Structured data (SEO)

Specifico automatically adds your product specifications to the page's Schema.org structured data, so search engines can read them as machine-readable product attributes. There's nothing to configure — it works as soon as a product has specifications.

What it does

WooCommerce already outputs Product structured data (JSON-LD) on each product page. Specifico adds to that existing block rather than printing a separate one, appending every specification as an additionalProperty entry. This keeps a single Product entity per page, which is what search engines expect.

The output reflects the specifications shown on the product page — if the Specifications tab is hidden for a product, nothing is added.

Example

For a product with a few specifications, the structured data looks like this:

<script type="application/ld+json">
{
  "@context": "https://schema.org/",
  "@type": "Product",
  "name": "Example Laptop",
  "additionalProperty": [
    { "@type": "PropertyValue", "name": "RAM", "value": "16 GB" },
    { "@type": "PropertyValue", "name": "Internal Storage", "value": "256 GB" },
    { "@type": "PropertyValue", "name": "Expandable", "value": "Up to 1 TB" },
    { "@type": "PropertyValue", "name": "GPU", "value": "Integrated" }
  ]
}
</script>

Specification values are output as plain text, so any links or formatting in a value are stripped in the structured data even though they still display in the visible table.

Verifying the output

1. Open a product page on your store front end.
2. View the page source and search for additionalProperty (it sits inside the application/ld+json block).
3. Paste that block into Google's Rich Results Test or the Schema Markup Validator to confirm it's valid.

Customizing or disabling it

Use the specifico_structured_data filter to modify the properties before they're added, or return an empty array to turn the feature off.

// Disable Specifico's structured data entirely.
add_filter( 'specifico_structured_data', '__return_empty_array' );

// Add a custom property alongside the specifications.
add_filter( 'specifico_structured_data', function ( $properties, $product_id ) {
    $properties[] = [
        '@type' => 'PropertyValue',
        'name'  => 'Warranty',
        'value' => '2 years',
    ];
    return $properties;
}, 10, 2 );

The specifications themselves come from the same resolved data as the table, so the specifico_table_groups filter also affects what's emitted here.