Connect with us


Subdomain to Main Domain Site Migrations



Subdomain to Main Domain Site Migrations

Google’s John Mueller was asked about migrating a subdomain to the main domain. His answer explained why this kind of site migration can be difficult to do. He explained what to look for in order to increase chances of success.

Moving from Subdomain to Main Domain

The person asking the question shared the background information that the subdomain of the site has been around for decades. She explained that it is the most important part of the site.

Because that section of the site is so important she was concerned about avoiding any negative impact from migrating the subdomain content to a new location within the main domain.

She also mentioned that the topic of the subdomain was politics and daily life issues like public health policy.

John Mueller’s answer focused on what to watch out for in general about moving from a subdomain to a main domain.

However the last part of his answer consists of additional advice related to the Google News side of publishing.

Subdomain Migration: Hard to Know Exact Outcome

John Mueller paused for a moment to think about his answer.


His thoughtful pause gave the impression that the answer was complex and that he was taking a moment to organize how to best answer the question.

John Mueller Pauses to Think About His Answer

Google’s John Mueller pauses to think about his answer to a subdomain site migration answer

When he answered, John paused a couple times, again giving the impression that this was a tricky question to answer.

The reason may have been because the main point of his answer was that the outcome of a subdomain to a main domain migration is more uncertain than a one-to-one site migration from one domain to another domain.

John Mueller answered:

“Uhm… I… I think you can do this

So… let me see… uh…

See… I think…

One of the key aspects here that uh… is important here when you’re moving from a subdomain to the main domain, to a different directory for example, is that we need to look at the new website overall and kind of reevaluate the overall situation.

And that means that it’s hard to know ahead of time what exactly will happen.”

I think it’s important to underline that the issue with a subdomain to a main domain migration is that, according to John, it could trigger a reevalution of what is now, according to Mueller, a new website.


Whereas in a one-to-one site migration there is no need to reevaluate the entire site because the site remains the same.

Subdomain Migrations: It’s Hard to Know Exactly

Mueller continued his answer, affirming that the outcome of a subdomain to main domain migration can be hard to know exactly.

“And it’s something where you can use your knowledge and your experience to figure out a little bit what possibly could happen.

But it’s hard to know exactly because if you move from one domain to a different domain then it’s easy for our systems to say, take everything here and and just copy it over here.

But if you move from a subdomain to a main domain, you’re essentially merging different parts of the website.

And that final outcome that you have, will depend on your final structure.”

Plan Subdomain Migration Ahead of Time

Mueller next encouraged planning ahead of time by mapping the site migration from the old location to the new location in the main domain.

Mueller also suggested, in general terms, the value of mapping the old domain prior to the site migration in order to validate the success of the subdomain migration.

In my opinion, it may be useful to create a map of the old subdomain structure with a crawling tool like Screaming Frog, create the 301 redirects after the site migration, and then do a full crawl of the old subdomain to make sure that all the 301 redirects are in place and to investigate any 404 page not found response as signals of a possible mistake.


Mueller continued his answer:

“So, I think overall it’s something where you can do these kinds of changes.

But you have to watch out that you do them in a reasonable way.

And what I would recommend doing here is making sure that you have a very clear mapping of your old website to the new one and then really checking all of those old URLs.

You can use… there are various tools to test that.

But really make sure that everything is moved properly.

And then double-check by crawling the main domain again separately to make sure that really, your new website structure is okay and all of the pages can be found.

And for the most part, I assume that that will be fine.

I mean, it’s possible to do other mistakes as well. But those are usually the more common types of issues.”


Unclear on How Long Migration Effects Will Linger

Every site is different in terms of topic, size and how that topic fits into the website overall. John was understandably vague about how long the site migration would take until things settled down.

Mueller explained:

“I don’t know what I would recommend in terms of how long this will take or what the final effect will be.

I suspect maybe you’ll see an effect for a couple of weeks until things settle down.

But it should be possible.”

Site Migration Advice for Google News Publishers

Mueller next shared advice that was specific to Google News publishers:

“If you’re a Google News publisher, then I would also make sure that you contact whoever on the Google News site that is appropriate for you, in the Help Center for Google News publishers.

There’s also a contact form, just to let them know that you’re moving from this set of URLs to a different set of URLs.

Sometimes they need to make some changes in the Publisher Center… I don’t know all of the details there.

But just kind of to make sure that they’re aware of this as well.


