0 -
Any way around buying hosting for an old domain to 301 redirect to a new domain?
Howdy. I have just read this QA thread, so I think I have my answer. But I'm going to ask anyway! Basically DomainA.com is being retired, and DomainB.com is going to be launched. We're going to have to redirect numerous URLs from DomainA.com to DomainB.com. I think the way to go about this is to continue paying for hosting for DomainA.com, serving a .htaccess from that hosting account, and then hosting DomainB.com separately. Anybody know of a way to avoid paying for hosting a .htaccess file on DomainA.com? Thanks!
Technical SEO | | SamTurri0