Understanding SEO for Different CMS Platforms
Lewis McCarthy
SEO Lead
You can usually tell when a site’s CMS is the problem within about ten minutes. You open the site, check the templates, look at how categories are built, see what happens with filters, and there it is: the reason the SEO team has been “working on rankings” for six months while the site is still quietly fighting against itself.
This is the bit too many brands get wrong. They treat SEO like it sits on top of the website, when in reality it runs through it. Your content, your page structure, your internal linking, your product pages, your redirects, your metadata, your speed, your crawlability, your ability to scale without chaos, all of it is shaped by the platform underneath.
So yes, your CMS platform does make a difference. Quite a big one, actually. And if you are running an eCommerce brand, it’s worth understanding where your platform helps, where it gets in the way, and where “it’s fine for now” starts costing you traffic and sales.
One of the most outdated bits of SEO advice still doing the rounds is this idea that if you install the right plugin or app, your platform is “SEO-ready”. A plugin can help you edit title tags, give you a traffic light score or remind you to add alt text. But that’s not what decides whether your website can perform properly in search.
SEO is shaped by how your CMS handles technical basics and scale. Can you manage indexation properly? Can you control templates cleanly? Can you stop useless pages from being crawled? Can you build landing pages without breaking internal structure? Can you update metadata in bulk without relying on a developer every time someone wants to change a category title?
In our experience, businesses often blame SEO when the issue is actually platform friction. The strategy might be right, the targeting might be right, the intent might be right, but the CMS makes every useful improvement harder than it should be. And when something is hard to maintain, it usually gets ignored.
This is where SEO stops being a marketing department problem and becomes a customer experience problem. Your CMS affects how your pages load, how products are found, how filters behave, how duplicate pages are created, how internal links work, and how easy it is for someone to get from a search result to the exact thing they want to buy.
If someone lands on a clunky collection page with poor faceted navigation, broken canonical handling, thin content and a terrible mobile experience, they don’t care whether your SEO strategy looked good in a quarterly deck; they leave. Search visibility and user experience are tied together far more than most businesses admit. That’s why we don’t look at SEO in isolation. We look at how the site behaves, how it’s structured, and whether it actually helps a customer move forward. A platform that creates a mess behind the scenes usually creates friction for users, too.
Shopify gets talked about like it solves everything. It doesn’t, but it does get a lot right. For many eCommerce brands, especially SMEs and growth-stage businesses, Shopify gives you a very solid SEO starting point. It’s relatively clean, easy to manage, and far less likely to become a bloated Frankenstein compared to some older custom setups. It’s also generally easier to keep content, collections and product management moving without endless technical bottlenecks.
That said, Shopify has its quirks. Its URL structure is opinionated, which is a polite way of saying you don’t always get your own way. Product and collection handling can create duplication issues if left unmanaged. Tag and filter pages can spiral if you are not careful. Blog functionality is perfectly serviceable, but nobody’s calling it elegant. And if your theme is overloaded with apps, scripts and bad UX choices, the platform’s strengths disappear pretty quickly.
Shopify is good for SEO when the store is built with intent. It’s not good for SEO just because it is Shopify. We see this all the time. Brands migrate to Shopify expecting rankings to improve automatically, then wonder why performance flatlines. The issue is usually not the platform. It’s the setup, the structure, or the lack of a proper content and category strategy.
WooCommerce can be brilliant; it can also be an absolute headache. The biggest strength of WooCommerce is flexibility. You can shape it around almost anything, which is useful if you have a strong dev team, clear SEO requirements, and a site architecture that has actually been thought through.
The biggest weakness of WooCommerce is also its flexibility because you can shape it around almost anything. Over time, many WooCommerce sites become patchwork websites held together by plugins, workarounds and good intentions. Pages get duplicated, taxonomies get out of hand, category structures become inconsistent, performance drops, and nobody is quite sure which plugin is controlling what anymore.
From an SEO point of view, WooCommerce can work very well when it is governed properly. You get more control than you do on some hosted platforms, and for content-heavy eCommerce brands, that can be a real advantage. But control only helps if someone is actually controlling it. If your WordPress install is bloated, your templates are inconsistent, and your category logic was clearly decided in a panic three years ago, no amount of keyword optimisation is going to clean that up.
