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
-
Spammers created bad links to old hacked domain, now redirected to our new domain. Advice?
My client had an old site hacked (let's call it "myolddomain.com") and the hackers created many links in other hacked sites with links such as http://myolddomain.com/styless.asp?jordan-12-taxi-kids-cheap-T8927.html The old myolddomain.com site was redirected to a different new site since then, but we still see over a thousand spam links showing up in the new site's Search Console 404 crawl errors report. Also, using the links: operator in google search, we see many results of spam links. Should we be worried about these bad links pointing to our old site and redirecting to 404s on the new site? What is the best recommendation to clean them up? Ignore? 410s? Other? I'm seeing conflicting advice out there. The old site is hosted by the client's previous web developer who doesn't want to clean anything up on their end without an ongoing hosting contract. So beyond turning redirects on or off, the client doesn't want to pay for any additional hosting. So we don't have much control over anything related to "myolddomain.com". 😞 Thanks in advance for any assistance!
Technical SEO | | usDragons0 -
Domain name SEO
I would like to hear your opinion about which between robotics.kawasaki.com and www.kawasakirobotics.com is more effective for SEO of keyword robotics and kawasaki. We have been using kawasaki.com domain name for more than 15 years.
Technical SEO | | Iwashima0 -
Domain Registrar
Looking for opinions on some good domain registrars since I have decided to transfer from Godaddy. A question while I'm here discussing the topic. Does the reputation of a Domain Registrar affect SEO in any form?
Technical SEO | | greenfoxone0 -
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 -
Selling Domain,,,,, OOOOPPPPPPsssss!
Hey Everyone, I think I may have screwed up big time. I have an old 4 letter domain that I've been sitting on for many years. I had no idea what it was worth and ended up putting it up on ebay. I have since been told that it's quite valuable. I just tried to end the auction and ebay won't let me end it. My thinking is that someone here may want to take advantage of my mistake. Even better, let me know if there are any tricks to ending the auction. The domain is http://proa.com If for some reason it doesn't sell, where is a good place to sell it at a fair price? Have a good one. David
Technical SEO | | dmac0 -
Regarding Canonical Url
We have a e-commerce website. Our own homegrown:-) We recently visited Google Webmaster tools and could see that Google mention we have double Meta tags for some main and subcategories. Each Product Category on our site have a subcategory/ Sub url - "Bestseller", "On Sale", "just arrived". The sub url is not a really a real category and we can therefore not make totally unique description and title for does urls. domain.com/category domain.com/category/bestseller
Technical SEO | | areygie
domain.com/category/on-sale
domain.com/category/just-arrived We are thinking about 2 solutions. 1. Canonical Url on subcategory pointing to main category.
2. Or add a word bestseller, on sale or just arrived in front of the meta title/description. We can do this from code. I personally opt for option 1. But I am little unsure what is the best way to go. Thanks in advance for your advice0 -
Rel Canonical Question
I changed /tulsa-cleaning-services/ to /services/ because the URLs were getting too long. Now I'm getting an error for Appropriate use of Rel Canonical. I used a 301 to send old links to the new location. Any ideas? Thanks! Will www.americancarpetclean.com
Technical SEO | | WillWatrous0 -
What is SEO impact of redirecting from domain to https appspot domain ?
Our site is hosted on google and is fully https. But since google's limitation is that all https needs to be on the appspot domain, we are redirecting users from our website to the appspot domain. What is the impact of this on SEO?
Technical SEO | | incandescent0