The one topic I’ve seen Google and SEOs disagree on the most is where very good place to host content is. SEOs say subdomains aren’t optimal, and Google says it doesn’t matter because they can read and understand your content wherever it is. Google even put under a video to try to clarify the matter, but no one was satisfied with their answer.
So what’s the unplug? While it’s true Google has no problem understand content on subdomains, SEOs say that content doesn’t perform as well in Google’s search engine. Google disagrees and says that subdomains aren’t a problem, yet the SEO industry continues to publish case study after case study that refutes Google’s claim.
Until Google offers an alternative explanation of what the SEO world is ensure, marketers still have to decide how to host their content.
As an SEO, my recommendation is to host your content on your primary domain- unless you have a very good reason not to. Even if Google turns out to be correct, and it doesn’t matter either way for performance, organizing your content in subdirectories on your primary domain is the better decision for your infrastructure and long-term SEO.
It’s a Technical Difference
The difference between placing a blog at blog.brand.com or brand.com/blog seems insignificant. We’re putting blog at the end of the URL instead of the beginning, right?
The distinction goes back to the early days of the internet before the web existed. It was conventional for system administrators to host additional services on subdomains, like mail.domain.com for the email server, or ftp.domain.com to filesystem access.
For the web to come into being, servers needed to be able to deliver HTML files to remote users, so system administrators added web servers to the network and attained them available from the www subdomain. That’s why everyone’s URL is www.brand.com. So you’re probably hosting your content on a subdomain already, but it’s your primary subdomain.
What this blog explores is whether you should set things like your blog or international content on subdomains other than your primary.
The Results are In
SEO’s aren’t incorrect to believe subdirectories do better for organic rankings. There are several published examples of brands moving their content to their primary domain and ensure performance boosts. Rand Fishkin was gracious enough to compile a list of instance surveys that document this impact.
The instances in Rand’s list that stimulate the occurrence most clearly are here:
There’s even an example of a brand moving their blog to a subdomain and seeing a performance drop-off.
Would you assure a similar impact if you moved your blog from blog.brand.com to brand.com/ blog? Hard to say. Every case is different, and migrating content is rarely the only alter being made in these examples.
Maintain Your Link Authority in One Place
The case against subdomains is not just about immediate rankings; it’s also about guiding your SEO strategy into the future. This is the main reason why I recommend keeping content on the primary domain whenever possible.
Where would you instead host your content, on two domains with 1,000 backlinks each, or one domain with 2,000 backlinks?
These are the possible futures you’re choosing between when considering using a subdomain for your content. Over the years, your content is going to earn backlinks from all over the web. If your content is in a separate location, like a blog subdomain, you’re splitting your backlinks between the two.
Suppose five years down the line your website is redesigned, and you retire the subdomain and be changed to a subdirectory structure for your blog. You’ll be in a situation where you have to redirect all those connects from the subdomain to the primary domain, and as we know, redirects waste connect authority.
Having to redirect a lot of backlinks is not a great position to be in. You would have been better off if those connections pointed to the primary domain in the first place.
Maintain Your Overhead Low
How many websites do you want to pay for? How many web applications do you want your engineers to maintain? Every subdomain you is in addition to your website introduces another hosting surrounding to your technology stack and all the business concerns that come with it.
A new subdomain could mean additional costs for any of these:
3rd party hosting or subscription fees Additional SSL certificates or a wildcard certification Developer hours for the subdomain CMS Additional colocation space or network hardware
You would also have to manage login credentials, analytics, security, and webmaster consoles for the subdomain. If you have regulatory compliance to worry about, these headaches add up fast.
The best way to avoid having to deal with the subdomain question at all is starting with a website that does everything you want. Very often, I’ll find brands that try to tack on functionality later due to lack of foresight.
Begin with an infrastructure that will do everything you need. If you’re going to need a blog or eCommerce experience, choose a CMS with those built into the app. Or you were able to even go with an extensible CMS, like WordPress or Drupal. Shopify has a lot of SEO quirks, but it’s relatively solid and comes with a few site speed improvements out of the box.
Planning ahead also includes anything you’re going to test for your digital strategy. If you’re considering trying out blogging, and I recommend you do if you aren’t, plan how you’re going to proceed after a successful test. You will need to find a way to add a blog to the main domain if the content strategy test runs( and it probably will .)
Sometimes a Subdomain is the Right Choice
There are a few cases where a subdomain attains the most sense for your brand outside of technical necessity. Usually, it’s for a sub-brand or a product that is substantially different than what the brand ordinarily sells.
If your content fulfills most of these criteria, then you should probably use a subdomain 😛 TAGEND
The content or branding isn’t different enough to justify an entirely different domain User would be confused if they navigated between the two content experiences The content sells a completely independent product or is part of a portfolio of products
Google itself is pretty good at this. They have developers.google.com, assistant.google.com, cloud.google.com, store.google.com… and the listing goes on. Each subdomain is an aspect of Google, but totally independent and hosts its own thing.
Another valid suit for a subdomain is content that will never need to be indexed by a search engine. Paid landing pages, content behind login screens, and company intranets are all good examples.
Mobile and International Consideration
I’ve seen a lot of brands make trouble for themselves by adopting subdomains for mobile and international versions of their websites. They’re the worst option for either strategy and generate a lot of headache for your SEO squad down the line.
The future of the web is responsive and mobile-first. It’s the easiest and simplest style to adapt to modern internet usage. Brands that disregard this tend to tack on mobile subdomains that plague their technical squads with problems like 😛 TAGEND
Wasted crawling budget and canonicalization issues Server-side device detection and redirect manage Maintaining content parity between mobile and desktop sites Shrinking content and navigation to fit mobile screens
International websites are usually implemented in three ways: ccTLDs, subdirectories, and subdomains. Subdirectories have no upsides over the other two options. ccTLDS aren’t optimal either, but at least they contain a strong signal about which country they’re targeting.
Using a subdirectory strategy for international websites is something I insure more brands utilizing every year. I think they are realizing the benefits of having everything in one place: one CMS, one development team, better content parity, and easier management of hreflang tags.
Imagine using a subdomain strategy for your blog, mobile site, and international content. Your URLs would look like this: m.fr.blog.brand.com. What a mess.
The Dispute Will Rage On
Correct me if I’m wrong, but I don’t think anyone in the SEO industry has proven the technological reason why subdomains tend to perform worse than subdirectories. I have my mistrusts, but nothing that’s easily tested. Google definitely isn’t going to taken forward with the mechanism; they never talk about how their systems actually work.
Like Google’s 200+ secret herbs and spices, we’ll never genuinely know for sure.
Unless there is a new wave of occurrence examines concluding that switching to a subdirectory strategy destroyed their rankings or nothing happened, it’s a safe bet to be changed to a subdirectory.
Read more: portent.com