Magento has long been the “serious eCommerce” choice, and in some cases, that is still true. For larger catalogues, more complex product structures, multi-store setups and enterprise needs, it can be incredibly capable. From a pure SEO perspective, it gives you room to do a lot. You can build at scale, manage large structures, and create technically sophisticated environments.
The catch is this: most businesses don’t need that level of complexity, and many of the ones using it are not actually benefiting from it. We’ve seen brands sit on platforms that are expensive to maintain, slow to update, awkward for content teams to use, and so development-heavy that even sensible SEO improvements get parked for months. At that point, the platform isn’t supporting growth; it’s dragging behind it.
Magento can be excellent when it’s well-resourced and managed properly. It’s a bad fit when the business needs agility, not architecture for architecture’s sake. If your team avoids updating the site because every change feels like a project, that’s not a platform advantage.
Headless builds get sold with a lot of confidence and not always enough honesty. Yes, they can be fast. Yes, they can create flexible front-end experiences. Yes, they can be a good option for brands with complex needs. But they can also create very avoidable SEO problems if SEO was not part of the build from the start. And quite often, it was not.
We still come across custom or headless builds where simple SEO requirements have somehow become “technical requests”. Basic things like metadata management, canonicals, schema control, internal linking, XML sitemaps, redirects, content modules and noindex rules should not require a workshop and a sprint plan.
A good custom build can be excellent for SEO. A bad one usually looks polished on the surface and broken underneath. This is why platform choice should never be driven by what sounds impressive in a stakeholder meeting. It should be driven by what your team can actually manage, what your customers need, and what your growth strategy requires over the next few years.
You don’t always need a full platform migration to improve SEO, but you do need to know whether your CMS is creating structural issues. There are some very common signs. If publishing content feels slow or awkward, that’s a problem. If category pages are hard to optimise properly, that’s a problem. If product pages cannot be scaled cleanly, that’s a problem. If your faceted navigation creates thousands of indexable low-value URLs, that’s definitely a problem. If technical SEO fixes are constantly delayed because the CMS makes everything harder than it should be, then your platform is affecting performance, whether anyone wants to admit it or not. And perhaps the biggest red flag of all: if your site team has quietly started building around the CMS rather than using it properly, you have outgrown it. That doesn’t always mean “replatform immediately”. It does mean stop pretending the issue is just content or rankings.
This is another reason brands make poor platform decisions. They get broad, generic advice from people who are not looking closely enough. Someone says Shopify is best for SEO. Someone else says WordPress gives you more control. Someone on LinkedIn says headless is the future. A dev agency says the current setup is fine because technically “it can all be done”.
Technically, almost anything can be done. The better question is whether it can be done efficiently, sustainably, and without making your team miserable. The best CMS for SEO is the one that supports good decisions consistently. It helps your team publish better content, manage templates properly, structure products clearly, control crawl waste, improve speed, and create a better journey for the customer.
When we assess SEO performance on a site, we’re not interested in platform debates for the sake of it. We are trying to understand whether the website can support growth without constant compromise. We look at how categories are built, how product pages scale, how filters and faceted navigation behave, how metadata is managed, how templates are controlled, how internal linking is handled, and how easy it is to actually improve things without introducing new issues every month. We also look at who needs to use the site day to day – that part gets ignored far too often.
A CMS might be technically strong and still be a bad fit if your content team cannot use it confidently or your internal workflows grind to a halt every time something needs updating. SEO does not happen in a vacuum. It happens inside real businesses with real bottlenecks. The best platform decision is usually the one that makes the right things easier to do well, repeatedly.
Start by being honest about whether your CMS is helping or hindering your SEO. If your site is hard to manage, difficult to optimise, full of workarounds, or constantly creating technical mess, stop treating that as normal, it’s not. And it is probably affecting more than rankings. It’s likely affecting your customer experience, your conversion rate, and how quickly your team can act on opportunities.
If you are choosing a new platform, bring SEO into the conversation early. That’s how you avoid expensive fixes, migration headaches and performance drops that could have been avoided.
And if you are already on a platform that should work well, but performance still is not where it should be, look deeper than keywords and content volume. The issue may be structural.
