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.
The Great Subdomain vs. Subfolder Debate, what is the best answer?
-
Recently one of my clients was hesitant to move their new store locator pages to a subdomain. They have some SEO knowledge and cited the whiteboard Friday article at https://a-moz.groupbuyseo.org/blog/subdomains-vs-subfolders-rel-canonical-vs-301-how-to-structure-links-optimally-for-seo-whiteboard-friday.
While it is very possible that Rand Fiskin has a valid point I felt hesitant to let this be the final verdict. John Mueller from Google Webmaster Central claims that Google is indifferent towards subdomains vs subfolders.
https://www.youtube.com/watch?v=9h1t5fs5VcI#t=50
Also this SEO disagreed with Rand Fiskin’s post about using sub folders instead of sub domains. He claims that Rand Fiskin ran only 3 experiments over 2 years, while he has tested multiple subdomain vs subfolder experiments over 10 years and observed no difference.
http://www.seo-theory.com/2015/02/06/subdomains-vs-subfolders-what-are-the-facts-on-rankings/
Here is another post from the Website Magazine. They too believe that there is no SEO benefits of a subdomain vs subfolder infrastructure. Proper SEO and infrastructure is what is most important.
Again Rand might be right, but I rather provide a recommendation to my client based on an authoritative source such as a Google engineer like John Mueller.
Does anybody else have any thoughts and/or insight about this?
-
I think Mueller's main point may be that if you treat your subdomains separately from your main site, Google will treat them differently as well. For example, if you have three subdomains - www, blog and cloud - but all of them have different navigation, css and limited interlinking and little keyword theme commonality, Google will treat them as separate sites and you will suffer the dreaded subdomain issue.
BUT if you integrate the three domains well - same nav, same look & feel and lots of good contextual anchor text interlinking, Google will treat it as the same site and the subdomain issue will become moot.
Has anyone done any testing with those variables?
-
Yup! All the case studies I showed above (and plenty since) have demonstrated that you can boost traffic by moving from the subdomain to a subfolder.
-
Great thread! What about a situation where a blog already sits on a subdomain (bearing in mind it hasn't been driving a significant amount of traffic as the site is fairly new). My recommendation would be to move to subfolder, would you agree?
Thank you!
-
This is my new favorite quote... "I understand that Google's representatives have the authority of working at Google going for them, but I also believe they're wrong." (Rand Fishkin)
-
Greetings All,
So the debate goes on and I personally think the value of subfolders versus directories certainly makes sense especially from a linking, age and juice perspective. I do notice in most articles they talk about the benefits for subfolders as it relates to blogs. In past tests and studies, you have shed any insight into how this may affect ecommerce as it relates to countries.
We currently have each country on a subdomain and can run it through webmaster tools and geotarget the country however are considering switching to subfolders, based on all the articles we've read. This would in such drive many more links back to each new subfolder assuming the majority of our links are from "www". It would seem to make sense to switch to subfolders and would be especially helpful as new sub-folders were launched.
I was just wondering if the same argument can be made when it comes to ecommerce and country specific sites. Each site (currently different subdomains) uses a different language and currency. Meta and content is different for each. We launched "www" over 15 years ago but in the past 2 years have introduced various subdomains (ie new languages). As we enter into new countries, we are considering switching everything over to subfolders (obviously with 301'ing the subdomains over to the new subfolders so we dont lose all our existing links).
Im assuming since your studies indicate, you'd think this to be a good idea however all the talk has not been so much about countries and ecommerce. Any one have any light or information they can share with regards to the topic??
Thnkxs
-
Hi Rosemary - thankfully, I have data, not just opinions to back up my arguments:
- In 2014, Moz moved our Beginner's Guide to SEO from guides.a-moz.groupbuyseo.org to a-moz.groupbuyseo.org itself. Rankings rose immediately, with no other changes. We ranked higher not only for "seo guide" (outranking Google themselves) but also for "beginners guide" a very broad phrase.
- Check out https://iwantmyname.com/blog/2015/01/seo-penalties-of-moving-our-blog-to-a-subdomain.html - goes into very clear detail about how what Google says about subdomains doesn't match up with realities
- Check out some additional great comments in this thread, including a number from site owners who moved away from subdomains and saw ranking benefits, or who moved to them and saw ranking losses: https://inbound.org/discuss/it-s-2014-what-s-the-latest-thinking-on-sub-domains-vs-sub-directories
- There's another good thread (with some more examples) here: https://inbound.org/blog/the-sub-domain-vs-sub-directory-seo-debate-explained-in-one-flow-chart
Ultimately, it's up to you. I understand that Google's representatives have the authority of working at Google going for them, but I also believe they're wrong. It could be that there's no specific element that penalized subdomains and maybe they're viewed the same in Google's thinking, but there are real ways in which subdomains inherit authority that stay unique to those subdomains and it IS NOT passed between multiple subdomains evenly or equally. I have no horse in this race other than to want to help you and other site owners from struggling against rankings losses - and we've just seen too many when moving to a subdomain and too many gains moving to a subfolder not to be wary.
-
Hi,
I've not seen any comment from Googlers regarding this debate. I realize I'm keeping this in the Moz-sphere, which isn't quite what you're looking for, but this quote is from Moz's domain setup guide:
"Since search engines keep different metrics for domains than they do subdomains, it is recommended that webmasters place link-worthy content like blogs in subfolders rather than subdomains. (i.e. www.example.com/blog/ rather than blog.example.com) The notable exceptions to this are language-specific websites. (i.e., en.example.com for the English version of the website)."
