When most businesses think about ecommerce SEO, they think about their website.
Product pages. Category pages. Content. Internal links. Technical fixes.
All important.
But there is another source of product information sitting outside your website that Google uses to understand what you sell: Google Merchant Center.
For many ecommerce brands, Merchant Center is treated as something that was set up when Google Shopping launched and has barely been touched since.
Products are syncing. Prices look right. Ads are running.
Job done.
Except the quality of the information you send to Google can influence how well Google understands your products, which searches they are relevant to and how they are presented across Shopping and free product listings.
That is where Google Merchant Center optimisation becomes interesting from an SEO perspective.
The optimisation is not happening on your website.
It is happening in the product data you give Google.
Is Google Merchant Center optimisation actually SEO?
Not in the traditional sense.
You are not changing title tags, adding internal links or trying to get a product page from position eight to position three.
But the thinking behind it is very similar.
Good SEO helps a search engine understand:
- What something is
- Who it is relevant to
- What problem or need it addresses
- How it differs from similar options
- When it should be shown
Merchant Center optimisation asks many of the same questions about your products.
The work happens in your product feed rather than directly on the page.
That distinction matters because an ecommerce brand can have a well-optimised website but still be giving Google very limited product information through Merchant Center.
Think of it as another layer of search visibility.
Your website tells Google about your pages.
Merchant Center tells Google about your products.
You want both telling a clear and consistent story.
What does Google Merchant Center actually do?
In simple terms, Merchant Center is where Google receives structured information about the products you sell.
That can include things such as:
- Product name
- Description
- Price
- Availability
- Brand
- Product category
- Product type
- Size
- Colour
- Material
- Product specifications
- Key product features
That information may be sent automatically from platforms such as Shopify or WooCommerce, through a feed management tool, from a spreadsheet or through a more customised integration.
Google then has a much more structured description of your catalogue than it could get from simply looking at a webpage.
The problem is that automatically supplied data is not necessarily well-optimised data.
A feed can be technically working while still leaving a lot of useful information out.
That is why product feed optimisation should be considered alongside the rest of your ecommerce search strategy.
What can you actually optimise?
The best place to start is with the information Google receives about each product.
We recently reviewed Google Merchant Center for an ecommerce client and found a useful example of this.
When we compared their product data with competitors appearing in Google Shopping, some competitors were giving Google much more detail about their products.
Their listings included information such as:
- Key ingredients
- The concentration of important ingredients
- Who the product was designed for
- The problem or need it addressed
- Key benefits
- Product format and characteristics
Our client’s products contained much of this information on their website, but it was not being passed through to Google in the same structured way.
So Google could see the product.
It just wasn’t being given the full picture.
For example, imagine two businesses sell a face moisturiser.
One tells Google:
Hydrating Face Cream – 50ml
The other also supplies information such as:
- Key ingredients: Vitamin E, glycerin and natural AHAs
- Ingredient strength: 12% Vitamin E
- Suitable for: Dry, dehydrated or sensitive skin
- Product type: Daily face moisturiser
- Key benefit: Intensive hydration and skin-barrier support
- Finish: Non-greasy cream
They may be very similar products, but Google has significantly more information to work with for the second one.
We found a similar opportunity with product titles and descriptions.
Some products had useful details available on the website, such as ingredient strengths, the particular skin concern they were designed for or what was included in a set, that were not being communicated clearly through the feed.
So part of the Google Merchant Center optimisation work was identifying those gaps and giving Google a more complete, structured description of each product.
That is the core of product feed optimisation.
It is not about filling every possible field or squeezing keywords into the feed.
It is about looking at what Google currently knows about your products and asking:
What useful information are we leaving out?
Sometimes the opportunity becomes much clearer when you compare that answer with what your competitors are already giving Google.
Do you need to optimise every product?
Not necessarily.
If you have thousands of products, working through every SKU one by one is unlikely to be the best starting point.
Prioritise.
You might start with:
- Your best sellers
- High-margin products
- Important product categories
- Products already receiving strong visibility
- Products with weak or incomplete information
- Ranges you specifically want to grow
For example, if one product is already appearing regularly in Google but its title barely explains what it is, improving that product may be more worthwhile than starting with something that receives very little demand.
This is the same principle we apply to ecommerce SEO more broadly.
Do not optimise something simply because you can.
Look for where the change is most likely to make a difference.
There is one catch: you need to know where the data comes from
This is where Merchant Center optimisation can become more complicated than editing a few fields.
Your product information might originate from Shopify, WooCommerce, a feed management platform, a spreadsheet, an app or another integration.
Make a change in the wrong place and the next automatic sync could overwrite it.
You may also find that the information you want to give Google does not fit neatly into your existing feed and needs to be supplied another way.
So before implementing recommendations, you need to understand:
Where is Google getting this information from, and where should the change actually be made?
That is an important part of product feed optimisation.
A good recommendation is not particularly useful if it disappears during the next product sync.
Your website and Merchant Center should work together
Merchant Center optimisation does not replace ecommerce SEO on your website.
It complements it.
Your website still needs strong product and category pages.
But the product information you provide directly to Google also deserves attention.
The two should tell the same story.
If your website clearly explains that a product is a lightweight waterproof hiking jacket, but the feed simply calls it Alpine Jacket, you are giving Google less information than you have available.
That is the opportunity.
SEO is not always about changing another page on your website.
Sometimes it is about improving the information you provide to the platforms that help customers discover your products.
Your next ecommerce SEO opportunity may be outside your website
Google Merchant Center is easy to treat as a technical requirement for running Shopping ads.
Products are syncing. Nothing is broken. Move on.
But “working” and “well optimised” are not the same thing.
Reviewing your product feed through an SEO lens can uncover opportunities to give Google clearer titles, stronger descriptions, more accurate product classifications and richer information about what you actually sell.
The individual changes may look straightforward.
Working out which changes matter, how they should be applied across a large catalogue and where they need to be implemented is the more important part.
That is where a structured Merchant Center review can help.
Our Google Shopping services include product feed and Merchant Center optimisation, helping ecommerce brands identify where their product data can be improved and turn those recommendations into something that can actually be implemented.
FAQs
What is Google Merchant Center optimisation?
Google Merchant Center optimisation is the process of improving the product information you provide to Google. This can include product titles, descriptions, categories, product types and additional product details.
The aim is to give Google clearer, more useful information about what you sell.
Is Google Merchant Center optimisation SEO?
It is not traditional on-site SEO because the changes are made within your product data rather than directly on your website.
But the principle is similar: helping Google better understand what you offer and when it may be relevant to someone searching for it.
Should I optimise my entire product feed?
Not always.
For larger catalogues, it often makes more sense to prioritise important products, categories and obvious data-quality gaps first.
The right approach depends on your catalogue, how your feed is set up and where the strongest opportunities are.
