- Checkout (payment process)
- The sequence of steps from the basket to successful payment. The most critical part of a webshop: every unnecessary field and step causes measurable drop-off.
- Variant
- A version of the same product by size, colour or pack size, with its own stock and price. The variant structure determines how complex the catalogue is.
- Attribute
- A structured property of the product (material, weight, manufacturer, power). Filters, feeds and GPSR data fields are all built from these.
- Core Web Vitals
- Google's three user experience metrics: loading speed, interaction responsiveness and visual stability. Measured on real user data.
- SSR (server-side rendering)
- The server sends ready-made HTML, so the page is readable even without running JavaScript. This is what makes the content readable to search engines and AI answer engines.
- Product feed
- A structured product list (XML or CSV) for advertising and comparison platforms: Google Shopping, Árukereső, Meta catalogue.
- GTIN / EAN
- An international, barcode-based product identifier number. Its absence is a common reason for rejection on Google Shopping and marketplaces.
- Payment gateway
- The provider that processes card payments (SimplePay, Barion, Stripe). The webshop only redirects and processes the callback; it never stores card data.
- Webhook / callback
- A notification sent from an external system to the webshop (for example, about a successful payment). Handling duplicate or late-arriving callbacks is a classic source of bugs.
- ERP
- An enterprise resource planning system that manages stock, prices and orders. In an integration, the main question is which system is the source of truth.
- 301 redirect
- A permanent redirect from an old URL to a new one. During a migration, this is what preserves search rankings and the strength of inbound links.
- Structured data (schema)
- Machine-readable markup for the product, price, stock and reviews. This is what enables rich results and AI answer citations.
- WCAG 2.1 AA
- The mid-level tier of the international accessibility standard. The EAA's practical benchmark for ecommerce services.
- Consent Mode v2
- Google's consent management framework. Without it, ad conversion measurement and audience building are limited in the EU.
- Server-side tracking
- Measurement data goes from the server to the analytics system, bypassing the browser. It gives more accurate conversion data even with ad blockers and cookie restrictions in place.
- Cart abandonment
- When a visitor adds items to the basket but doesn't complete the purchase. The most common causes: unexpected delivery costs, mandatory registration, a slow or long checkout.
- Multistore
- Running several webshops on a shared back end: separate domain, design, language or currency, with a shared catalogue and admin.
- Staging environment
- A test environment identical to live, where development and updates can be tried out risk-free before customers encounter them.