SEO - Dynamic Descriptions

General Information

Two everyday SEO problems show up on most Magento stores. First: thousands of products and categories ship with empty meta titles or meta descriptions because nobody had time to write them all — and Magento's default fallback (an empty <meta> tag) is worse than a generated one. Second: the long, keyword-rich category description that's great for SEO sits above the product grid where it pushes products below the fold and tanks conversion.

The Qoliber SEO Dynamic Descriptions extension fixes both: it auto-fills missing meta fields from the entity itself, lets you template category descriptions with a safe Twig engine, and repositions the long-form copy below the grid where it earns SEO without hurting UX.

What Does This Extension Do?

Auto-fill empty meta titles on products and categories — uses the product/category name when the meta-title field is blank.
Auto-fill empty meta descriptions — uses the product description when the meta-description field is blank.
Reposition category descriptions — moves the long-form description below the product list and pagination, keeping products above the fold.
Strip descriptions on paginated views — page 2, 3, 4 of a category get the description stripped, eliminating duplicate-content signals across the paginated cluster.
Twig templating for category descriptions — write descriptions with {% if %} / {% for %} / {% set %} and a curated set of safe filters (escape, upper, lower, trim, etc.).
Sandbox-secured Twig engine — no method calls, no object access, no template inheritance: just safe data interpolation.
Request-scope memoisation — the same field is rendered at most once per request. No duplicate Twig processing per page load.

Why Is This a Game Changer?

Empty meta tags become a non-problem. Imported a 50,000-SKU catalogue without meta titles? Every page still gets a usable title and description from day one.
Categories convert and rank. The classic conflict — long description for SEO vs. clean grid for conversion — disappears. Both audiences get what they want.
No duplicate content from pagination. Google sees one canonical description for ?p=1 and treats ?p=2..N as paginated continuations, exactly as the spec intends.
Safe templating, even with junior staff. The Twig sandbox means a marketer typing {{ category.name }} can't accidentally execute arbitrary PHP or leak server state.

How Does It Work?

Two plugin layers do the work:

Meta-fill plugin — wraps Product::getData() / Category::getData() for the meta-title and meta-description fields. When the stored value is empty, the plugin returns the synthesised fallback. Result is memoised per request.
Layout repositioning plugin — moves the category.description block in the layout XML so it renders below product_list_toolbar_pager. On paginated requests (?p=2..N), the block is removed entirely.

Example: templated category description

twig

{% if filters.brand %}
    Browse our collection of {{ category.name }} from {{ filters.brand }}.
{% else %}
    Discover the full range of {{ category.name }} — over {{ category.product_count }} styles in stock.
{% endif %}

Configuration at a glance

Find the module under Stores → Configuration → Qoliber → SEO: Dynamic Descriptions. Toggle each behaviour independently — auto-fill, repositioning, pagination strip — per store view.

What's New in 2.1

Critical security hardening — Twig sandbox enabled, HTML auto-escape on, unsafe html_entity_decode() removed from the render pipeline. Template context is now scalars-and-null only.
Hot-path bail-out — meta-field plugin exits in O(1) for unhandled fields, eliminating per-call iteration over the modifier pool.
Request-scope memoisation caches (event_prefix, entity_id, field) tuples. Significant TTFB improvement on product-heavy pages.