But otherwise for search itself, making that move, making sure everything is lined up, is essentially what you need to do.”

Subdomain to Main Domain Site Migrations

Making big website changes are scary, especially when a site is currently performing well. Something needs to be broken in order to fix it, right?

Any changes should be motivated by improvements in something that is currently less than it could be, like improving the user experience, for example.


How to Move Subdomain to Main Domain

Watch at the 45:05minute mark:

fbq('init', '1321385257908563');

fbq('track', 'PageView');

fbq('trackSingle', '1321385257908563', 'ViewContent', { content_name: 'subdomain-site-migrations', content_category: 'news seo ' });

Source link


Decoded Headless CMS & SEO



Decoded Headless CMS & SEO

What is headless CMS? Why are more companies looking into it nowadays?

Powered by greater flexibility and scalability, it might be the next generation of content management systems.

Lidia Infante, Senior SEO Manager at, joined me on the SEJ Show to explain how headless CMS works and how it can be particularly beneficial for ecommerce businesses.

I don’t have to build every page. I create the content in a core database, a central source of truth. And then, I deploy it following a template.–Lidia Infante, [16:00]

I think there’s a little bit of a misconception about headless. A lot of people out there, the conversations I’m having with people that are not tech SEOs is they feel that just utilizing a headless means that it’s automatically going to be faster, quicker, and a better experience. –Loren Baker, [25:15]

For most ecommerce sites, I would recommend going with a headless solution, especially if you’re on a direct-to-consumer side with a big brand.–Lidia Infante, [45:09]

[00:00] – Lidia’s background.
[10:36] – What is headless CMS & how is it helpful?
[17:20] – Do you build from scratch in a headless environment?
[22:00] – Are headless CMS quicker?
[26:00] – SEO optimizations in headless.
[31:30] – Other benefits of using a headless CMS system.
[36:00] – How well does AI content rank in it?
[39:52] – Where does Lidia see headless going in the next four to five years?
[44:45] – What kind of business should look into headless CMS?
[49:59] – How important is JavaScript?


Resources mentioned: – Free boosted Sanity plan for SEJ readers

Regarding SEO and other stuff you can do, I think the main pain point that Headless solves is content velocity.–Lidia Infante, [28:00]

Headless CMS can guide you a little bit more when it comes to optimizing web performance. Different headless CMSs will help you achieve amazing core web vitals differently.–Lidia Infante, [26:19]

B2C brands need to ensure that the experience they provide on their website is not the typical ecommerce experience of title, product, picture, price, and description. It’s more similar to the experience they can provide in a shop. –Lidia Infante

For more content like this, subscribe to our YouTube channel:

Connect with Lidia Infante:

Lidia Infante is a consultant, writer, and speaker who has been working to help businesses grow their reach through SEO in European markets, the US, and Australia.

She got her start on the business side of things through psychology, allowing for organic growth strategies that are now driving ecommerce sites’ success!


As part of her passion for SEO, she enjoys regularly participating in podcasts and webinars in the SEO community. She writes about international strategy, digital business, and women’s rights on her website.

Connect with Lidia on LinkedIn:
Follow her on Twitter:
Visit her website:

Connect with Loren Baker, Founder of Search Engine Journal:

Follow him on Twitter:
Connect with him on LinkedIn:

!function(f,b,e,v,n,t,s) {if(f.fbq)return;n=f.fbq=function(){n.callMethod? n.callMethod.apply(n,arguments):n.queue.push(arguments)}; if(!f._fbq)f._fbq=n;n.push=n;n.loaded=!0;n.version='2.0'; n.queue=[];t=b.createElement(e);t.async=!0; t.src=v;s=b.getElementsByTagName(e)[0]; s.parentNode.insertBefore(t,s)}(window,document,'script', '');

if( typeof sopp !== "undefined" && sopp === 'yes' ){ fbq('dataProcessingOptions', ['LDU'], 1, 1000); }else{ fbq('dataProcessingOptions', []); }

fbq('init', '1321385257908563');

fbq('init', '164237177383067'); // custom pixel

fbq('track', 'PageView');

fbq('trackSingle', '1321385257908563', 'ViewContent', { content_name: 'headless-cms-seo', content_category: 'cms search-engine-journal-show wp' }); } });

Source link

Continue Reading

Subscribe To our Newsletter
We promise not to spam you. Unsubscribe at any time.
Invalid email address