I think that quote is pretty compelling towards the subdirectory side of this quandry. I also recommend checking out the comments on the Whiteboard Friday link you posted, there is plenty of evidence there as well.
Unfortunately, this debate will probably go on forever until we get definitive word from Google.
-
Can you share some details why you want to "move" the store locator to a subdomain? That makes me think it is already operational in a subfolder at the moment. In general, I would recommend not moving content unless there is a very good reason for it.
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
-
Subdomain replaced domain in Google SERP
Good morning, This is my first post. I found many Q&As here that mostly answer my question, but just to be sure we do this right I'm hoping the community can take a peak at my thinking below: Problem: We are relevant rank #1 for "custom poker chips" for example. We have this development website on a subdomain (http://dev.chiplab.com). On Saturday our live 'chiplab.com' main domain was replaced by 'dev.chiplab.com' in the SERP. Expected Cause: We did not add NOFOLLOW to the header tag. We also did not DISALLOW the subdomain in the robots.txt. We could have also put the 'dev.chiplab.com' subdomain behind a password wall. Solution: Add NOFOLLOW header, update robots.txt on subdomain and disallow crawl/index. Question: If we remove the subdomain from Google using WMT, will this drop us completely from the SERP? In other words, we would ideally like our root chiplab.com domain to replace the subdomain to get us back to where we were before Saturday. If the removal tool in WMT just removes the link completely, then is the only solution to wait until the site is recrawled and reindexed and hope the root chiplab.com domain ranks in place of the subdomain again? Thank you for your time, Chase
Intermediate & Advanced SEO | | chiplab0 -
Onsite SEO vs Offsite SEO
Hey I know the importance of both onsite & offsite, primarily with regard to outreach/content/social. One thing I am trying to determine at the moment, is how much do I invest in offsite. My current focus is to improve our onpage content on product pages, which is taking some time as we have a small team. But I also know our backlinks need to improve. I'm just struggling on where to spend my time. Finish the onsite stuff by section first, or try to do a bit of both onsite/offsite at the same time?
Intermediate & Advanced SEO | | BeckyKey1 -
Best server-side sitemap generators
I've been looking into sitemap generators recently and have got a good knowledge of what creating a sitemap for a small website of below 500 URLs involves. I have successfully generated a sitemap for a very small site, but I’m trying to work out the best way of crawling a large site with millions of URLs. I’ve decided that the best way to crawl such a large number of URLs is to use a server side sitemap, but this is an area that doesn’t seem to be covered in detail on SEO blogs / forums. Could anyone recommend a good server side sitemap generator? What do you think of the automated offerings from Google and Bing? I’ve found a list of server side sitemap generators from Google, but I can’t see any way to choose between them. I realise that a lot will depend on the type of technologies we use server side, but I'm afraid that I don't know them at this time.
Intermediate & Advanced SEO | | RG_SEO0 -
Turning off a subdomain
Hi! I'm currently working with http://www.muchbetteradventures.com/. They have a previous version of the site, http://v1.muchbetteradventures.com, as sub domain on their site. I've noticed a whole bunch of indexing issues which I think are caused by this. The v1 site has several thousand pages and ranks organically for a number of terms, but the pages are not relevant for the business at this time. The main site has just over 100 pages. More than 28,400 urls are currently indexed. We are considering turning off the v1 site and noindexing it. There are no real backlinks to it. The only worry is that by removing it, it will be seen as a massive drop in content. Rankings for the main site are currently quite poor, despite good content, a decent link profile and high domain authority. Any thoughts would be much appreciated!
Intermediate & Advanced SEO | | Blink-SEO0 -
Best way to noindex an image?
Hi all, A client wanted a few pages noindexed, which was no problem using the meta robots noindex tag. However they now want associated images removed, some of which still appear on pages that they still want indexed. I added the images to their robots.txt file a few weeks ago (probably over a month ago actually) but they're all still showing when you do an image search. What's the best way to noindex them for good, and how do I go about implementing it? Many thanks, Steve
Intermediate & Advanced SEO | | steviephil0 -
Is it bad to host an XML sitemap in a different subdomain?
Example: sitemap.example.com/sitemap.xml for pages on www.example.com.
Intermediate & Advanced SEO | | SEOTGT0 -
Franchise sites on subdomains
I've been asked by a client to optimise a a webpage for a location i.e. London. Turns out that the location is actually a franchise of the main company. When the company launch a new franchise, so far they have simply added a new page to the main site, for example: mysite.co.uk/sub-folder/london They have so far done this for 10 or so franchises and task someone with optimising that page for their main keyword + location. I think I know the answer to this, but would like to get a back up / additional info on it in terms of ranking / seo benefits. I am going to suggest the idea of using a subdomain for each location, example: london.mysite.co.uk Would this be the correct approach. If you think yes, why? Many thanks,
Intermediate & Advanced SEO | | Webrevolve0 -
Should we stream videos from a subdomain or subfolder?
This is causing some hand-wrangling and I need some help. Let's say we were developing rich video content for our products and our agency is hosting the content on a new external server. There are already plans to link to these videos from product detail pages, category pages, and landing pages on our main website: www.example.com. Would it be better to create a new subdomain or to use a subfolder with a reverse proxy technique for this video content? It's not truly a microsite and will not have a gallery page to navigate the various videos. For example, would it be better to use this: video.example.com/ ...or this (executed with a reverse proxy😞 www.example.com/video/ Of course, regardless of whether this new content will live on a subdomain or within a subfolder, we plan on creating a video Sitemap using guidance from Justin Hammack in this terrific post.
Intermediate & Advanced SEO | | Ryan-Ricketts1